CN205791873U - Cold ventilating duct in salient-pole machine magnetic pole - Google Patents
Cold ventilating duct in salient-pole machine magnetic pole Download PDFInfo
- Publication number
- CN205791873U CN205791873U CN201620476450.2U CN201620476450U CN205791873U CN 205791873 U CN205791873 U CN 205791873U CN 201620476450 U CN201620476450 U CN 201620476450U CN 205791873 U CN205791873 U CN 205791873U
- Authority
- CN
- China
- Prior art keywords
- pole
- ventilating duct
- magnetic pole
- cold
- coil
- 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.)
- Active
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses cold ventilating duct in a kind of salient-pole machine magnetic pole, including pole core, pole coil and collar cheek, gap is had to form some tunnel inlet between described pole core side and pole coil, boots portion it is provided with outside pole core, described boots lower surface offers the ventilating duct corresponding with tunnel inlet quantity and position, and ventilating duct and tunnel inlet are collectively forming cold air duct in magnetic pole.The beneficial effects of the utility model are: with existing pole coil without compared with interior cold air duct structure, pole coil cooling effect significantly improves, it is not necessary to set up metal supporting plate, and structure is simpler, simple installation, eliminate the application limitation of prior art；By different ventilating duct size proportionings, can regulate magnetic pole inner surface ventilating duct crosses wind area and cooling surface area, reduces the heat generating components temperature difference, the heat dispersion on cold wind road in Appropriate application magnetic pole.
Description
Technical field
This utility model relates to motor cooling technology field, cold ventilating duct in particularly a kind of salient-pole machine magnetic pole.
Background technology
Salient-pole machine capacity per electrode is generally at below 10MVA, and part can reach 15MVA.Along with the market demand change and
The development of correlation technique, the capacity per electrode of salient-pole machine magnetic pole constantly rises, and capacity per electrode is expected to reach 30-40MVA/ pole.With
The raising of capacity per electrode, the design difficulty of magnetic pole increases.If the condition at the pole coil using the identical number of turn and weight
Under, the electric current density of coil will be more and more higher, and pole coil generates heat increasingly severe；But, if by increasing magnetic pole
Coil turn and weight reduce pole coil electric current density, then magnetic pole weight can be made to dramatically increase, thus can make magnetic pole, magnetic
The stress of the parts such as yoke, rotor field spider dramatically increases.
Magnetic pole, yoke, the stress of rotor field spider are restriction rotor design and the key factor manufactured.For rotor line
For fast unit, its stress is the biggest, if magnetic pole weight is excessive, then magnetic pole, yoke, rotor may be made to prop up
The stress of frame etc. exceedes the allowable stress of major part material, thus can dramatically increase and manufacture and design difficulty and cost.Therefore, for
Capacity per electrode is high, particularly the high speed unit of capacity per electrode superelevation, needs by improving magnetic pole ventilating and cooling effect, to reduce
The number of turn of pole coil and weight reduce the weight of whole pole assemblage, thus reduce magnetic pole, yoke, rotor field spider portion
The purpose of position stress, manufactures and designs difficulty and cost control in the reasonable scope the most at last.
The normally gaseous cooling of the magnetic pole type of cooling of salient-pole machine.Rotor field spider produces blast head in rotary course,
Through yoke cooling gas is blown to magnetic pole interpolar, and cooling gas enters air gap and stator core air duct flowing through magnetic pole interpolar
During, pole coil can be skimmed over and be in the surface of interpolar, cooling gas occurs heat to hand on pole coil surface with pole coil
Change, the heat of pole coil is taken away, thus realize the cooling to pole coil.This kind of type of cooling, pole coil participates in changing
The surface of heat is only in the fraction along magnetic pole current-carrying row's thickness direction of interpolar, and cooling effect is undesirable.
Additionally, rotor is in rotary course, the pole coil of magnetic pole is " windward side " towards the face of direction of rotation, towards rotation
Reciprocal that turns direction is " lee face ", and the pole coil surface between two adjacent poles, one is " lee face ", one
For " windward side "；Magnetic pole rotation can produce circumference blast, and it can make the blast blast higher than " lee face " of " windward side ", the most logical
The blast of the cooling gas crossing coil outer surface there will be " windward side " blast higher than " lee face " under the influence of magnetic pole rotates
The situation of blast, the cooling effect that thus can cause cooling effect ratio " windward side " of " lee face " is worse, causes " lee face "
" windward side " temperature rise differs greatly, consequently, it is possible to affect pole coil and the reliability of insulation thereof and service life.
My house journal's Application No. 201410024279.7 file proposes cold and outer cold subregion in a kind of rotor magnetic pole
The method of cooling, the method is interior cold and outer cold by carrying out pole coil simultaneously, and by interior cold and outer cold at two pole coils
Between passage in ventilation wind path separate, make interior cold and outer cold ventilation wind path non-interference, the cooling gas of interior ventilation can be made
Successfully flow in the passage between two pole coils, thus improve whole rotor magnetic pole cooling effect.The interior cold wind road of magnetic pole
By the gap between pole coil and pole core and some be arranged on pole coil or arbitrary neighborhood current-carrying row between cross stream
Passage (also referred to as ventilating duct) forms.For preventing pollutant from gathering in interior cold wind road, must be provided with in pole coil outermost
Described ventilating duct.
Conventional pole core structure is as it is shown in figure 1, typically pass through between collar cheek and pole core boots portion extra
Layer of metal supporting plate is set, and forms this outermost ventilating duct by processing a series of groove on metal supporting plate.But, the party
Method there is also problem, and when the rotor rotates, the off-chip power of metal supporting plate can produce cross component force through decomposition, to field structure
Safety and stability brings threat.For avoiding the destruction of cross component force, needing, extra fixing device is set and metal supporting plate is carried out solid
Fixed, consequently, it is possible to the structure of outermost ventilating duct just becomes complicated, it is the most inconvenient to install.Therefore, the knot involved by this method
Structure be typically only used for there is theoretically no cross component force in core magnetic pole, range of application is limited to.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, it is provided that cold in a kind of salient-pole machine magnetic pole
Ventilating duct.
The technical solution adopted in the utility model is such that
Scheme one:
Cold ventilating duct in a kind of salient-pole machine magnetic pole, including pole core, pole coil and collar cheek, described magnetic pole
There is gap to form some tunnel inlet between iron core side and pole coil, outside pole core, be provided with boots portion, described boots subordinate
The ventilating duct corresponding with tunnel inlet quantity and position is offered on surface, and ventilating duct and tunnel inlet are collectively forming cold wind in magnetic pole
Road.
Scheme two:
Cold ventilating duct in a kind of salient-pole machine magnetic pole, including pole core, pole coil and collar cheek, described magnetic pole
There is gap to form some tunnel inlet between iron core side and pole coil, outside pole core, be provided with boots portion, described magnetic pole ferrum
Core is formed by some pole lamination closed assemblies with different boots portions height, and the boots portion of each pole lamination is due to boots portion height difference
Form some ventilating ducts respectively in pole core both sides, each ventilating duct is corresponding with tunnel inlet quantity and position, ventilating duct and wind
Road entrance is collectively forming cold air duct in magnetic pole.
In above-mentioned two scheme, described ventilating duct cross section is square, trapezoidal, semicircle or kidney-shaped or other arbitrary energy
The geometry that enough supplied gas are passed through.
In above-mentioned two scheme, the ventilating duct height of described ventilating duct is 2-20mm, the ventilating duct width of described ventilating duct
For 2-100mm.
In above-mentioned two scheme, in the one side of pole core, the width summation of each described ventilating duct and the length of pole core
The ratio of degree is 0.05-0.5.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, with existing pole coil without compared with interior cold air duct structure, pole coil cooling effect significantly improves；
2, with existing pole coil without compared with interior cold air duct structure, this utility model eliminates unborn metal
Supporting plate, structure is simpler, simple installation, eliminates the application limitation of prior art；
3, by different ventilating duct size proportionings, can regulate magnetic pole inner surface ventilating duct crosses wind area and heat radiation table
Area, the heat dispersion on cold wind road in Appropriate application magnetic pole.
Accompanying drawing explanation
Fig. 1 is conventional pole core (schematic diagram after normal operating condition upset 180 °)；
Fig. 2 is that the pole core of the band ventilating duct of this utility model embodiment 1 is (after normal operating condition overturns 180 °
Schematic diagram)；
Fig. 3 is that cold air duct in the magnetic pole that in this utility model embodiment 1, pole core and pole coil are collectively forming is (normal
Schematic diagram after use state upset 180 °)；
Pole lamination (schematic diagram after normal operating condition upset 180 °) in Fig. 4 this utility model embodiment 2.
Labelling in figure: 1-boots portion, 2-ventilating duct, 3-ventilating duct width, 4-ventilating duct height, 5-collar cheek, 6-air channel
Entrance, cold air duct in 7-magnetic pole, 8-pole coil, 9-pole lamination, 10-boots portion height.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
Embodiment 1:
As shown in Figure 2,3, cold ventilating duct in a kind of salient-pole machine magnetic pole, including pole core, pole coil 8 and magnetic pole
Supporting plate 5, has gap to form some tunnel inlet 6, is provided with outside pole core between described pole core side and pole coil 8
Boots portion 1, described boots portion 1 lower surface offers the ventilating duct 2 corresponding with tunnel inlet 6 quantity and position, ventilating duct 2 and tunnel inlet
6 are collectively forming cold air duct 7 in magnetic pole.
Described ventilating duct 2 cross section be square, trapezoidal, semicircle kidney-shaped or other can supplied gas pass through arbitrarily
Geometry.
The ventilating duct height 4 of described ventilating duct 2 is 2-20mm, and the ventilating duct width 3 of described ventilating duct 2 is 2-100mm.
In the one side of pole core, each width summation of described ventilating duct 2 and the length ratio of pole core are 0.05-
0.5。
Embodiment 2:
As shown in Figure 2,3, cold ventilating duct in a kind of salient-pole machine magnetic pole, including pole core, pole coil 8 and magnetic pole
Supporting plate 5, has gap to form some tunnel inlet 6, is provided with outside pole core between described pole core side and pole coil 8
Boots portion 1, described pole core is had the pole lamination 9(of different boots portions height 10 as shown in Figure 4 by some) closed assembly forms, each magnetic
The boots portion 1 of pole punching 9 forms some ventilating ducts 2 respectively due to boots portion height 10 difference in pole core both sides, each ventilating duct 2
Corresponding with tunnel inlet 6 quantity and position, ventilating duct 2 and tunnel inlet 6 are collectively forming cold air duct 7 in magnetic pole.
Described ventilating duct 2 cross section be square, trapezoidal, semicircle kidney-shaped or other can supplied gas pass through arbitrarily
Geometry.
The ventilating duct height 4 of described ventilating duct 2 be 2-20mm(more preferably, the ventilating duct height 4 of ventilating duct 2 may be selected to be
2-15mm), the ventilating duct width 3 of described ventilating duct 2 is 2-100mm.
In the one side of pole core, each width summation of described ventilating duct 2 and the length ratio of pole core are 0.05-
0.5。
Claims (5)
1. a cold ventilating duct in salient-pole machine magnetic pole, including pole core, pole coil (8) and collar cheek (5), described
There is gap to form some tunnel inlet (6) between pole core side and pole coil (8), outside pole core, be provided with boots portion
(1), it is characterised in that: described boots portion (1) lower surface offers the ventilating duct (2) corresponding with tunnel inlet (6) quantity and position, logical
Air channel (2) and tunnel inlet (6) are collectively forming cold air duct (7) in magnetic pole.
2. a cold ventilating duct in salient-pole machine magnetic pole, including pole core, pole coil (8) and collar cheek (5), described
There is gap to form some tunnel inlet (6) between pole core side and pole coil (8), outside pole core, be provided with boots portion
(1), it is characterised in that: described pole core is formed, respectively by some pole lamination (9) closed assemblies with different boots portion height (10)
The boots portion (1) of pole lamination (9) forms some ventilating ducts due to boots portion height (10) difference respectively in pole core both sides
(2), each ventilating duct (2) is corresponding with tunnel inlet (6) quantity and position, and ventilating duct (2) and tunnel inlet (6) are collectively forming magnetic pole
Interior cold air duct (7).
Cold ventilating duct in salient-pole machine magnetic pole the most according to claim 1 and 2, it is characterised in that: described ventilating duct (2) is horizontal
Cross section is square, trapezoidal, semicircle or kidney-shaped.
Cold ventilating duct in salient-pole machine magnetic pole the most according to claim 1 and 2, it is characterised in that: described ventilating duct (2)
Ventilating duct height (4) is 2-20mm, and the ventilating duct width (3) of described ventilating duct (2) is 2-100mm.
Cold ventilating duct in salient-pole machine magnetic pole the most according to claim 1 and 2, it is characterised in that: at the list of pole core
Side, each width summation of described ventilating duct (2) and the length ratio of pole core are 0.05-0.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476450.2U CN205791873U (en) | 2016-05-24 | 2016-05-24 | Cold ventilating duct in salient-pole machine magnetic pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476450.2U CN205791873U (en) | 2016-05-24 | 2016-05-24 | Cold ventilating duct in salient-pole machine magnetic pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205791873U true CN205791873U (en) | 2016-12-07 |
Family
ID=58115013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620476450.2U Active CN205791873U (en) | 2016-05-24 | 2016-05-24 | Cold ventilating duct in salient-pole machine magnetic pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205791873U (en) |
-
2016
- 2016-05-24 CN CN201620476450.2U patent/CN205791873U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102290922B (en) | Double-fed wind generator | |
| CN102611229B (en) | Air-to-air cooling double-fed asynchronous wind driven generator | |
| CN102007668B (en) | Electric machine with separate double ventilation | |
| CN105981269B (en) | Totally-enclosed-type traction motor | |
| CN102769356A (en) | Permanent magnet synchronous traction motor with air cooling structure and air cooling method of permanent magnet synchronous traction motor | |
| CN101490931B (en) | Cooling arrangement for an electrical machine | |
| US11101713B2 (en) | Vehicle motor | |
| CN106451864B (en) | Permanent magnet traction motor mixed ventilation cooling system and method | |
| EP2662959A2 (en) | Rotating electric machine | |
| CN105186790A (en) | Steam turbine generator end part axial-radial-tangential multi-directional magnetic leakage evacuation magnetic shielding device | |
| CN205791875U (en) | Cold air ducting in salient-pole machine pole coil | |
| CN101860119B (en) | Large air-cooled turbo-generator with circumferential mixed ventilation cooling structure | |
| CN205753850U (en) | The ventilation cooling device of a kind of vertical hydrogenerator and vertical hydrogenerator | |
| CN206180727U (en) | Mixed ventilation and cooling system of permanent magnetism traction motor | |
| JP6220178B2 (en) | Rotating electric machine | |
| CN205791873U (en) | Cold ventilating duct in salient-pole machine magnetic pole | |
| CN205791874U (en) | Cold ventilating duct in salient-pole machine magnetic pole | |
| CN108258824A (en) | A kind of rotor magnetic pole direct conductor cooling cold combines cooling means with outer | |
| CN201813261U (en) | Generator and cooling system thereof | |
| CN203734408U (en) | Device separating internal cooling ventilation from external cooling ventilation for rotor magnetic pole | |
| JP2013034332A (en) | Rotary electric machine | |
| CN203734404U (en) | Internal and external cooling separated cooler of rotor magnetic pole | |
| CN103715803B (en) | A kind of method that in rotor magnetic pole, cold and outer cold subregion cools | |
| CN206432798U (en) | A kind of rotor magnetic pole direct conductor cooling cold combines cooling structure with outer | |
| US20120074708A1 (en) | Generator for an Electrical Machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |