CN105406626A - Motor rotor and motor - Google Patents
Motor rotor and motor Download PDFInfo
- Publication number
- CN105406626A CN105406626A CN201510967188.1A CN201510967188A CN105406626A CN 105406626 A CN105406626 A CN 105406626A CN 201510967188 A CN201510967188 A CN 201510967188A CN 105406626 A CN105406626 A CN 105406626A
- Authority
- CN
- China
- Prior art keywords
- rotor
- motor
- magnetic pole
- magnetic
- panels
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 239000010949 copper Substances 0.000 abstract description 5
- 230000010349 pulsation Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- 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
- H02K1/2753—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 or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a motor rotor and a motor. The motor rotor comprises an iron core and a plurality of magnetic poles arranged in the iron core; and two magnetic steel plates of at least one of the multiple magnetic poles are arranged in a nonaxisymmetrical manner relative to the radial line of the rotor. According to the motor rotor and the motor, the motor cogging torque is reduced, the torque pulsation in a load state is lowered, and under a condition of same power output of the motor, the motor input current is reduced, the copper loss is reduced and the efficiency of the motor is improved.
Description
Technical field
The present invention relates to machine field, particularly relate to a kind of rotor and motor.
Background technology
In prior art, as shown in Figure 2, the two panels magnetic links being arranged on the arbitrary magnetic pole of core interior in rotor is substantially all that relative rotor radial transmission line is symmetrical arranged (as L3=L4 in Fig. 2), this structure causes motor cogging torque larger, torque ripple is comparatively large, reduces the efficiency of motor; In addition, the how V-shaped setting of two panels magnetic links of arbitrary magnetic pole, and the drift angle of the magnetic pole of V-arrangement setting is towards the radially inner side of rotor, this structure makes motor magnetic line of force length increase, and the loss of electric machine increases, and motor performance reduces.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of rotor and the motor that can reduce motor cogging torque.
For solving the problem, the invention provides a kind of rotor, comprise iron core and the multiple magnetic poles being arranged on core interior, each magnetic pole comprises two panels magnetic links, and in multiple magnetic pole, the radial transmission line non-axis symmetry of the two panels magnetic links relative rotor of at least one magnetic pole is arranged.
As preferably, multiple magnetic pole is arranged in pairs, and in multiple magnetic pole, the two panels magnetic links relative rotor radial transmission line non-axis symmetry of at least one pair of magnetic pole is arranged.
As preferably, the V-shaped setting of two panels magnetic links of at least one magnetic pole.
As preferably, the drift angle of the magnetic pole of at least one V-shaped setting is towards the radial outside of rotor.
As preferably, the angle of the two panels magnetic links of the magnetic pole of at least one V-shaped setting and the radial transmission line of rotor is not etc.
As preferably, the two panels magnetic links of the magnetic pole of at least one V-shaped setting is equal with the angle of the radial transmission line of rotor.
As preferably, the drift angle of the magnetic pole of at least two V-shaped settings is not etc.
Present invention also offers a kind of motor, comprise aforesaid rotor.
The present invention is arranged by making the radial transmission line non-axis symmetry of the two panels magnetic links relative rotor of at least one magnetic pole, the cogging torque of motor can be reduced, torque pulsation when reducing load, make motor in identical power output situation, motor input current reduces, copper loss reduces, and improves the efficiency of motor.
Accompanying drawing explanation
The accompanying drawing forming the application is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is motor rotor construction of the present invention embodiment schematic diagram;
Fig. 2 is the structural representation of rotor in prior art.
Description of reference numerals:
1, iron core; 2, magnetic pole; 21, magnetic links.
Embodiment
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 1, the invention provides a kind of rotor, comprise iron core 1 and the multiple magnetic poles 2 being arranged on core interior, each magnetic pole comprises two panels magnetic links 21, and in multiple magnetic pole 2, the radial transmission line non-axis symmetry of two panels magnetic links 21 relative rotor of at least one magnetic pole 2 is arranged.The present invention is arranged by making the radial transmission line non-axis symmetry of two panels magnetic links 21 relative rotor of at least one magnetic pole 2, reduce the cogging torque of motor, torque pulsation when reducing load, make motor in identical power output situation, motor input current reduces, copper loss reduces, and improves the efficiency of motor.
Usually, multiple magnetic pole 2 is arranged in pairs, and in multiple magnetic pole 2, the two panels magnetic links 21 relative rotor radial transmission line non-axis symmetry of at least one pair of magnetic pole 2 is arranged.In the multipair magnetic pole 2 of i.e. rotor, can selectively make a pair or multipair magnetic pole 2 magnetic links 21 relative rotor radial transmission line non-axis symmetry arrange, the radial transmission line of magnetic links 21 relative rotor of other magnetic pole 2 is symmetrical arranged, compared to existing technology, the cogging torque of motor can be reduced further, reduce torque ripple, improve electric efficiency.Preferably, the magnetic links 21 relative rotor radial transmission line non-axis symmetry of all magnetic poles 2 is arranged.In the two panels magnetic links 21 that non-axis symmetry is arranged, wherein the effective length of a slice magnetic links is 1.2 to 1.5 times of another sheet magnetic links, this kind of structure, and the effect reducing motor cogging torque is more excellent.
Shown in composition graphs 1, in the present invention, the V-shaped setting of two panels magnetic links 21 of at least one magnetic pole 2.Selectively, the two panels magnetic links 21 of all magnetic poles 2 all can V-shapedly be arranged, also can the V-shaped setting of part, and part is linearly arranged.Preferably, the drift angle of the magnetic pole 2 of at least one V-shaped setting, towards the radial outside of rotor, reduces motor magnetic line of force length, and then reduces the loss of electric machine, improve motor performance.
As required, the two panels magnetic links 21 of the magnetic pole 2 of V-shaped setting and the angle of the radial transmission line of rotor can be selected equal or not etc.; In addition, the drift angle of the magnetic pole 2 of V-shaped setting also can be selected equal or not etc., or is chosen to the drift angle of the magnetic pole 2 arranged equal, and the drift angle of adjacent magnetic pole 2 is not etc.Thus change magnetic line of force length and the cogging torque of motor, and then electric efficiency is made to reach more excellent.
More specifically, in preferred embodiment of the present invention, be four for magnetic pole 2 shown in Fig. 1, the equal non-axis symmetry of radial transmission line of two panels magnetic links 21 relative rotor of each magnetic pole 2 is arranged, and four all V-shaped settings of magnetic pole 2, the drift angle of V-arrangement is towards the radial outside of rotor.Namely the two panels magnetic links of the arbitrary magnetic pole 2 of this rotor is relative to motor d axle mal-distribution (as L1 > L2 in Fig. 1), and the V-shaped setting of two panels magnetic links 21 of arbitrary magnetic pole 2, V-arrangement drift angle is towards the radial outside of rotor.D axle is asymmetric relatively for the two panels magnetic links 21 of magnetic pole 2, decreases motor cogging torque, torque pulsation when reducing load, and make motor in identical power output situation, motor input current reduces, and copper loss reduces, and improves the efficiency of motor; The V-shaped setting of two panels magnetic links 21 of magnetic pole 2, the drift angle of the magnetic pole 2 that V-arrangement is arranged is towards the radial outside of rotor, make magnetic links 21 more press close to the outer surface of rotor, the magnetic line of force length produced when then making motor run is relatively short, and magnetic force loss reduces, motor magnetic flux is increased to some extent, cause back electromotive force to increase, motor input current reduces, and copper olse reduces, the loss of electric machine reduces, and improves the efficiency of motor.
Present invention also offers a kind of motor, adopt aforesaid rotor, effectively can reduce cogging torque and motor magnetic line of force length, and then reduce the loss of electric machine, improve motor performance.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a rotor, comprise iron core (1) and be arranged on the inner multiple magnetic poles (2) of iron core (1), each described magnetic pole (2) comprises two panels magnetic links (21), it is characterized in that, in described multiple magnetic pole (2), the radial transmission line non-axis symmetry of the relatively described rotor of described two panels magnetic links (21) of magnetic pole (2) described at least one is arranged.
2. rotor as claimed in claim 1, is characterized in that,
Described multiple magnetic pole (2) is arranged in pairs, and in described multiple magnetic pole (2), described two panels magnetic links (21) the relatively described rotor radial line non-axis symmetry of magnetic pole (2) described at least one pair of is arranged.
3. rotor as claimed in claim 1, is characterized in that,
Two panels magnetic links (21) the V-shaped setting of magnetic pole described at least one (2).
4. rotor as claimed in claim 3, is characterized in that,
The drift angle of the described magnetic pole (2) of at least one V-shaped setting is towards the radial outside of described rotor.
5. rotor as claimed in claim 4, is characterized in that,
The angle of the described two panels magnetic links (21) of the described magnetic pole (2) of at least one V-shaped setting and the radial transmission line of described rotor is not etc.
6. rotor as claimed in claim 4, is characterized in that,
The described two panels magnetic links (21) of the described magnetic pole (2) of at least one V-shaped setting is equal with the angle of the radial transmission line of described rotor.
7. rotor as claimed in claim 4, is characterized in that,
The drift angle of the described magnetic pole (2) of at least two V-shaped settings is not etc.
8. a motor, comprises rotor, it is characterized in that, the rotor of described rotor according to any one of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967188.1A CN105406626A (en) | 2015-12-18 | 2015-12-18 | Motor rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967188.1A CN105406626A (en) | 2015-12-18 | 2015-12-18 | Motor rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105406626A true CN105406626A (en) | 2016-03-16 |
Family
ID=55471943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510967188.1A Pending CN105406626A (en) | 2015-12-18 | 2015-12-18 | Motor rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105406626A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819365A (en) * | 2016-09-13 | 2018-03-20 | 南京德朔实业有限公司 | Rotor punching |
| CN109450133A (en) * | 2018-11-06 | 2019-03-08 | 山东理工大学 | A kind of oblique V-type set magnet permanent synchronization motor of electric car |
| CN114665631A (en) * | 2022-03-29 | 2022-06-24 | 重庆隆鑫新能源科技有限公司 | Brushless motor rotor and brushless motor thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004048912A (en) * | 2002-07-12 | 2004-02-12 | Hitachi Industrial Equipment Systems Co Ltd | Permanent magnet type rotary electric machine and compressor using it |
| CN1476146A (en) * | 2002-07-12 | 2004-02-18 | 株式会社日立产机系统 | Permanent magnet type rotary motor and compressor using same |
| US20080231135A1 (en) * | 2007-03-20 | 2008-09-25 | Kabushiki Kaisha Yaskawa Denki | Electromagnetic steel plate forming member, electromagnetic steel plate laminator, permanent magnet type synchronous rotating electric machine rotor provided with the same, permanent magnet type synchronous rotating electric machine, and vehicle, elevator, fluid machine, and processing machine using the rotating electric machine |
| CN104836355A (en) * | 2015-05-14 | 2015-08-12 | 广东美芝制冷设备有限公司 | Rotor of rotary motor, permanent magnetic motor, compressor and air-conditioning system |
| CN105048671A (en) * | 2015-08-19 | 2015-11-11 | 武汉迈信电气技术有限公司 | Asymmetric V-shaped rotor punching sheet and built-in permanent-magnetic motor using the same |
| CN205377487U (en) * | 2015-12-18 | 2016-07-06 | 珠海凌达压缩机有限公司 | Motor rotor and motor |
-
2015
- 2015-12-18 CN CN201510967188.1A patent/CN105406626A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004048912A (en) * | 2002-07-12 | 2004-02-12 | Hitachi Industrial Equipment Systems Co Ltd | Permanent magnet type rotary electric machine and compressor using it |
| CN1476146A (en) * | 2002-07-12 | 2004-02-18 | 株式会社日立产机系统 | Permanent magnet type rotary motor and compressor using same |
| US20080231135A1 (en) * | 2007-03-20 | 2008-09-25 | Kabushiki Kaisha Yaskawa Denki | Electromagnetic steel plate forming member, electromagnetic steel plate laminator, permanent magnet type synchronous rotating electric machine rotor provided with the same, permanent magnet type synchronous rotating electric machine, and vehicle, elevator, fluid machine, and processing machine using the rotating electric machine |
| CN104836355A (en) * | 2015-05-14 | 2015-08-12 | 广东美芝制冷设备有限公司 | Rotor of rotary motor, permanent magnetic motor, compressor and air-conditioning system |
| CN105048671A (en) * | 2015-08-19 | 2015-11-11 | 武汉迈信电气技术有限公司 | Asymmetric V-shaped rotor punching sheet and built-in permanent-magnetic motor using the same |
| CN205377487U (en) * | 2015-12-18 | 2016-07-06 | 珠海凌达压缩机有限公司 | Motor rotor and motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819365A (en) * | 2016-09-13 | 2018-03-20 | 南京德朔实业有限公司 | Rotor punching |
| CN109450133A (en) * | 2018-11-06 | 2019-03-08 | 山东理工大学 | A kind of oblique V-type set magnet permanent synchronization motor of electric car |
| CN114665631A (en) * | 2022-03-29 | 2022-06-24 | 重庆隆鑫新能源科技有限公司 | Brushless motor rotor and brushless motor thereof |
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