CN203151346U - Rare-earth permanent magnet generator - Google Patents
Rare-earth permanent magnet generator Download PDFInfo
- Publication number
- CN203151346U CN203151346U CN 201320175566 CN201320175566U CN203151346U CN 203151346 U CN203151346 U CN 203151346U CN 201320175566 CN201320175566 CN 201320175566 CN 201320175566 U CN201320175566 U CN 201320175566U CN 203151346 U CN203151346 U CN 203151346U
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- Prior art keywords
- earth permanent
- rotor
- rare
- generator
- permanent magnet
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 28
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims description 7
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 229910001172 neodymium magnet Inorganic materials 0.000 abstract description 4
- 239000000696 magnetic material Substances 0.000 abstract description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 1
- 230000033228 biological regulation Effects 0.000 description 10
- 230000005284 excitation Effects 0.000 description 5
- 230000004907 flux Effects 0.000 description 3
- 229910052775 Thulium Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model discloses a rare-earth permanent magnet generator. The rare-earth permanent magnet generator comprises a generator shell, a rotor comprising a rotor shaft arranged at the middle part of the shell, and a rotor magnetic yoke connected to the rotary shaft, wherein magnetic steel is connected with the rotor magnetic yoke via a non-magnetic material, and the rotor magnetic yoke, the non-magnetic material and the magnetic steel are tightly pressed and fixed by a magnetic steel press plate. The rare-earth permanent magnet generator further comprises a stator, wherein the stator is embedded on the generator shell, and comprises a plurality of stator iron cores, and a stator winding which winds the stator iron cores. According to the rare-earth permanent magnet generator, the structural mode of the rotor is changed, and a rare-earth permanent magnet material, namely, neodymium-iron-boron (NdFeB) magnetic steel is adopted; simultaneously, the rotor is formed by a tangential magnetism-gathering mode, and magnetic circuits are formed in parallel; the generator does not need a pressure-regulating device, and the no-load voltage and the rated load voltage are basically unchanged under a rated resistive load, and superior to the no-load voltage and the rated load voltage of similar rare-earth permanent magnet synchronous generators, and the difference between the no-load voltage and the rated load voltage of the similar rare-earth permanent magnet synchronous generators is 15-22 V; and the steady-state regulating rate of the rare-earth generator is increased.
Description
Technical field
The utility model relates to generator, is specifically related to rare earth permanent-magnetic generator.
Background technology
Well-known traditional electric excitation generator is formed with rotor, stator, be wound with magnet exciting coil on the rotor yoke, magnet exciting coil is through electric brush slip ring and AVR(automatic voltage regulator) link to each other, AVR passes to excitation source generation direct current makes rotor coil produce magnetic field, magnetic field when rotated, the armature coil of cutting stator produces induced potential.
Traditional electric excitation generator, volume is big, and weight is big, and slip-ring brush is arranged, and efficient is low, produces electromagnetic interference.When load variations, the adjusting of voltage will be carried out pressure regulation by AVR, so fault is many.The adjusting of rare earth permanent-magnetic generator voltage becomes a bottleneck of restriction magneto alternator development, and existing rare earth permanent magnet synchronous generator voltage-regulation one is that series capacitance is regulated; The 2nd, utilize the converter pressure regulation of power electronics; The 3rd, the compound rectifier excitation pressure regulation.More than three kinds of pressure regulation all have optional equipment, drawback such as fault is many.
The utility model content
At the above-mentioned defective that exists in the prior art, the technical problems to be solved in the utility model is the version that changes rotor, adopts rare earth permanent-magnetic material neodymium iron boron (NdFeB) magnet steel.Simultaneously, as rotor, magnetic circuit occurs with parallel connection with tangential poly-magnetic form.Generator need not regulator and reaches under specified resistive load floating voltage and the basic no change of nominal load voltage.This is better than similar rare earth permanent magnet synchronous generator, similar rare earth permanent magnet synchronous generator floating voltage and nominal load voltage phase difference 15V～22V.Improved rare-earth generator stable state regulation.
For achieving the above object, the technical solution of the utility model is as follows: comprising:
Rare earth permanent-magnetic generator comprises:
One generator housing,
One rotor comprises the armature spindle that the housing middle part is set, and connects the rotor yoke on the armature spindle, and magnet steel connects rotor yoke by nonmagnetic substance, and adopts the magnet steel pressing plate that rotor yoke, nonmagnetic substance and magnet steel are fixed,
One stator is embedded on the generator housing, comprises several stator cores, twines the stator winding of stator core.
In a preferred embodiment of the present utility model, described generator housing is by front end housing, and body and rear end cap constitute,
Front end housing one side arranges a fan, and wind scooper is stamped in the rear end, and in the armature spindle rotation process, ventilation and heat is carried out in fan and wind scooper acting in conjunction.
In a preferred embodiment of the present utility model, described armature spindle is provided with tapering, is used for cooperating with the output shaft of engine.
In a preferred embodiment of the present utility model, described rotor is formed by the thick silicon steel plate stacking of 0.5mm, and dashing above has uniform eddy current guide hole.
In a preferred embodiment of the present utility model, described stator core selects for use the thick silicon steel sheet of 0.5mm to be formed by stacking, and dashing above has 36 grooves, and groove is embedded with three-phase symmetric winding.
In a preferred embodiment of the present utility model, adopt double-deck short square winding on the described stator winding.
By technique scheme, the beneficial effects of the utility model are:
(1) changed the magnetic structure of rotor.It is compared with the radially magnetic circuit of present rare earth permanent-magnetic generator industry, and it has improved the air gap flux density of generator, and is few with magnet, compares with the traditional electrical excitation electromotor, and it is in light weight, and volume is little, efficient height, no slip-ring brush, no AVR voltage regulator.
(2) stator winding adopts double-deck waveform winding, has improved the waveform of output voltage, has reduced the harmonic wave total amount,
(3) by the design of tangential magnetic circuit, when load variations, generator voltage is stable, and during nominal load, the steady state voltage regulation is about 1%.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is cutaway view of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Shown in seeing figures.1.and.2, rare earth permanent-magnetic generator comprises:
One generator housing 1, generator housing are by front end housing 101, and body 102 and rear end cap 103 constitute,
One rotor 2 comprises the armature spindle 201 that the housing middle part is set, and connects the rotor yoke 202 on the armature spindle 201, and magnet steel 203 connects rotor yoke 202 by nonmagnetic substance 204,
Rotor is whole to be to form with the thick silicon steel plate stacking of 0.5mm, dash above uniform eddy current guide hole is arranged, rotor is embedded with thulium permanent magnet, isolate with nonmagnetic substance for preventing the magnetic circuit short circuit, be armature spindle in the middle of the rotor, armature spindle 201 connects together rotor yoke 202, nonmagnetic substance 204 and thulium permanent magnet and is fixed with pressing plate 205.
One stator 3 is embedded on the generator housing 1, comprises several stator cores 301, twines the stator winding 302 of stator core 301.The magneto alternator stator structure is identical with induction motor.For reducing eddy current loss and the magnetic hysteresis loss that magnetic field causes, stator core selects for use the thick silicon steel sheet of 0.5mm to be formed by stacking, and dashing above has 36 grooves, and groove is embedded with three-phase symmetric winding.Stator winding adopts double-deck short distance and star connection for reducing stray loss.
Overall structure is with bolt stator and rotor to be fixed in the front and rear cover 101,103, and front end housing 101 links to each other with engine, in fan 4 is arranged, rear end cap 103 has wind scooper 5, works together to carry out ventilation and heat.Armature spindle 201 has tapering, can cooperate in the output shaft of engine.The rotation of engine rotation generator amature.Generator output voltage and working.
The utility model improves the tangential rotor structure, the direction of magnetization of permanent magnet and air-gap flux axis near vertical and from air gap away from, its leakage field is bigger than radial structure, in tangential magnetization configuration, permanent magnet is magnetized state in parallel, rare earth permanent magnet is high remanent magnetism, high-coercive force, the 35UH magnet steel of high energy product.Provide every utmost point magnetic flux quantity of magnetism of generator to increase by two rare-earth permanent magnets, and improve air gap density, especially under the many situations of number of poles, more outstanding.
The improvement of rotor structure adds the matching design of stator winding the motor properties parameter to be improved.Adopt the design of plough type groove, skewed stator slot notch in order to improve the voltage harmonic stator slot.And at the double-deck short square winding of stator winding employing.
Performance parameter:
Rated voltage 230/400
Power: 10KW
Frequency: 50HZ
Electric current: 18A
Power factor: 0.95
Rotating speed: 3000 change
The number of phases: 3 phases
Steady state voltage regulation :≤± 1% voltage settling time :≤1S
Transient voltage regulation :≤± 10% voltage fluctuation rate :≤0.5%
Steady frequency regulation :≤5% frequency settling time :≤3S
Instantaneous frequency regulation :≤7% frequency fluctuation rate :≤0.5%
Voltage-form distortion rate :≤3.8%
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. rare earth permanent-magnetic generator is characterized in that, comprising:
One generator housing,
One rotor comprises the armature spindle that the housing middle part is set, and connects the rotor yoke on the armature spindle, and magnet steel connects rotor yoke by nonmagnetic substance, and adopts the magnet steel pressing plate that rotor yoke, nonmagnetic substance and magnet steel are fixed,
One stator is embedded on the generator housing, comprises several stator cores, twines the stator winding of stator core.
2. rare earth permanent-magnetic generator according to claim 1 is characterized in that: described generator housing is by front end housing, and body and rear end cap constitute,
Front end housing one side arranges a fan, and wind scooper is stamped in the rear end, and in the armature spindle rotation process, ventilation and heat is carried out in fan and wind scooper acting in conjunction.
3. rare earth permanent-magnetic generator according to claim 1, it is characterized in that: described armature spindle is provided with tapering, is used for cooperating with the output shaft of engine.
4. rare earth permanent-magnetic generator according to claim 1, it is characterized in that: described rotor is formed by the thick silicon steel plate stacking of 0.5mm, and dashing above has uniform eddy current guide hole.
5. rare earth permanent-magnetic generator according to claim 1, it is characterized in that: described stator core selects for use the thick silicon steel sheet of 0.5mm to be formed by stacking, and dashing above has 36 grooves, and groove is embedded with three-phase symmetric winding.
6. rare earth permanent-magnetic generator according to claim 1 is characterized in that: adopt double-deck short square winding on the described stator winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175566 CN203151346U (en) | 2013-04-09 | 2013-04-09 | Rare-earth permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175566 CN203151346U (en) | 2013-04-09 | 2013-04-09 | Rare-earth permanent magnet generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203151346U true CN203151346U (en) | 2013-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320175566 Expired - Lifetime CN203151346U (en) | 2013-04-09 | 2013-04-09 | Rare-earth permanent magnet generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203151346U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454302A (en) * | 2014-11-05 | 2015-03-25 | 武汉包尼喜科技有限公司 | High-rise rainwater collection device |
| CN110571999A (en) * | 2019-08-26 | 2019-12-13 | 江苏东方康弛机电科技有限公司 | Small permanent magnet generator |
| CN116670973A (en) * | 2020-11-05 | 2023-08-29 | 伊恩运动美国有限责任公司 | Generator for driving a predefined load |
-
2013
- 2013-04-09 CN CN 201320175566 patent/CN203151346U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454302A (en) * | 2014-11-05 | 2015-03-25 | 武汉包尼喜科技有限公司 | High-rise rainwater collection device |
| CN110571999A (en) * | 2019-08-26 | 2019-12-13 | 江苏东方康弛机电科技有限公司 | Small permanent magnet generator |
| CN116670973A (en) * | 2020-11-05 | 2023-08-29 | 伊恩运动美国有限责任公司 | Generator for driving a predefined load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Shaft belt type rare earth permanent-magnetic generator Effective date of registration: 20150804 Granted publication date: 20130821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN JIAZHONG ELECTRON TECHNOLOGY Co.,Ltd. Registration number: 2015990000638 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160801 Granted publication date: 20130821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN JIAZHONG ELECTRON TECHNOLOGY Co.,Ltd. Registration number: 2015990000638 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Shaft belt type rare earth permanent-magnetic generator Effective date of registration: 20160801 Granted publication date: 20130821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN JIAZHONG ELECTRON TECHNOLOGY Co.,Ltd. Registration number: 2016990000663 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170714 Granted publication date: 20130821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN JIAZHONG ELECTRON TECHNOLOGY Co.,Ltd. Registration number: 2016990000663 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rare earth permanent magnet generator Effective date of registration: 20200814 Granted publication date: 20130821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN JIAZHONG ELECTRON TECHNOLOGY Co.,Ltd. Registration number: Y2020990000961 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210527 Granted publication date: 20130821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN JIAZHONG ELECTRON TECHNOLOGY Co.,Ltd. Registration number: Y2020990000961 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rare earth permanent magnet generator Effective date of registration: 20210818 Granted publication date: 20130821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN JIAZHONG ELECTRON TECHNOLOGY Co.,Ltd. Registration number: Y2021990000733 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
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| CX01 | Expiry of patent term | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230713 Granted publication date: 20130821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN JIAZHONG ELECTRON TECHNOLOGY Co.,Ltd. Registration number: Y2021990000733 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |