CN201869027U - Ventilation structure of novel megawatt permanent magnet wind driven generator - Google Patents
Ventilation structure of novel megawatt permanent magnet wind driven generator Download PDFInfo
- Publication number
- CN201869027U CN201869027U CN2010206340131U CN201020634013U CN201869027U CN 201869027 U CN201869027 U CN 201869027U CN 2010206340131 U CN2010206340131 U CN 2010206340131U CN 201020634013 U CN201020634013 U CN 201020634013U CN 201869027 U CN201869027 U CN 201869027U
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- arc plate
- wind
- permanent magnet
- support arc
- cooler
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Abstract
The utility model discloses a ventilation structure of a novel megawatt permanent magnet wind driven generator, which relates to the technical field of permanent magnet generators, and comprises a cooler, a cover plate, a clapboard, a base arc plate, rib plates and a stator core, wherein the cooler is arranged at the top of the generator; the cylindrical base arc plate is arranged outside the stator core; the cover plate is arranged outside the base arc plate; the clapboard is arranged between the base arc plate and the cover plate, and separates an area between the base arc plate and the cover plate into two wind areas which are not ventilated with each other; the wind inlet end and the wind outlet end of the cooler are respectively communicated with the cover plate, and are respectively communicated with the two wind areas; a plurality of groups of radial air vents are distributed in the base arc plate along the circumference direction; and a plurality of axial rib plates are installed between the base arc plate and the stator core. The ventilation structure overcomes the defects of the existing ventilation structure, prolongs a wind path and improves the radiating efficiency, so that the temperature rise in the running of the generator can be decreased.
Description
Technical field
The utility model relates to the magneto technical field, exactly relates to a kind of cooling structure that is applicable to the novel megawatt-level permanent magnet wind-driven generator of low speed high torque.
Background technology
Present permanent magnet synchronous wind generator can both be accomplished MW class, and along with the lifting greatly of permanent magnet synchronous wind generator power grade, its ventilation and heat problem also highlights.
The wind path structure that present existing permanent magnet synchronous wind generator adopts generally is: by the cooler air intake, lead to the motor other end from motor one end and motor radial ducts through air gap, return cooler again; Perhaps by the cooler air intake, return cooler through behind the air gap by the motor radial ducts from the motor two ends, as publication number is CN2482762, the Chinese patent file that open day is on March 20th, 2002 discloses a kind of permanent magnet generator aeration structure, electric motor end cap and rotor link, and rotate thereupon, establish ventilation hole on the end face, establish the fan blade that relative end cap end face reverses an angle at least one end cap, produce axial air flow stream when making rotor rotation and cross in the motor.This aeration structure provides the small generator self-ventilation with plain mode, and to closely attaching is when prime mover constitutes generating set, this axial flow subtend prime mover side helps stoping the heating of prime mover to pass to generator.
But for the smaller permanent magnet synchronous wind generator of the diameter of axle, above-mentioned aeration structure obviously can not effectively dispel the heat, and can not guarantee effectively that the temperature rise of motor meets the requirements.
The utility model content
For solving the problems of the technologies described above, the utility model proposes a kind of aeration structure that is applicable to the novel megawatt-level permanent magnet wind-driven generator of low speed high torque, the utility model has overcome the deficiency of existing aeration structure, increased wind path length, improved radiating efficiency, thereby the temperature rise of motor is effectively guaranteed.
The utility model is realized by adopting following technical proposals:
A kind of novel megawatt-level permanent magnet wind-driven generator aeration structure is characterized in that: comprise cooler, cover plate, dividing plate, support arc plate, floor and stator core; Wherein, cooler places the motor top, support arc plate cylindraceous places outside the stator core, cover plate is installed in outside the described support arc plate, dividing plate is between support arc plate and cover plate, and dividing plate becomes axially mutually nonventilated two wind districts with support arc plate with the cover plate zone isolation, and the air intake of cooler and outlet air end are communicated with described two wind districts respectively, on described support arc plate, along the circumferential direction be evenly equipped with many group radial ventilations hole, a plurality of axial floors are housed between support arc plate and stator core.
A plurality of floors are circumferentially uniform along the stator core outer surface, and a plurality of floors are divided into several along stator core circumferencial direction axial ducts independently with the air channel.
What be positioned at described two wind districts respectively organizes the distribution straggly of radial ventilation hole.
The radial ventilation hole number coupling of offering on the number of described axial ducts and the support arc plate.
The number in every group of radial ventilation hole is 4.
Described cooler is sky-water cooler.
Compared with prior art, the beneficial effect that the utility model reached is as follows:
1, the utility model alternately has ventilation hole on support arc plate, the zone is divided into nonventilated two wind districts mutually by dividing plate between support arc plate and cover plate, floor is divided into some independent ventiducts to support arc plate and stator core along circumference, so just increased the wind path length of motor, thereby raising radiating efficiency, the maximum characteristics of this aeration structure are to increase wind path length by changing structure, seem especially practical for the smaller pancake low speed large torque moment permanent-magnet synchronous machine of the diameter of axle, be specially adapted to partly directly drive the ventilation of megawatt-level permanent magnet wind-driven generator, can effectively reduce the operation temperature rise of motor.
2, in the utility model, a plurality of floors are circumferentially uniform along the stator core outer surface, what be positioned at described two Ge Feng districts respectively organizes the distribution straggly of radial ventilation hole, the radial ventilation hole number coupling of offering on the number of described axial ducts and the support arc plate, the number in every group of radial ventilation hole is 4, cooler adopts sky-water cooler, can improve radiating efficiency, further reduces the operation temperature rise of motor.
Description of drawings
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is an aeration structure front view of the present invention
Fig. 2 is the assembling schematic diagram of cover plate, dividing plate and support arc plate
Fig. 3 is the support arc composition that hardens
Fig. 4 is the A-A cutaway view among Fig. 1
Fig. 5 is a B-B cutaway view among Fig. 1
Fig. 6 is a wind path flow chart of the present utility model
Mark among the figure:
1, cooler, 2, cover plate, 3, dividing plate, 4, support arc plate, 5, floor, 6, stator core.
Embodiment
The utility model discloses a kind of novel megawatt-level permanent magnet wind-driven generator aeration structure, comprise cooler 1, cover plate 2, dividing plate 3, support arc plate 4, floor 5 and stator core 6; Wherein, cooler 1 places the motor top, support arc plate 4 cylindraceous places outside the stator core 6, cover plate 2 places outside the described support arc plate 4, dividing plate 3 is between support arc plate 4 and cover plate 2, and dividing plate 3 becomes axially nonventilated two wind districts mutually with zone isolation between support arc plate 4 and the cover plate 2, the air intake of cooler 1 and outlet air end are communicated with cover plate 2 respectively, air intake and outlet air end are communicated with described two wind districts respectively, on described support arc plate 4, along the circumferential direction be evenly equipped with many group radial ventilations hole, axial a plurality of floors 5 are housed between support arc plate 4 and stator core 6.
As follows as preferred forms of the present utility model: a plurality of floors 5 are circumferentially uniform along stator core 6 outer surfaces, and a plurality of floors 5 are divided into several along stator core 6 circumferencial directions axial ducts independently with the air channel.What be positioned at described two wind districts respectively organizes the distribution straggly of radial ventilation hole.The radial ventilation hole number coupling of offering on the number of described axial ducts and the support arc plate 4.The number in every group of radial ventilation hole is 4.Described cooler 1 is sky-water cooler.All the other are with embodiment 1.
With reference to Figure of description, an embodiment of the present utility model is: as shown in Figure 1, cooler 1 is positioned over the motor top; Between support arc plate 4 and the cover plate 2 dividing plate 3 is housed, support arc plate 4 is isolated into axially nonventilated two wind districts mutually with cover plate 2 by dividing plate 3, and the assembling schematic diagram of cover plate 2, dividing plate 3 and support arc plate 4 as shown in Figure 2; Support arc plate 4 upper edge circle alternates have the radial ventilation hole, as shown in Figure 3; It is circumferentially uniform along stator core 6 outer surfaces that axial floor 5(floor 5 is housed between support arc plate 4 and the stator core 6), floor 5 is divided into some axial ducts independently along the circumferential direction to the air channel, and the ventilation hole of alternately opening on the independent ventiduct number of its formation and the support arc plate 4 is relevant.Overall wind path as shown in Figure 1, rouse cold wind by cooler 1 centrifugal fan toward motor end and electric machine stator iron 6 backs, via stator core 6 radial ducts, air gap, rotor ventilation road, lead to the motor other end and stator core 6 backs, return cooler 1; Fig. 4 is the A-A view of Fig. 4, is along the circumference air blast at support arc plate 4 and 2 of cover plates as shown in the figure, is dried toward electric machine stator iron 6 backs by support arc plate 4 ventilation holes simultaneously; Fig. 5 is the B-B view of Fig. 4, is along the circumference exhausting at support arc plate 4 and 2 of cover plates as shown in the figure, simultaneously by the past electric machine stator iron 6 back exhausting of support arc plate 4 ventilation holes.In conjunction with Fig. 1, Fig. 4 and Fig. 5, Fig. 6 with flowchart text the wind path structure of this invention.
Claims (6)
1. a novel megawatt-level permanent magnet wind-driven generator aeration structure is characterized in that: comprise cooler (1), cover plate (2), dividing plate (3), support arc plate (4), floor (5) and stator core (6); Wherein, cooler (1) places the motor top, support arc plate cylindraceous (4) places outside the stator core (6), cover plate (2) places outside the described support arc plate (4), dividing plate (3) is positioned between support arc plate (4) and the cover plate (2), and dividing plate (3) becomes axially nonventilated two wind districts mutually with zone isolation between support arc plate (4) and the cover plate (2), the air intake of cooler (1) and outlet air end are communicated with cover plate (2) respectively, air intake and outlet air end are communicated with described two wind districts respectively, on described support arc plate (4), along the circumferential direction be evenly equipped with many group radial ventilations hole, axial a plurality of floors (5) are housed between support arc plate (4) and stator core (6).
2. novel megawatt-level permanent magnet wind-driven generator aeration structure according to claim 1, it is characterized in that: a plurality of floors (5) are circumferentially uniform along stator core (6) outer surface, and a plurality of floors (5) are divided into several along stator core (6) circumferencial direction axial ducts independently with the air channel.
3. novel megawatt-level permanent magnet wind-driven generator aeration structure according to claim 1 and 2 is characterized in that: what be positioned at described two wind districts respectively organizes the distribution straggly of radial ventilation hole.
4. novel megawatt-level permanent magnet wind-driven generator aeration structure according to claim 2 is characterized in that: the radial ventilation hole number coupling of offering on the number of described axial ducts and the support arc plate (4).
5. novel megawatt-level permanent magnet wind-driven generator aeration structure according to claim 1, it is characterized in that: the number in every group of radial ventilation hole is 4.
6. novel megawatt-level permanent magnet wind-driven generator aeration structure according to claim 1 is characterized in that: described cooler (1) is sky-water cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206340131U CN201869027U (en) | 2010-11-30 | 2010-11-30 | Ventilation structure of novel megawatt permanent magnet wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206340131U CN201869027U (en) | 2010-11-30 | 2010-11-30 | Ventilation structure of novel megawatt permanent magnet wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869027U true CN201869027U (en) | 2011-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206340131U Expired - Lifetime CN201869027U (en) | 2010-11-30 | 2010-11-30 | Ventilation structure of novel megawatt permanent magnet wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201869027U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545462A (en) * | 2011-11-30 | 2012-07-04 | 西安久和能源科技有限公司 | Megawatt-level air-water-cooling high speed permanent magnet generator |
| CN111900836A (en) * | 2020-08-05 | 2020-11-06 | 无锡华庄电机有限公司 | Large-scale motor system with liquid cooling function of dispelling heat fast |
-
2010
- 2010-11-30 CN CN2010206340131U patent/CN201869027U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545462A (en) * | 2011-11-30 | 2012-07-04 | 西安久和能源科技有限公司 | Megawatt-level air-water-cooling high speed permanent magnet generator |
| CN111900836A (en) * | 2020-08-05 | 2020-11-06 | 无锡华庄电机有限公司 | Large-scale motor system with liquid cooling function of dispelling heat fast |
| CN111900836B (en) * | 2020-08-05 | 2021-09-14 | 无锡华庄电机有限公司 | Large-scale motor system with liquid cooling function of dispelling heat fast |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |