CN205070733U - Small -size PMSM - Google Patents
Small -size PMSM Download PDFInfo
- Publication number
- CN205070733U CN205070733U CN201520736519.6U CN201520736519U CN205070733U CN 205070733 U CN205070733 U CN 205070733U CN 201520736519 U CN201520736519 U CN 201520736519U CN 205070733 U CN205070733 U CN 205070733U
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- magnetic circuit
- magnet steel
- small size
- rotor
- synchronous motor
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Abstract
The utility model relates to a small -size PMSM, the stator comprises stator core (1 -1) and armature winding (1 -2), be equipped with a plurality of square groove on the stator core (1 -1), two -layer armature winding (1 -2) has been set up in every square groove, the magnet steel is officious announcement set up in the circumferential edge of rotor punching (2 -5) is equipped with two blocks of radial magnet steel (2 -3) and two blocks of tangential magnet steel (2 -4) along the department in every antitrochanter magnetic pole, one (1 -8) in the magnetic circuit hole is established respectively to the both sides of radial magnet steel (2 -3), the slot combination of one (1 -8) in the magnetic circuit hole and radial magnet steel (2 -3) formed another layer of q of slot combination constitution axle armature magnetic flow way of one deck q axle armature magnetic flow way, one (1 -8) in the magnetic circuit hole and tangential magnet steel (2 -4), tangential magnet steel (2 -4) and constitute magnetic circuit two (1 -9) in the hole to its limit of answering the groove. The utility model discloses simple structure, easy production, it is with low costs, and easy the use is promoted.
Description
Technical field
The utility model relates to technical field of motors, is specifically related to a kind of small size permagnetic synchronous motor.
Background technology
New-energy automobile, in order to improve the power performance of car load, increases drive motors in new-energy automobile scheme newly developed on trailing wheel of being everlasting.But vehicle bridge limited space, harsh to the radial dimension restriction of motor especially.But the diameter of the main performance index of motor and motor square is directly proportional, is deteriorated along with motor diameter reduces motor winding pole rotor manufacture process in addition, affects the space availability ratio of motor even further.The difficult points such as therefore, it is high that such drive motors has power density, and the range of speeds is wide, and operating efficiency is high.The supporting high-grade drives motor of existing market generally adopts comparatively complicated permagnetic synchronous motor scheme, as shown in Figure 1, comprise stator core 1-1, and be embedded in the armature winding 1-2 in stator core 1-1, the edge of rotor punching 1-5 is provided with a type magnet steel 1-3 and V-type magnet steel 1-4; It is little to there is driving power in the synchronous machine of this kind of scheme, and efficiency is on the low side, and armature rolls off the production line and the problem such as magnet steel processing technology difference.
Utility model content
Goal of the invention of the present utility model is: for the above-mentioned technical problem existed in prior art, provides a kind of driving power large, the small size permagnetic synchronous motor that efficiency is high.
The technical solution adopted in the utility model is such: a kind of small size permagnetic synchronous motor, comprise stators and rotators, described rotor is made up of rotor punching 2-5 and the magnet steel be embedded on rotor punching 2-5 in slotted eye, described rotor punching 2-5 is provided with large duplicate removal hole 1-6 and little duplicate removal hole 1-7, and wherein said stator is made up of stator core 1-1 and armature winding 1-2; Described stator core 1-1 is provided with several square grooves; Two-layer armature winding 1-2 is provided with in described each square groove; The non-homogeneous circumferential edges place being arranged at described rotor punching 2-5 of described magnet steel, is provided with two pieces of radial magnet steel 2-3 and two piece tangential magnet-steel 2-4 in often pair of rotor magnetic pole; The both sides of described radial magnet steel 2-3 establish magnetic circuit hole one 1-8 respectively, and described magnetic circuit hole one 1-8 and the slot fit of radial magnet steel 2-3 define one deck q armature axis flux path, and the slot fit of magnetic circuit hole one 1-8 and tangential magnet-steel 2-4 forms another layer of q armature axis flux path; Described tangential magnet-steel 2-4 and to its answer groove limit form magnetic circuit hole two 1-9.
Further, the cross section of described armature winding 1-2 is rectangular configuration.
