CN102983644A - Unequal interval symmetrical ventilating ducts for stators and rotors of air and water-cooled wind driven generator - Google Patents

Unequal interval symmetrical ventilating ducts for stators and rotors of air and water-cooled wind driven generator Download PDF

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Publication number
CN102983644A
CN102983644A CN2012104899012A CN201210489901A CN102983644A CN 102983644 A CN102983644 A CN 102983644A CN 2012104899012 A CN2012104899012 A CN 2012104899012A CN 201210489901 A CN201210489901 A CN 201210489901A CN 102983644 A CN102983644 A CN 102983644A
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CN
China
Prior art keywords
stators
rotors
iron cores
ventilating ducts
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012104899012A
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Chinese (zh)
Inventor
杨连春
贾永波
滕强
梁君声
陈福海
刘永正
孔凡杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DALIAN TIANYUAN ELECTRICAL MACHINERY Co Ltd
Original Assignee
DALIAN TIANYUAN ELECTRICAL MACHINERY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DALIAN TIANYUAN ELECTRICAL MACHINERY Co Ltd filed Critical DALIAN TIANYUAN ELECTRICAL MACHINERY Co Ltd
Priority to CN2012104899012A priority Critical patent/CN102983644A/en
Publication of CN102983644A publication Critical patent/CN102983644A/en
Pending legal-status Critical Current

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Abstract

The invention discloses unequal interval symmetrical ventilating ducts for stators and rotors of an air and water-cooled wind driven generator. Iron cores of stators and iron cores of rotors are in a segmented press fitting structure, lengths of all segments of iron cores are symmetrically distributed in such a way that lengths are shortened gradually from end portions to middle portions, ventilating groove plates are arranged among adjacent iron cores to form ventilating ducts, widths of ventilating ducts for stators and rotors are consistent, and ventilating ducts are aligned after iron cores of stators and rotors are mounted in a pressing mode. The unequal interval symmetrical ventilating ducts have the advantages that the unequal interval symmetrical ventilating duct structure is adopted, so that the heat exchange capability of middle portions of iron cores, which is poor originally, is greatly improved, and the problems that original iron cores are uneven in temperature distribution in axis directions and the temperature of middle portions is too high are solved.

Description

The symmetrical air duct of air water cooling stator and rotor of wind power generator unequal-interval
Technical field
The present invention relates to high-power generator stator-rotor iron core aeration structure, belong to the generator designs field, be specifically related to the symmetrical air duct of a kind of air water cooling stator and rotor of wind power generator unequal-interval.
Background technology
Common rotor winding formula motor is because power density is relatively not high, the iron core draw ratio is less than 1, rotating speed is lower, adopt traditional one-sided centrifugal fan to form hybrid cooling air duct, what the employing of core ventilation road was conventional equidistantly can satisfy the heat exchange requirement, and high-power wind-driven generator has strict demand to volume and weight, so that power of motor density is very high, the little seat No. of motor is exported large capacity, so that the iron core draw ratio is much larger than 1, the blower fan rated speed is high in addition, and excursion is wide, and traditional core ventilation road design can't be suitable for such instructions for use.
Summary of the invention
The object of the invention is to overcome above-mentioned not enough problem, provide a kind of air water cooling stator and rotor of wind power generator unequal-interval symmetrical air duct.
The technical scheme that the present invention adopts for achieving the above object is: the symmetrical air duct of air water cooling stator and rotor of wind power generator unequal-interval, the iron core of rotor all adopts the segmented press mounting structure, and the length of every iron leg core is successively decreased symmetrical by end to centre gradually, be provided with ventilation channel plate between the adjacent iron core to form air duct, the air duct width of rotor is consistent, and the iron core of rotor press-fits the alignment of rear venting road.
Characteristics of the present invention are: adopt the symmetrical air duct structure of unequal-interval, the relatively poor iron core middle part exchange capability of heat of script effect is improved greatly, solved originally iron core axis direction temperature distributing disproportionation, the difficult problem of middle part excess Temperature.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is use schematic diagram of the present invention.
Wherein: 1, iron core 2, ventilation channel plate.
Embodiment
Such as Fig. 1, shown in 2, the present invention is the symmetrical air duct of air water cooling stator and rotor of wind power generator unequal-interval, the iron core 1 of rotor all adopts the segmented press mounting structure, and the length of every iron leg core 1 is successively decreased symmetrical by end to centre gradually, be provided with ventilation channel plate 2 between the adjacent iron core 1 to form radial ducts, the air duct width of rotor is consistent, the iron core 1 of rotor press-fits the alignment of rear venting road, afterwards again through rolling off the production line, dipping lacquer, the operations such as assembling are finished the generator general assembly, the inner radially wind path that forms symmetry during generator operation, when cooling-air enters the iron core 1 of rotor, owing to adopted the symmetrical aeration structure of rotor unequal-interval that iron core 1 middle part heat exchange is strengthened, be conducive to the consistent of iron core 1 length direction temperature, reduce the temperature rise of coil high-temperature region, strengthen the electrical machine insulation reliability, guarantee generator operation steady in a long-term.
The above; only be the better embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.

Claims (1)

1. the symmetrical air duct of air water cooling stator and rotor of wind power generator unequal-interval, it is characterized in that: the iron core of rotor (1) all adopts the segmented press mounting structure, and the length of every iron leg core (1) is successively decreased symmetrical by end to centre gradually, be provided with ventilation channel plate (2) between the adjacent iron core (1) to form air duct, the air duct width of rotor is consistent, and the iron core of rotor (1) press-fits the alignment of rear venting road.
CN2012104899012A 2012-11-27 2012-11-27 Unequal interval symmetrical ventilating ducts for stators and rotors of air and water-cooled wind driven generator Pending CN102983644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104899012A CN102983644A (en) 2012-11-27 2012-11-27 Unequal interval symmetrical ventilating ducts for stators and rotors of air and water-cooled wind driven generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104899012A CN102983644A (en) 2012-11-27 2012-11-27 Unequal interval symmetrical ventilating ducts for stators and rotors of air and water-cooled wind driven generator

Publications (1)

Publication Number Publication Date
CN102983644A true CN102983644A (en) 2013-03-20

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Family Applications (1)

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CN2012104899012A Pending CN102983644A (en) 2012-11-27 2012-11-27 Unequal interval symmetrical ventilating ducts for stators and rotors of air and water-cooled wind driven generator

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103701238A (en) * 2013-12-12 2014-04-02 大连天元电机股份有限公司 Self-circulating heat dissipating device of 5MW doubly-fed air-cooled and water-cooled wind generator
CN106877574A (en) * 2017-04-13 2017-06-20 哈尔滨理工大学 A kind of squirrel-cage motor inverted ventilation method
CN111799910A (en) * 2020-06-11 2020-10-20 上海马拉松·革新电气有限公司 Method for setting rotor heat dissipation structure of salient pole type generator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1882487A (en) * 1929-10-19 1932-10-11 Dupont Joseph Axial ventilating device for the stators of electric machines
CN2809541Y (en) * 2005-06-23 2006-08-23 徐南南 Drying drum for drying multi-form fiber-like material
CN101227110A (en) * 2007-01-15 2008-07-23 株式会社日立制作所 Forced cooling rotary electric machine
CN102570652A (en) * 2012-01-17 2012-07-11 重庆軎门特机电制造有限公司 Motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1882487A (en) * 1929-10-19 1932-10-11 Dupont Joseph Axial ventilating device for the stators of electric machines
CN2809541Y (en) * 2005-06-23 2006-08-23 徐南南 Drying drum for drying multi-form fiber-like material
CN101227110A (en) * 2007-01-15 2008-07-23 株式会社日立制作所 Forced cooling rotary electric machine
CN102570652A (en) * 2012-01-17 2012-07-11 重庆軎门特机电制造有限公司 Motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103701238A (en) * 2013-12-12 2014-04-02 大连天元电机股份有限公司 Self-circulating heat dissipating device of 5MW doubly-fed air-cooled and water-cooled wind generator
CN106877574A (en) * 2017-04-13 2017-06-20 哈尔滨理工大学 A kind of squirrel-cage motor inverted ventilation method
CN111799910A (en) * 2020-06-11 2020-10-20 上海马拉松·革新电气有限公司 Method for setting rotor heat dissipation structure of salient pole type generator

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Application publication date: 20130320