CN202127344U - Embedded closed-slot permanent magnet synchronous generator - Google Patents
Embedded closed-slot permanent magnet synchronous generator Download PDFInfo
- Publication number
- CN202127344U CN202127344U CN2011200107049U CN201120010704U CN202127344U CN 202127344 U CN202127344 U CN 202127344U CN 2011200107049 U CN2011200107049 U CN 2011200107049U CN 201120010704 U CN201120010704 U CN 201120010704U CN 202127344 U CN202127344 U CN 202127344U
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- Prior art keywords
- rotor
- stator
- permanent magnet
- synchronous generator
- magnet synchronous
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- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses an embedded closed-slot permanent magnet synchronous generator which comprises a rotor and a stator. The rotor and the stator are coaxially arranged, and the rotor is arranged in the stator; a plurality of permanent magnets are arranged on the surface of the rotor, and a rotor shaft is arranged in the rotor; a stator winding is arranged on the stator, and the stator is in a separated structure; the slots among the teeth of the stator are closed; a plurality of through holes are annularly arrayed on the punching sheet of the iron core of the rotor; the permanent magnets of corresponding number are arranged in the through holes and in close contact with the inner walls of the through holes; the axial cross sections of the permanent magnets are shaped like rectangles, and the upper ends of the radial cross sections of the permanent magnets are shaped like circular arcs; the punching sheet of the iron core of the rotor is provided with a plurality of small holes, and the number of the small holes is the same as the number of the permanent magnets; the small holes are uniformly arranged on the inner sides of the corresponding permanent magnets along the circumference of the rotor; and the iron core of the rotor is in a sectional structure and is axially divided into 2 to 10 sections. The utility model solves the problem of starting resistance torque caused by turning torque of the slots and avoids the occurrence of slot effect.
Description
[technical field]
The utility model relates to the small-sized wind power generator field, more particularly, relates to the higher wind-driven generator of a kind of system effectiveness.
[background technology]
At present, existing small-sized wind power generator all adopts the rare earth permanent magnet threephase alternator as the conversion links of mechanical energy to electric energy.General generator mainly is made up of stator and rotor two parts.The general employing of stator concentrated winding construction, and permanent magnet adopts Surface Mount or embedded more on the rotor; No matter stator punching is to adopt the one piece punching or cut apart the split mounting type stator structure, all adopt the open slot structure, and notch is generally at 0.5-2.5mm.The existence of notch reduces the leakage inductance of generator; Back electromotive force improves, and the utilance of magnet is higher, can improve the output torque of unit volume in theory; The reason place that but the existence of notch also is the generator slot effect to produce: notch is big more, and the air-gap reluctance that is caused by tooth and groove changes more greatly.Traditional integral type punching must have this link of rule, has determined stator slot must open the notch of suitable size.The defective value of said prior art must improve.
[utility model content]
The purpose of the utility model is to above-mentioned technological deficiency; A kind of Nei Lishi enclose permanent magnet synchronous generator is provided; This a kind of Nei Lishi enclose permanent magnet synchronous generator has solved the resistance of start distance that existing wind powered generator system cogging torque causes, and has avoided the generation of slot effect.
The technical scheme of the utility model is described below: a kind of Nei Lishi enclose permanent magnet synchronous generator; Comprise stator and rotor; Rotor is coaxial and be located in the stator with stator, it is characterized in that said epitrochanterian surface is provided with several permanent magnets; Be provided with armature spindle in the rotor, said stator is provided with stator winding.
According to the utility model of said structure, its characteristic is that also said rotor is connected with armature spindle with positioning key through the keyway that rotor core and armature spindle are provided with.
According to the utility model of said structure, its characteristic is that also said stator is an isolating construction, and the notch between each tooth of formation stator is a closed form.
According to the utility model of said structure, its characteristic is that also ring array is shown several through holes on the said rotor-core lamination, and the permanent magnet of said respective number is located in this through hole, and inwall fits tightly in the hole.
According to the utility model of said structure, its characteristic is that also ring array is shown eight through holes on the said rotor-core lamination, and said eight permanent magnets are located in this through hole, and inwall fits tightly in the hole.
According to the utility model of said structure, its characteristic is that also the axial cross section of said permanent magnet is shaped as rectangle, and its top edge line of radial section shape is circular-arc.
According to the utility model of said structure, its characteristic also is, has several apertures on the said rotor-core lamination, and the aperture number is identical with the number of permanent magnet, and aperture is inboard along the corresponding water magnet of circumferentially evenly being located at of rotor.
According to the utility model of said structure, its characteristic is that also said rotor core is a segmentation structure, and rotor core is divided into the 2-10 section vertically.
According to the utility model of said structure, its beneficial effect is that the utility model adopts the split mounting type lamination; Realized single tooth mechanization coiling; Increased substantially production efficiency and consistency of product, and because the split mounting type lamination need not whole again punching, thereby the waste of silicon steel material reduced significantly; Can adopt the leftover pieces of traditional punching to process, on material cost, have again so significantly and reduced.The utility model single span formula winding construction since every be the rich sesame of monodentate mutually, do not exist overlapping, thereby avoided phase fault, reduced the requirement of conventional motors to the class of insulation of groove paper and enamelled wire.Simultaneously owing to adopt the single span technology, alternate zero lap has reduced the length of the end line that influences engine efficiency significantly.
[description of drawings]
Fig. 1 is the assembly structure sketch map of the utility model;
Fig. 2 is the utility model stator radial section sketch map;
Fig. 3 is the utility model stator rabbet structural representation;
Fig. 4 is the utility model rotor radial schematic cross-section;
Fig. 5 is the axial cross section sketch map of the utility model permanent magnet;
Fig. 6 is the cross sectional representation of the utility model permanent magnet;
Fig. 7 is the utility model armature spindle structural representation;
Fig. 8 is the utility model rotor structure sketch map.
Stator in the drawings, 1; 2, rotor; 3: the stator tooth punching; 4, notch; 5, aperture; 6, keyway; 7, rotor-core lamination; 8, permanent magnet; 9, key; 10, armature spindle; 11, rotor water magnet; 12, rotor permanent magnet.
[embodiment]
Below in conjunction with accompanying drawing and execution mode the utility model is further described:
Like Fig. 1-shown in Figure 8, a kind of Nei Lishi enclose permanent magnet synchronous generator comprises stator 1 and rotor 2; Rotor 2 and stator 1 are coaxial and be located in the stator 1, it is characterized in that, are provided with several permanent magnets 8 on the said rotor 2; Be provided with armature spindle 10 in the rotor 2, said stator 1 is provided with stator winding, and said stator 1 is an isolating construction; Notch between each tooth of formation stator 1 is closed form, i.e. b0=0.Said rotor 2 is connected with armature spindle 10 with positioning key with the keyway 9 that armature spindle 10 is provided with through the keyway 6 that rotor core is provided with.Said rotor core is overrided to form by a plurality of rotor-core laminations, and ring array is shown several through holes on the said rotor-core lamination 7, and the permanent magnet 4 of said respective number is located in this through hole; And fit tightly in through-hole wall; Ring array is shown eight through holes on the concrete said rotor-core lamination 7, and said eight permanent magnets 4 are located in this through hole, and inwall fits tightly in the hole; The axial cross section of said permanent magnet 4 is shaped as rectangle, and its top edge line of radial section shape is circular-arc.Have several apertures 5 on the said rotor-core lamination 7, aperture 5 numbers are identical with the number of permanent magnet 4, and aperture 5 circumferentially evenly is located at corresponding permanent magnet 4 inboards along rotor.Said rotor 1 is a segmentation structure, and rotor 1 is divided into the 2-10 section vertically, and is as shown in Figure 8, and rotor core is divided into 2 sections vertically, and the angle of dislocation between two sections relies on the keyway of rotor core to fix, and the cross sectional shape of 2 sections rotor cores is identical, and the axle center is identical; The angle of each section rotor core circumferential misalignment is 7.5 degree.
Claims (8)
1. Yi Zhong Nei Lishi enclose permanent magnet synchronous generator; Comprise stator and rotor, rotor is coaxial and be located in the stator with stator, and it is characterized in that: said epitrochanterian surface is provided with several permanent magnets; Be provided with armature spindle in the rotor, said stator is provided with stator winding.
2. a kind of Nei Lishi enclose permanent magnet synchronous generator according to claim 1, its characteristic also is: said rotor is connected with armature spindle with positioning key through the keyway that rotor core and armature spindle are provided with.
3. a kind of Nei Lishi enclose permanent magnet synchronous generator according to claim 1, its characteristic also is: said stator is an isolating construction, the notch between each tooth of formation stator is a closed form.
4. a kind of Nei Lishi enclose permanent magnet synchronous generator according to claim 1, its characteristic also is: ring array is shown several through holes on the said rotor-core lamination, and the permanent magnet of said respective number is located in this through hole, and fits tightly with the hole inwall.
5. a kind of Nei Lishi enclose permanent magnet synchronous generator according to claim 4, its characteristic also is: ring array is shown eight through holes on the said rotor-core lamination, and said eight permanent magnets are located in this through hole, and fit tightly with the hole inwall.
6. a kind of Nei Lishi enclose permanent magnet synchronous generator according to claim 1, its characteristic also is: the axial cross section of said permanent magnet is shaped as rectangle, and its top edge line of radial section shape is circular-arc.
7. a kind of Nei Lishi enclose permanent magnet synchronous generator according to claim 1; Its characteristic also is: have several apertures on the said rotor-core lamination; The aperture number is identical with the number of permanent magnet, and aperture is inboard along the corresponding permanent magnet of circumferentially evenly being located at of rotor.
8. a kind of Nei Lishi enclose permanent magnet synchronous generator according to claim 1, its characteristic also is: said rotor core is a segmentation structure, and rotor core is divided into the 2-10 section vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200107049U CN202127344U (en) | 2011-01-14 | 2011-01-14 | Embedded closed-slot permanent magnet synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200107049U CN202127344U (en) | 2011-01-14 | 2011-01-14 | Embedded closed-slot permanent magnet synchronous generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202127344U true CN202127344U (en) | 2012-01-25 |
Family
ID=45490405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200107049U Expired - Fee Related CN202127344U (en) | 2011-01-14 | 2011-01-14 | Embedded closed-slot permanent magnet synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202127344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124124A (en) * | 2013-03-22 | 2013-05-29 | 哈尔滨工业大学 | Shafting-free inner rotor permanent magnetic synchronous motor capable of reducing slot effect |
| CN105099012A (en) * | 2015-09-17 | 2015-11-25 | 上海电机系统节能工程技术研究中心有限公司 | High-performance permanent magnet servo motor |
-
2011
- 2011-01-14 CN CN2011200107049U patent/CN202127344U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124124A (en) * | 2013-03-22 | 2013-05-29 | 哈尔滨工业大学 | Shafting-free inner rotor permanent magnetic synchronous motor capable of reducing slot effect |
| CN105099012A (en) * | 2015-09-17 | 2015-11-25 | 上海电机系统节能工程技术研究中心有限公司 | High-performance permanent magnet servo motor |
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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: 20120125 Termination date: 20150114 |
|
| EXPY | Termination of patent right or utility model |