Further, described stator outer diameter R is less than or equal to 180mm.
Further, described square groove number is less than or equal to 48.
Further, described magnetic circuit hole two 1-9 and large duplicate removal hole 1-6 constitutes a narrow limit of rotor, described same extremely under the narrow a pair parallel distribution in limit and form parallel magnetic bridge A4.
Further, described magnetic circuit hole one 1-8 is trapezium structure.
Further, the angle polar arc B of described same two extremely interior magnetic circuit hole one 1-8 is 05 ~ 0.6 times of rotor polar arc.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, structure of the present utility model is simple, and easily produce, cost is low, and easily uses popularization;
2, the utility model leads to rotor often pair magnetic pole and only produces radial magnetic field magnet steel and 2 blocks of tangential magnetic field magnet steel by 2 pieces and form, and therefore magnet steel hinge structure simplifies assembly technology;
3, the utility model is ingenious realizes two-layer q armature axis passage: on rotor punching, outside each radial magnet steel of rotor, have 2 place's trapezoidal holes, trapezoidal hole and radial magnet steel slot fit define one deck q armature axis flux path; Trapezoidal hole and tangential magnet-steel slot fit form another layer of q armature axis flux path.So every pole only defines two-layer q armature axis passage with 2 pieces of magnet steel limits, possesses good reluctance torque contribution rate;
4, during the utility model empty load of motor stator core to be mainly subject to radial magnet steel excitatory, tangential magnet-steel is not direct excitatory to stator, and therefore magnetizing flux is lower;
5, increase magnetic when the magnetic line of force distribution of motor is relatively unloaded during the utility model load obvious, the magnetic line of force in gap magnetic field obviously offsets to a direction, and torsional interaction power is consistent, magnetic resistance is obvious.
Accompanying drawing explanation
The utility model illustrates by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the motor schematic diagram of prior art;
Fig. 2 is partial schematic diagram one of the present utility model;
Fig. 3 is unloaded magnetic circuit simulation schematic diagram of the present utility model;
Fig. 4 is that magnetic circuit simulation schematic diagram is carried in load of the present utility model;
Fig. 5 is the partial enlarged drawing that magnetic circuit simulation schematic diagram is carried in load of the present utility model;
Fig. 6 is polar arc angle schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Specific embodiment, as seen in figs, a kind of small size permagnetic synchronous motor, comprise stators and rotators, described rotor is made up of rotor punching 2-5 and the magnet steel be embedded on rotor punching 2-5 in slotted eye, described rotor punching 2-5 is provided with large duplicate removal hole 1-6 and little duplicate removal hole 1-7, and wherein said stator is made up of stator core 1-1 and armature winding 1-2; Described stator core 1-1 is provided with several square grooves; Two-layer armature winding 1-2 is provided with in described each square groove; The non-homogeneous circumferential edges place being arranged at described rotor punching 2-5 of described magnet steel, is provided with two pieces of radial magnet steel 2-3 and two piece tangential magnet-steel 2-4 in often pair of rotor magnetic pole; The both sides of described radial magnet steel 2-3 establish magnetic circuit hole one 1-8 respectively, and described magnetic circuit hole one 1-8 and the slot fit of radial magnet steel 2-3 define one deck q armature axis flux path, and the slot fit of magnetic circuit hole one 1-8 and tangential magnet-steel 2-4 forms another layer of q armature axis flux path; Described tangential magnet-steel 2-4 and to its answer groove limit form magnetic circuit hole two 1-9.
Concrete, the cross section of described armature winding 1-2 is rectangular configuration.
Concrete, described stator outer diameter R equals 160mm.
Concrete, described square groove number 6 equals 48.
Concrete, described magnetic circuit hole two 1-9 and large duplicate removal hole 1-6 constitutes a narrow limit of rotor, described same extremely under the narrow a pair parallel distribution in limit and form parallel magnetic bridge A4.
Concrete, described magnetic circuit hole one 1-8 is trapezium structure.
Concrete, the angle polar arc B of described same two extremely interior magnetic circuit hole one 1-8 is 0.55 times of rotor polar arc.
During empty load of motor work, magnetic field effect as shown in Figure 3.During empty load of motor, to be mainly subject to radial magnet steel excitatory for stator core, and tangential magnet-steel is not direct excitatory to stator, and therefore magnetizing flux is lower.
During load, the magnetic line of force distribution of motor as shown in Figures 4 and 5 (Fig. 5 is partial enlarged drawing).Increase magnetic when load is relatively unloaded as seen from the figure obvious, the magnetic line of force in gap magnetic field obviously offsets to a direction, and torsional interaction power is consistent, magnetic resistance is obvious.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. a small size permagnetic synchronous motor, comprise stators and rotators, described rotor is made up of rotor punching (2-5) and the magnet steel be embedded in the upper slotted eye of rotor punching (2-5), described rotor punching (2-5) is provided with large duplicate removal hole (1-6) and little duplicate removal hole (1-7), it is characterized in that: described stator is made up of stator core (1-1) and armature winding (1-2); Described stator core (1-1) is provided with several square grooves; Two-layer armature winding (1-2) is provided with in described each square groove; The non-homogeneous circumferential edges place being arranged at described rotor punching (2-5) of described magnet steel, is provided with two pieces of radial magnet steels (2-3) and two pieces of tangential magnet-steels (2-4) in often pair of rotor magnetic pole; The both sides of described radial magnet steel (2-3) establish magnetic circuit hole one (1-8) respectively, described magnetic circuit hole one (1-8) defines one deck q armature axis flux path with the slot fit of radial magnet steel (2-3), and the slot fit of magnetic circuit hole one (1-8) and tangential magnet-steel (2-4) forms another layer of q armature axis flux path; Described tangential magnet-steel (2-4) and to its answer groove limit form magnetic circuit hole two (1-9).
2. small size permagnetic synchronous motor according to claim 1, is characterized in that, the cross section of described armature winding (1-2) is rectangular configuration.
3. small size permagnetic synchronous motor according to claim 1, is characterized in that, described stator outer diameter R is less than or equal to 180mm.
4. small size permagnetic synchronous motor according to claim 1, is characterized in that, described square groove number is less than or equal to 48.
5. small size permagnetic synchronous motor according to claim 1, it is characterized in that, described magnetic circuit hole two (1-9) and large duplicate removal hole (1-6) constitute a narrow limit of rotor, described same extremely under the narrow a pair parallel distribution in limit and form parallel magnetic bridge A4.
6. small size permagnetic synchronous motor according to claim 1, is characterized in that, described magnetic circuit hole one (1-8) is trapezium structure.
7. small size permagnetic synchronous motor according to claim 6, is characterized in that, the angle polar arc B in described same extremely interior two magnetic circuit holes one (1-8) is 05 ~ 0.6 times of rotor polar arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736519.6U CN205070733U (en) | 2015-09-14 | 2015-09-14 | Small -size PMSM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736519.6U CN205070733U (en) | 2015-09-14 | 2015-09-14 | Small -size PMSM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205070733U true CN205070733U (en) | 2016-03-02 |
Family
ID=55397234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520736519.6U Expired - Fee Related CN205070733U (en) | 2015-09-14 | 2015-09-14 | Small -size PMSM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205070733U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787318A (en) * | 2016-12-28 | 2017-05-31 | 卧龙电气集团股份有限公司 | Permagnetic synchronous motor p-m rotor punching and permagnetic synchronous motor |
| CN108736606A (en) * | 2017-04-25 | 2018-11-02 | 大众汽车有限公司 | Motor including stator and rotor and the rotor for motor |
| WO2019174328A1 (en) * | 2018-03-16 | 2019-09-19 | 珠海格力电器股份有限公司 | Rotor structure and motor having same |
-
2015
- 2015-09-14 CN CN201520736519.6U patent/CN205070733U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787318A (en) * | 2016-12-28 | 2017-05-31 | 卧龙电气集团股份有限公司 | Permagnetic synchronous motor p-m rotor punching and permagnetic synchronous motor |
| CN108736606A (en) * | 2017-04-25 | 2018-11-02 | 大众汽车有限公司 | Motor including stator and rotor and the rotor for motor |
| WO2019174328A1 (en) * | 2018-03-16 | 2019-09-19 | 珠海格力电器股份有限公司 | Rotor structure and motor having same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20210914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |