CN203859652U - Novel axial-magnetic-flux doubly-salient permanent magnet generator - Google Patents
Novel axial-magnetic-flux doubly-salient permanent magnet generator Download PDFInfo
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- CN203859652U CN203859652U CN201420173320.2U CN201420173320U CN203859652U CN 203859652 U CN203859652 U CN 203859652U CN 201420173320 U CN201420173320 U CN 201420173320U CN 203859652 U CN203859652 U CN 203859652U
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Abstract
The utility model discloses a novel axial-magnetic-flux doubly-salient permanent magnet generator, and aims at solving the problems including that a present generator is too complex in structure and high in self energy consumption. The novel axial-magnetic-flux doubly-salient permanent magnet generator comprises a rotor, an outer generator stator, an inner generator stator, a permanent magnet ring and a rotor shaft, wherein the inner generator stator is sleeved by the outer generator stator, a gap exists between the outer and inner generator stators, and the permanent magnet ring is mounted in the gap; the rotor shaft is arranged at the center of the rotor and fixed and integrated to the rotor; the rotor shaft penetrates through the center of the inner generator stator and makes no contact with the inner generator stator; and the rotor is placed on the inner and outer generator stators. According to the utility model, a doubly-salient permanent magnet motor is combined with an axial-magnetic-flux motor, and the novel axial-magnetic-flux doubly-salient permanent magnet generator has the advantages of high efficiency, high power density, compact structure, low noise and low starting wind speed.
Description
Technical field
The utility model relates to a kind of generator, and specifically a kind of axial magnetic flux double-salient-pole permanent magnet generator, belongs to technical field of power generation.
Background technology
In generation of electricity by new energy, about the research of generator, mainly concentrate at present on three kinds of generators: brushless double feed generator, magneto alternator and double-salient-pole generator.
Brushless double feed generator can regulate the frequency of exciting current according to prime mover rotation speed change, realize constant frequency output, by changing the amplitude of exciting current and the independent regulation that phase place realizes generated power, reactive power.Because the air gap of brushless double feed generator is large, the excitation reactive power of the control winding pwm converter needing is also large, is therefore not suitable for use in low-speed direct driving generator.
Magneto alternator has series of advantages, as lightweight, efficiency is high, dynamic response is fast etc.Generator is worked under per minute tens low speed that turn to hundreds of, and for guaranteeing that its output is in the scope of normal frequency (30～80Hz), generator need to adopt larger rotor diameter and more number of pole-pairs.In design of electrical motor process, after selected stator diameter, can face and because rotor permanent magnet number of magnetic poles, cause the problem that magnetic pole pole span is little, excitation magnetic potential is not enough more.
Double-salient-pole generator is a kind of New-type electric machine putting forward the 1950's, along with power electronics and microelectronic develop rapidly, in the nineties, doubly salient permanent magnet motor is proposed by people such as famous American motor expert T.A.Lipo as a kind of novel electromechanical integration controllable AC Variable-speed system, and obtains very soon countries in the world scientific research personnel's extensive concern and further investigation.Its electric machine rotor construction profile is similar to switched reluctance machines, is double-salient-pole structure, but is equipped with permanent magnet on its rotor (or stator), so its operation logic and control strategy and switched reluctance machines have essential difference.Doubly salient permanent magnet motor major advantage be simple in structure, be easy to safeguard, control flexibly, dynamic response is fast, good speed adjustment features and torque/current ratio large, it has good using value in aviation and wind power generation field.According to current present Research, double-salient-pole generator can be divided into common double salient pole generator, flux-reversal generator and magnetic flux and switch generator.
Summary of the invention
Technical problem to be solved in the utility model is: the problems such as the structure existing for existing generator is too complicated, self energy consumption is large.
The purpose of this utility model is to propose a kind of have high efficiency, high power density and simple in structure, novel axial magnetic flux double-salient-pole permanent magnet generator.
The technical scheme that the utility model is taked is:
A novel axial magnetic flux doubly salient permanent magnet generator, comprises rotor, generator external stator, generator internal stator, permanent-magnetic clamp and armature spindle; Described generator internal stator is nested in generator external stator, between generator internal stator and generator external stator, leaves gap; Described permanent-magnetic clamp is installed in aforementioned gap; Armature spindle is arranged on the center of rotor, and fixing as a whole; Described armature spindle penetrates the center of generator internal stator, and does not contact with generator internal stator; Described rotor is positioned at the top of generator external stator and generator internal stator;
On described generator external stator, be evenly provided with three generator external stator salient poles, described three generator external stator salient poles are positioned on same circumference; Between described every adjacent two generator external stator salient poles, be generator external stator salient pole groove, the shape of described generator external stator salient pole groove is identical with the shape of generator external stator salient pole; On described three generator external stator salient poles, be all wound with generator external armature winding;
On described generator internal stator, be evenly provided with three generator internal stator salient poles, described three generator internal stator salient poles are positioned on same circumference; Between described every adjacent two generating internal stator salient pole centers, be salient pole groove in generator internal stator, in described generator internal stator, the shape of salient pole groove is identical with the shape of generator internal stator salient pole; On described three generator internal stator salient poles, be all wound with armature winding in generator;
Aforementioned three generator external stator salient poles and three generator internal stator salient poles are positioned at same plane;
Described rotor is provided with external rotor salient pole group and internal rotor salient pole group; Described external rotor salient pole group is corresponding with generator external stator salient pole; Described internal rotor salient pole group is corresponding with generator internal stator salient pole;
Described external rotor salient pole group comprises two external rotor salient poles; Described two external rotor salient poles are evenly arranged on rotor, and are positioned on same circumference; Described two external rotor salient poles are corresponding with three generator external stator salient poles, between two external rotor salient poles and three generator external stator salient poles, leave the first gap;
Described internal rotor salient pole group comprises two internal rotor salient poles, and described two internal rotor salient poles are evenly arranged on rotor, and are positioned on same circumference; Described two internal rotor salient poles are corresponding with three generator internal stator salient poles, and leave the second gap between two internal rotor salient poles and three generator internal stator salient poles; Described the first gap equates with the second gap; Described two external rotor salient poles and two internal rotor salient poles are positioned at same plane; The diameter of the circumference at described two external rotor salient pole places is greater than the diameter of the circumference at described two internal rotor salient pole places.
The shape of generator external stator salient pole described in the utility model, generator internal stator salient pole, external rotor salient pole and internal rotor salient pole is fan-shaped.
In order to have higher power density, the first gap described in the utility model and the second gap are preferably 0.3-1.5mm.
Beneficial effect
The utility model beneficial effect compared with prior art: 1, adopt the generator of tray type structure, axial dimension is short, less duty ratio is easier in flat installing space operation it.2, have a power density high, the moment of inertia of location torque and rotor is little, and low cruise is steady, the output voltage little feature of pulsing.3, under stable state, between stator and rotor, be axially not eccentric, solved the impact of stator and rotor bias on generator performance.4, the utility model combines doubly salient permanent magnet motor and axial-flux electric machine, has advantages of high efficiency, high power density, compact conformation, noise is little, starting wind velocity is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the installation site structural representation of generator external stator of the present utility model, generator external stator salient pole, generator internal stator and generator internal stator salient pole.
Wherein, 1, generator external stator, 1-1, generator external stator salient pole, 1-2, generator external stator salient pole groove, 2, generator internal stator, 2-1, generator internal stator salient pole, salient pole groove in 2-2, generator internal stator, 3, rotor, 4, armature spindle, 5, armature winding in generator, 6, permanent-magnetic clamp, 7, generator external armature winding, 8, external rotor salient pole, 9, internal rotor salient pole, the 10, first gap, the 11, second gap.
Embodiment
For content of the present utility model is become apparent more, below in conjunction with accompanying drawing 1-Fig. 2 and embodiment, be further described.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, novel axial magnetic flux doubly salient permanent magnet generator of the present utility model, comprises rotor 3, generator external stator 1, generator internal stator 2, permanent-magnetic clamp 6 and armature spindle 4.
Generator internal stator 2 is nested in generator external stator 1, between generator internal stator 2 and generator external stator 1, leaves gap; Described permanent-magnetic clamp 6 is installed in aforementioned gap; The outer face of permanent-magnetic clamp 6 contacts with the inner face of generator external stator 1, and the inner face of permanent-magnetic clamp 6 contacts with the outer face of generator internal stator 2.Armature spindle 4 is arranged on the center of rotor 3, and fixing as a whole; Described armature spindle 4 penetrates the center of generator internal stator 2, and does not contact with generator internal stator 2; Rotor 3 is positioned at the top of generator external stator 1 and generator internal stator 2; During use, prime mover rotor is contained in one end of armature spindle 4, and rotor 3 is contained in the other end of armature spindle 4, and prime mover rotor is synchronizeed rotation with rotor 3 and armature spindle 4; The other end of armature spindle 4 extend out to outside by the centre bore of generator internal stator 2, suit fan blade.
Permanent-magnetic clamp 6 described in the utility model, is permanent-magnetic clamp of the prior art, and the magnetizing direction of permanent-magnetic clamp described in the utility model is radial magnetizing.
On generator external stator 1, be evenly provided with three generator external stator salient pole 1-1, three generator external stator salient pole 1-1 are positioned on same circumference; Between every adjacent two generator external stator salient pole 1-1, be generator external stator salient pole groove 1-2, the shape of described generator external stator salient pole groove 1-2 is identical with the shape of generator external stator salient pole 1-1; On three generator external stator salient pole 1-1, be all wound with generator external armature winding 7; As shown in Figure 2.
On generator internal stator 2, be evenly provided with three generator internal stator salient pole 2-1, described three generator internal stator salient pole 2-1 are positioned on same circumference; Between described every adjacent two generating internal stator salient pole 2-1 centers, be salient pole groove 2-2 in generator internal stator, in described generator internal stator, the shape of salient pole groove 2-2 is identical with the shape of generator internal stator salient pole 2-1; On three generator internal stator salient pole 2-1, be all wound with armature winding 5 in generator; Aforementioned three generator external stator salient pole 1-1 and three generator internal stator salient pole 2-1 are positioned at same plane;
Rotor 3 is provided with external rotor salient pole group and internal rotor salient pole group; Described external rotor salient pole group is corresponding with generator external stator salient pole 1-1; Described internal rotor salient pole group is corresponding with generator internal stator salient pole 2-1;
External rotor salient pole group comprises two external rotor salient poles 8; Described two external rotor salient poles 8 are evenly arranged on rotor 3, and are positioned on same circumference; Described two external rotor salient poles 8 are corresponding with three generator external stator salient pole 1-1, between two external rotor salient poles 8 and three generator external stator salient pole 1-1, leave the first gap 10;
Internal rotor salient pole group comprises two internal rotor salient poles 9, and described two internal rotor salient poles 9 are evenly arranged on rotor 3, and are positioned on same circumference; Two internal rotor salient poles 9 are corresponding with three generator internal stator salient pole 2-1, and leave the second gap 11 between two internal rotor salient poles 9 and three generator internal stator salient pole 2-1; The first gap 10 equates with the second gap 11; Described two external rotor salient poles 8 and two internal rotor salient poles 9 are positioned at same plane; The diameter of the circumference at described two external rotor salient pole 8 places is greater than the diameter of the circumference at described two internal rotor salient pole 9 places.
The shape of generator external stator salient pole 1-1 described in the utility model, generator internal stator salient pole 2-1, external rotor salient pole 8 and internal rotor salient pole 9 adopt any shape can, the utility model preferentially adopts fan-shaped.
In order to have higher power density, the first gap described in the utility model and the second gap are preferably 0.3-1.5mm.
Operation principle of the present utility model:
While adopting the utility model generating, prime mover rotor driven axle 4 and rotor 3 rotations, existence due to the external rotor salient pole group on rotor 3 and internal rotor salient pole group, during rotor 3 rotation, can cause the magnetic flux size of the interior armature winding 5 of generator and generator external armature winding 7 to change, thereby in generator, in armature winding 5 and generator external armature winding 7, induce induced electromotive force, the size of induced electromotive force is relevant with the rotating speed of rotor 3.
The utility model does not relate to part and all communicates with prior art or adopt prior art to be realized.
Claims (3)
1. a novel axial magnetic flux doubly salient permanent magnet generator, is characterized in that: comprise rotor (3), generator external stator (1), generator internal stator (2), permanent-magnetic clamp (6) and armature spindle (4); Described generator internal stator (2) is nested in generator external stator (1), between generator internal stator (2) and generator external stator (1), leaves gap; Described permanent-magnetic clamp (6) is installed in aforementioned gap; Armature spindle (4) is arranged on the center of rotor (3), and fixing as a whole; Described armature spindle (4) penetrates the center of generator internal stator (2), and does not contact with generator internal stator (2); Described rotor (3) is positioned at the top of generator external stator (1) and generator internal stator (2);
On described generator external stator (1), be evenly provided with three generator external stator salient poles (1-1), described three generator external stator salient poles (1-1) are positioned on same circumference; Between described every adjacent two generator external stator salient poles (1-1), be generator external stator salient pole groove (1-2), the shape of described generator external stator salient pole groove (1-2) is identical with the shape of generator external stator salient pole (1-1); On described three generator external stator salient poles (1-1), be all wound with generator external armature winding (7);
On described generator internal stator (2), be evenly provided with three generator internal stator salient poles (2-1), described three generator internal stator salient poles (2-1) are positioned on same circumference; Described every adjacent two generating internal stator salient poles (2-1) are salient pole groove (2-2) in generator internal stator between center, and in described generator internal stator, the shape of salient pole groove (2-2) is identical with the shape of generator internal stator salient pole (2-1); On described three generator internal stator salient poles (2-1), be all wound with armature winding (5) in generator;
Aforementioned three generator external stator salient poles (1-1) and three generator internal stator salient poles (2-1) are positioned at same plane;
Described rotor (3) is provided with external rotor salient pole group and internal rotor salient pole group; Described external rotor salient pole group is corresponding with generator external stator salient pole (1-1); Described internal rotor salient pole group is corresponding with generator internal stator salient pole (2-1);
Described external rotor salient pole group comprises two external rotor salient poles (8); It is upper that described two external rotor salient poles (8) are evenly arranged on rotor (3), and be positioned on same circumference; Described two external rotor salient poles (8) are corresponding with three generator external stator salient poles (1-1), between two external rotor salient poles (8) and three generator external stator salient poles (1-1), leave the first gap (10);
Described internal rotor salient pole group comprises two internal rotor salient poles (9), and it is upper that described two internal rotor salient poles (9) are evenly arranged on rotor (3), and be positioned on same circumference; Described two internal rotor salient poles (9) are corresponding with three generator internal stator salient poles (2-1), and leave the second gap (11) between two internal rotor salient poles (9) and three generator internal stator salient poles (2-1); Described the first gap (10) equates with the second gap (11); Described two external rotor salient poles (8) and two internal rotor salient poles (9) are positioned at same plane; The diameter of the circumference at described two external rotor salient poles (8) place is greater than the diameter of the circumference at described two internal rotor salient poles (9) place.
2. novel axial magnetic flux doubly salient permanent magnet generator as claimed in claim 1, is characterized in that: the shape of described generator external stator salient pole (1-1), generator internal stator salient pole (2-1), external rotor salient pole (8) and internal rotor salient pole (9) is fan-shaped.
3. novel axial magnetic flux doubly salient permanent magnet generator as claimed in claim 1, is characterized in that: the first gap and the second gap are 0.3-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420173320.2U CN203859652U (en) | 2014-04-10 | 2014-04-10 | Novel axial-magnetic-flux doubly-salient permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420173320.2U CN203859652U (en) | 2014-04-10 | 2014-04-10 | Novel axial-magnetic-flux doubly-salient permanent magnet generator |
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| Publication Number | Publication Date |
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| CN203859652U true CN203859652U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420173320.2U Withdrawn - After Issue CN203859652U (en) | 2014-04-10 | 2014-04-10 | Novel axial-magnetic-flux doubly-salient permanent magnet generator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915961A (en) * | 2014-04-10 | 2014-07-09 | 南京工业大学 | Novel axial magnetic flux double-salient permanent magnet generator |
| CN106712421A (en) * | 2016-12-16 | 2017-05-24 | 中工科安科技有限公司 | Dial switch reluctance motor and design method thereof for improving torque |
| CN111884364A (en) * | 2019-11-22 | 2020-11-03 | 山东精创磁电产业技术研究院有限公司 | Stator-rotor assembly and axial magnetic field motor |
| WO2020253847A1 (en) * | 2019-06-21 | 2020-12-24 | 侯唯敏 | Motor and device comprising the motor |
-
2014
- 2014-04-10 CN CN201420173320.2U patent/CN203859652U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915961A (en) * | 2014-04-10 | 2014-07-09 | 南京工业大学 | Novel axial magnetic flux double-salient permanent magnet generator |
| CN103915961B (en) * | 2014-04-10 | 2016-02-10 | 南京工业大学 | A kind of axial magnetic flux double-salient-pole permanent magnet generator |
| CN106712421A (en) * | 2016-12-16 | 2017-05-24 | 中工科安科技有限公司 | Dial switch reluctance motor and design method thereof for improving torque |
| CN106712421B (en) * | 2016-12-16 | 2023-10-27 | 中工科安科技有限公司 | Disc type switch reluctance motor and design method for improving torque thereof |
| WO2020253847A1 (en) * | 2019-06-21 | 2020-12-24 | 侯唯敏 | Motor and device comprising the motor |
| CN111884364A (en) * | 2019-11-22 | 2020-11-03 | 山东精创磁电产业技术研究院有限公司 | Stator-rotor assembly and axial magnetic field motor |
| CN111884364B (en) * | 2019-11-22 | 2021-05-07 | 山东精创磁电产业技术研究院有限公司 | Stator-rotor assembly and axial magnetic field motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141001 Effective date of abandoning: 20160210 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |