CN202111543U - Salient pole type rotor iron core of three-phase brushless alternating-current generator - Google Patents
Salient pole type rotor iron core of three-phase brushless alternating-current generator Download PDFInfo
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- CN202111543U CN202111543U CN2011202124994U CN201120212499U CN202111543U CN 202111543 U CN202111543 U CN 202111543U CN 2011202124994 U CN2011202124994 U CN 2011202124994U CN 201120212499 U CN201120212499 U CN 201120212499U CN 202111543 U CN202111543 U CN 202111543U
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- iron core
- rotor
- phase brushless
- salient pole
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000004080 punching Methods 0.000 claims abstract description 19
- 238000010030 laminating Methods 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 7
- 230000010354 integration Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229910000976 Electrical steel Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003464 cuspid Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A salient pole type rotor iron core of a three-phase brushless alternating-current generator relates to a generator structure and solves the problems of high consumption of materials, complicated processing and poor performances of an existing rotor iron core. A plurality of rotor punching sheets formed by integrally punching magnetic yoke sections and magnetic pole sections are stacked to form an integrated structure of the iron core, the technology of the iron core is simple, secondary air gaps generated by a tilt pole structure are eliminated, and high order harmonics are reduced greatly. The salient pole type rotor iron core in the structure is stable, usage of main materials including silicon steel sheets, varnished wires and the like is reduced, production cost is reduced, stable running of the three-phase brushless alternating-current generator is guaranteed, and integral performance of the generator is improved. Besides, the salient pole type rotor iron core is suitable for six-pole three-phase brushless alternating-current generators with power ranging from 200kw to 500kw.
Description
Technical field
The utility model relates to electric generator structure, refers in particular to a kind of structure of three-phase brushless alternating current generator salient pole rotor iron core.
Background technology
The excitation mode of existing 200～500KW-6P (6 utmost point) three-phase brushless alternating current generator is that brushless controllable silicon is directly encouraged, absolute damping, stator H level, rotor H level.Adopt the dual bearing structure type, 12 leading-out ends of stator lead-out wire can use two kinds of frequencies through changing, and four kinds of power under four kinds of voltages, and can be made monophase machine and use.Existing generator rotor structure can be divided into two kinds of hidden pole type and salient pole types.
The core structure of distributed polar rotor is as shown in Figure 1, and rotor 11 is cylindrical, has several groove groups on the surface of rotor 11; A groove group is a utmost point, and each groove group is made up of several grooves 12, to lay the DC excitation winding; And be fixed to tightly with metallic channel, make motor have uniform air gap.Because huge centrifugal force during high speed rotating requires rotor that very high mechanical strength must be arranged.The flute profile of this distributed polar rotor is generally opening shape, with the convenient excitation winding of installing.There is 1/3 part not slot approximately in the pole span between per two utmost points, forms canine tooth; Remainder has several narrower grooves 12, is called little tooth.The canine tooth center is the center 13 of rotor magnetic pole.The hidden pole type structure is applicable to few, the fast synchronous machine of number of poles, high material consumption, processed complex.
6 utmost point salient pole rotor iron cores are because number of poles is more; Adopt the integral type punching difficulty that winds the line, therefore 6 utmost point rotor cores version that adopts yoke and magnetic pole two parts independently to process in the market is as shown in Figure 2; 6 magnetic pole 22 punch process independent coiling completion in back well; Rotor yoke 21 usefulness high strength alloy steel monoblocks be swaged into heavy wall barrel-shaped after, its inner and outer round surface of finish turning connects both to form overall structure (shown in Figure 3) with bolt 23 then.This kind structure is high for the concentricity requirement of yoke 21 inside and outside circles, and magnetic pole 22 punching presses also need in pole shoe Surface Machining bolts assemblies hole after freezing, and processing technology is complicated, processing is consuming time many.In addition, because magnetic pole 22 connects for bolt 23 sleds with yoke 21, between can form the secondary air gap, influences the magnetic circuit operation; And the pole shoe surface makes air gap inequality between rotor according to the different a plurality of bolt mounting holes of the processing positions that need of iron core length, causes wave distortion, produces high order harmonic component, influences generator performance.
In sum, all there is high material consumption in the version that existing 200～500KW-6P three-phase brushless alternator rotor iron core adopts, processed complex, and problem such as performance is low has increased product cost, has influenced the market competitiveness of 6 pole generators.
The utility model content
The purpose of the utility model is in order to overcome the problem that prior art exists, to provide a kind of consumptive material few, and processing is simple, and can improve the three-phase brushless alternating current generator salient pole rotor iron core of generator performance.
The purpose of the utility model realizes through following technical scheme:
A kind of three-phase brushless alternating current generator salient pole rotor iron core, it comprises:
Several rotor punchings; Each rotor punching is the disc integration stamped sheet; The centre is provided with the disc centre hole, and the disk periphery part evenly is provided with 6 breach, forms a magnetic pole section between per 2 breach; Position between the outer ring in the disc centre hole of disk and the inner ring of periphery is the yoke section, is provided with the damping hole that several quantity are identical, the position is corresponding in the outer ring of each magnetic pole section;
Several damper bars, string is located in each corresponding damping hole of several rotor punchings respectively;
Several rotor punchings that string is established damper bar laminate and are integral formula salient pole rotor iron core; Yoke section after laminating is the yoke of iron core; Magnetic pole section after laminating is the magnetic pole of iron core, and the disc centre hole after laminating is the centre bore of iron core, and the two-end-point solid welding of said damper bar two ends and yoke is fixed.
Several fixed strips of the welded of said each magnetic pole.
The beneficial effect of the utility model:
Compared with prior art; The utility model has improved the overall structure of three-phase brushless alternating current generator salient pole rotor iron core; Employing laminates into several pieces yoke sections and the rotor punching of magnetic pole section full wafer punching out the integrative-structure of iron core; Its technology is simple, and has eliminated the secondary air gap that the sled electrode structure produces, and greatly reduces the generation of high order harmonic component; This core structure has reduced the consumption of main materials such as silicon steel sheet, enamelled wire, has reduced production cost; This core structure is firm, can guarantee the even running of three-phase brushless alternating current generator, has improved the overall performance of generator.The utility model is applicable to 200～500KW-6 utmost point three-phase brushless alternating current generator.
Be above-mentioned purpose, design feature and the effect that further specifies the utility model, below will combine accompanying drawing that the utility model is elaborated.
Description of drawings
Fig. 1 is existing distributed polar rotor core structure sketch map;
Fig. 2 is existing salient pole rotor core structure sketch map (do not install and finish);
Fig. 3 is that Fig. 2 rotor iron core is installed the structural representation of finishing;
Fig. 4 is the salient pole rotor core structure sketch map of the utility model.
Embodiment
Be elaborated below in conjunction with the accompanying drawing of embodiment embodiment to the utility model.
Referring to Fig. 4, the salient pole rotor core structure of the utility model is following:
Several fixed strips 403 of the welded of each magnetic pole 402, core structure is more firm.
Those of ordinary skill in the art will be appreciated that; Above embodiment only is the purpose that is used for explaining the utility model; And be not with the qualification of doing the utility model; As long as in the essential scope of the utility model, in the scope to the variation of the above embodiment, claim that modification all will drop on the utility model.
Claims (2)
1. three-phase brushless alternating current generator salient pole rotor iron core is characterized in that comprising:
Several rotor punchings (41); Each rotor punching (41) is the disc integration stamped sheet; The centre is provided with disc centre hole (411), and the disk periphery part evenly is provided with 6 breach (412), forms a magnetic pole section (413) between per 2 breach (412); Position between the outer ring in the disc centre hole (411) of disk and the inner ring of periphery is yoke section (414), is provided with the damping hole that several quantity are identical, the position is corresponding (415) in the outer ring of each magnetic pole section (413);
Several damper bars (42), string is located in each corresponding damping hole (415) of several rotor punchings (41) respectively;
Several rotor punchings (41) that string is established damper bar (42) laminate and are integral formula salient pole rotor iron core (40); Yoke section (414) after laminating is the yoke of iron core (402); Magnetic pole section (413) after laminating is the magnetic pole of iron core (403); Disc centre hole (411) after laminating is the centre bore of iron core (401), and the two-end-point solid welding of said damper bar (42) two ends and yoke (402) is fixed.
2. as claimed in claim 1, it is characterized in that:
Several fixed strips of welded (404) of said each magnetic pole (403).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202124994U CN202111543U (en) | 2011-06-21 | 2011-06-21 | Salient pole type rotor iron core of three-phase brushless alternating-current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202124994U CN202111543U (en) | 2011-06-21 | 2011-06-21 | Salient pole type rotor iron core of three-phase brushless alternating-current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111543U true CN202111543U (en) | 2012-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202124994U Expired - Fee Related CN202111543U (en) | 2011-06-21 | 2011-06-21 | Salient pole type rotor iron core of three-phase brushless alternating-current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111543U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296801A (en) * | 2013-06-09 | 2013-09-11 | 陈振华 | Novel motor rotor core and machining method thereof |
| CN107404206A (en) * | 2017-09-26 | 2017-11-28 | 上海马拉松·革新电气有限公司 | A kind of coaxial mutually feeding type synchronous motors of 4MW |
| CN108649766A (en) * | 2018-05-17 | 2018-10-12 | 大连创为电机有限公司 | The hybrid synchronous motor of non-salient pole salient pole |
-
2011
- 2011-06-21 CN CN2011202124994U patent/CN202111543U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296801A (en) * | 2013-06-09 | 2013-09-11 | 陈振华 | Novel motor rotor core and machining method thereof |
| CN107404206A (en) * | 2017-09-26 | 2017-11-28 | 上海马拉松·革新电气有限公司 | A kind of coaxial mutually feeding type synchronous motors of 4MW |
| CN107404206B (en) * | 2017-09-26 | 2023-06-20 | 上海马拉松·革新电气有限公司 | 4MW coaxial mutual feed type synchronous motor |
| CN108649766A (en) * | 2018-05-17 | 2018-10-12 | 大连创为电机有限公司 | The hybrid synchronous motor of non-salient pole salient pole |
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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: 20120111 Termination date: 20200621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |