CN202260670U - Low-torque ripple doubly salient motor - Google Patents
Low-torque ripple doubly salient motor Download PDFInfo
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- CN202260670U CN202260670U CN2011203377798U CN201120337779U CN202260670U CN 202260670 U CN202260670 U CN 202260670U CN 2011203377798 U CN2011203377798 U CN 2011203377798U CN 201120337779 U CN201120337779 U CN 201120337779U CN 202260670 U CN202260670 U CN 202260670U
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- pole
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- 238000004804 winding Methods 0.000 claims abstract description 10
- 230000010349 pulsation Effects 0.000 claims abstract description 9
- 210000000515 tooth Anatomy 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A low torque ripple doubly salient motor is a doubly salient motor and comprises a stator and a rotor of the motor, wherein the stator is arranged outside or inside the rotor and comprises a stator iron core (1) and a plurality of stator teeth (2)The rotor comprises a rotor core (3) and rotor teeth (4), wherein the stator core (1) is annular, the inner circular surface of the stator core is uniformly distributed on the inner circular surface of the stator core, the stator teeth (2) are wound with concentrated windings (5) on the stator teeth (2), the outer circular surface of the rotor core (3) is uniformly distributed with the rotor teeth (4), an air gap (6) is reserved, and the relation of the number of poles of the stator and the rotor is as follows: number of stator poles NsEqual to 4 times of motor phase number m and rotor pole number NrEqual to 4 times the number of motor phases m minus 1, i.e., 4(m-1), to achieve a reduction in torque ripple. The device reduces torque pulsation by reasonably selecting the number of pole pairs of the stator and the rotor, improves the vibration and noise of the doubly salient motor, reasonably adjusts an electromagnetic magnetic circuit, reduces iron loss and copper loss, and improves the efficiency of the motor.
Description
Technical field
The utility model relates to a kind of low torque ripple double salient pole motor, belongs to the motor manufacturing technology field.
Background technology
Motor is a requisite pith in the drive system, and the motor of superior performance can make whole drive system that more wide application prospect is arranged.Double salient-pole electric machine is one type of relatively unique motor; Its stator and rotor all adopt the salient-pole structure magnetic pole obviously can distinguish, common double salient-pole electric machine comprises switched reluctance machines, doubly salient permanent magnet motor, flux switch permanent magnet motor, composite excitation switch magnetic-linkage motor etc.; Also have other forms of double salient-pole electric machine, their stator and rotor form by silicon steel plate stacking, double salient-pole electric machine since have simple in structure, cost is low, good reliability, easily manufactured, efficient is high, speed adjustable range is wide etc., and advantage is applied widely.But the motor of this type of biconvex electrode structure makes the output torque have flutter component, produces vibration and noise then; Cause the motor operation to worsen; And then influence the control performance of whole system, can have a strong impact on motor properties when torque pulsation is excessive, even cause the motor can't operate as normal.Therefore; The high-performance motor must weaken torque pulsation as much as possible; At present mainly be to realize weakening the purpose of torque pulsation through improving controller or control strategy, though realized reducing the purpose of torque pulsation to a certain extent, but increased the complexity of controller; Increase the manufacturing cost of motor simultaneously, influenced the design of electric machine structure.
The utility model content
The purpose of the utility model is to propose a kind of low torque ripple double salient pole motor; It is a kind of design of improving the double salient-pole electric machine body; The stator through reasonably selecting motor and the number of pole-pairs of rotor; Can weaken the stator and the rotor pole logarithm of the double salient-pole electric machine of torque pulsation effectively, it is reasonable that product has design science, characteristics such as mechanical efficiency height.
Describe the concrete technology contents of the utility model in detail below in conjunction with the Figure of description mark.
A kind of low torque ripple double salient pole motor is double salient-pole electric machine, comprises the stator and the rotor of motor; Its described stator arrangement is outside or inner said rotor, and said stator comprises stator core 1 and several stator tooths 2, and said rotor comprises rotor core 3 and rotor tooth 4; Wherein, said stator core 1 is an annular, is uniformly distributed with described stator tooth 2 at its internal circular surfaces; On said stator tooth 2, be wound with and concentrate winding 5; The outer round surface of said rotor core 3 is evenly equipped with rotor tooth 4, does not have winding, permanent magnet and slip ring on the said rotor, leaves air gap 6 between said stator and the rotor; The axial line of said stator and the axial line of said rotor coincide, and the number of poles relation of said stator and rotor is: stator poles N
sEqual 4 times number of motor phases m, rotor number of poles N
rEqual number of motor phases m and subtract 14 times, i.e. 4 (m-1) are to realize reducing torque pulsation.Described number of motor phases m equals 4, and promptly number of pole-pairs is 16,/12 four on the contrary to the double salient-pole electric machine tandem-type connection.
The utility model has thoroughly solved the problem that prior art exists, and has following beneficial effect: through reasonably selecting the number of pole-pairs of stator and rotor, the radially Reeb of motor is improved effectively to the vibration shape of motor radial vibration; Thereby reduced torque pulsation; So not only improve the vibration and the noise of double salient-pole electric machine, also rationally adjusted electromagnetic circuit, reduced iron loss and copper loss; Thereby improved efficiency of motor, had certain economic benefits; It is reasonable that this product has design science, and mechanical efficiency is high, have simultaneously double salient-pole electric machine simple in structure, cost is low, good reliability, easily manufactured, advantage such as efficient is high, speed adjustable range is wide.
Description of drawings
Fig. 1 the utility model embodiment 1 structural representation (four phases, 16/12 differential concatenation double salient-pole electric machine);
When Fig. 2 is the radial load exponent number n=1 of the utility model to stator core deformation effect figure;
When Fig. 3 is the radial load exponent number n=2 of the utility model to stator core deformation effect figure;
When Fig. 4 is the radial load exponent number n=3 of the utility model to stator core deformation effect figure;
When Fig. 5 is the radial load exponent number n=4 of the utility model to stator core deformation effect figure.
Embodiment
Further describe the technology contents and the embodiment of the utility model below in conjunction with accompanying drawing 1-5.
Fig. 1 is the utility model embodiment 1 structural representation, and expression the utility model four is the structural representation of 16/12 differential concatenation double salient-pole electric machine mutually, and this execution mode comprises stator, rotor; Stator is positioned at rotor exterior, and stator comprises the stator core 1 and stator tooth 2 of annular, and rotor comprises rotor core 3 and rotor tooth 4; The internal circular surfaces of stator core 1 is evenly equipped with stator tooth 2, is wound with on the stator tooth to concentrate winding 5, and the outer round surface of rotor core 3 is evenly equipped with rotor tooth 4; Rotor has no winding, permanent magnet, slip ring of form etc.; Leave air gap 6 between stator and the rotor, the axial line of stator and the axial line of rotor coincide, and the stator and rotor number of poles meets N
s=4m, N
r=4 (m-1).Here get m=4, promptly number of pole-pairs is 16,/12 four on the contrary to the double salient-pole electric machine tandem-type connection.When four phase windings all passed to forward current, the distribution of the polarity of magnetic pole was NSNSNSNS on stator
circle.By finding out among the figure, four receive the influence of mutual induced EMF of adjacent phase in full accord mutually, and magnetic circuit all be to lack magnetic circuit, show consistency.The method that connects of playing a reversed role for this winding; Motor needs two are conducted and utilize alternate mutual inductance work; Performance evaluation is more complicated than tradition
mode that is conducted, and it also shows than bigger the exerting oneself of traditional single phase conduction mode simultaneously.Therefore adopting 16/12 for four phase motors, to be distributed as the winding connection of NSNSNSNS helpful to improving noise of motor.
Further specify the technical scheme of the utility model with reference to Fig. 1～Fig. 4.The low torque ripple double salient pole motor that the utility model provides; The electromagnetic force that stator wherein and rotor produce can be divided into tangential force and two components of radial load; The tangential force component is not a main noise source, when motor connects with load, adopt elasticity to be connected measure and can avoid, and radially the exponent number n of Reeb has confirmed the vibration shape of motor radial vibration; Represent the deformation extent that vibrates like dotted line in the diagram; Through correct selection stator and rotor number of poles, rationally adjust the motor electromagnetic magnetic circuit, thereby effectively suppressed radially the Reeb the vibration shape of motor radial vibration.
The utility model only carries out detailed description with regard to a most preferred embodiment of the utility model; But can not be interpreted as the restriction of other modes that the utility model is implemented; Everyly on the utility model basis, further improve and similar or identical scheme, all being regarded as is the scope that the utility model is asked for protection.
Claims (2)
1. low torque ripple double salient pole motor is double salient-pole electric machine, comprises the stator and the rotor of motor; It is characterized in that: described stator arrangement is outside or inner said rotor, and said stator comprises stator core (1) and several stator tooths (2), and said rotor comprises rotor core (3) and rotor tooth (4); Wherein, said stator core (1) is an annular, is uniformly distributed with described stator tooth (2) at its internal circular surfaces; On said stator tooth (2), be wound with concentrated winding (5); The outer round surface of said rotor core (3) is evenly equipped with rotor tooth (4), does not have winding, permanent magnet and slip ring on the said rotor, leaves air gap (6) between said stator and the rotor; The axial line of said stator and the axial line of said rotor coincide, and the number of poles relation of said stator and rotor is: stator poles N
sEqual 4 times number of motor phases m, rotor number of poles N
rEqual number of motor phases m and subtract 14 times, i.e. 4 (m-1) are to realize reducing torque pulsation.
2. low torque ripple double salient pole motor according to claim 1 is characterized in that: described number of motor phases m equals 4, and promptly number of pole-pairs is 16,/12 four on the contrary to the double salient-pole electric machine tandem-type connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203377798U CN202260670U (en) | 2011-09-02 | 2011-09-02 | Low-torque ripple doubly salient motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203377798U CN202260670U (en) | 2011-09-02 | 2011-09-02 | Low-torque ripple doubly salient motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260670U true CN202260670U (en) | 2012-05-30 |
Family
ID=46121854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203377798U Expired - Lifetime CN202260670U (en) | 2011-09-02 | 2011-09-02 | Low-torque ripple doubly salient motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260670U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078463A (en) * | 2012-12-24 | 2013-05-01 | 广州日滨科技发展有限公司 | Axial magnetizing permanent magnet motor |
| CN109194076A (en) * | 2018-10-31 | 2019-01-11 | 山东理工大学 | A kind of electric car high reliability driving motor |
-
2011
- 2011-09-02 CN CN2011203377798U patent/CN202260670U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078463A (en) * | 2012-12-24 | 2013-05-01 | 广州日滨科技发展有限公司 | Axial magnetizing permanent magnet motor |
| CN109194076A (en) * | 2018-10-31 | 2019-01-11 | 山东理工大学 | A kind of electric car high reliability driving motor |
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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: 20120530 |
|
| CX01 | Expiry of patent term |