CN204271785U - A kind of generator amature ventilation slot structure - Google Patents
A kind of generator amature ventilation slot structure Download PDFInfo
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- CN204271785U CN204271785U CN201420755956.8U CN201420755956U CN204271785U CN 204271785 U CN204271785 U CN 204271785U CN 201420755956 U CN201420755956 U CN 201420755956U CN 204271785 U CN204271785 U CN 204271785U
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Abstract
The utility model discloses a kind of generator amature ventilation slot structure, comprise bottom land filler strip, rotor windings, filler strip under wedge, damping winding and rotor slot wedge, rotor windings axially at least has one and forms the passage of radial ventilation with ventilation hole, any two adjacent copper bars axially form described passage at rotor windings, the air inlet of beneath galleries is in tilted layout along cooling air wind direction, the top of passage is at least provided with the air duct that a cross section is serpentine, channel upper copper bar many copper conductor mutual dislocation are axially arranged, any two adjacent copper bars axially form the air duct of described serpentine at rotor windings.The air inlet of beneath galleries is in tilted layout along cooling air wind direction by the utility model, the air intake resistance suffered by passage air inlet can be effectively reduced, increase the air intake flow velocity of refrigerating gas admission passage, will turbulent flow be formed after the refrigerating gas of beneath galleries air inlet enters serpentine air duct, ventilating and cooling effect is significantly improved.
Description
Technical field
The utility model relates to technical field of generators, particularly relates to a kind of generator amature ventilation slot structure.
Background technology
Generator is the plant equipment other forms of energy conversion being become electric energy, it is driven by the hydraulic turbine, steam turbine, diesel engine or other dynamic power machines, by current, and air-flow, the Conversion of Energy that fuel combustion or nuclear fission produce is that mechanical energy passes to generator, then is converted to electric energy by generator.Generator has been widely used in industrial and agricultural production, national defence, science and technology and daily life.The form of generator is a lot, but its operation principle is all based on the law of electromagnetic induction and law of electromagnetic force.Therefore, the rule of its structure is: form with suitable magnetic conduction and electric conducting material the magnetic circuit and the circuit that carry out mutually electromagnetic induction, to produce electromagnetic power, reach the object of power conversion.
Generator is made up of parts such as stator, rotor, end cap and bearings usually.Other structural members that stator holds group, support by stator core, line and fixes these parts form, stator core is the Primary magnetic circuit of stator, stator core is made up of parts such as segmental punching, vent segment, tooth support, tightening bolt, tray, positioning bars, support is used to fixed stator iron core, for suspended type generator, support is used for bearing the total weight of rotating part, and stator core is a part for generator magnetic circuit; The support Main Function of generator is, as the supporting construction of stator core lamination; Bear the moment of torsion of stator, and reached footing; Form the passage of refrigerating gas; Form bearing, the supporting construction of frame and cooler; Rotor is made up of parts such as rotor core winding, retaining ring, centering ring, slip ring, fan and rotating shafts.Stator, rotor are assembled by bearing and end cap by generator, rotor can be rotated in the stator, do the motion of cutting magnetic line, thus produce induced potential, drawn, connect in the loop, just create electric current by binding post.
Ventilation from sub-slot system cross section at the bottom of prior art rotor generally includes filler strip, damping winding and rotor slot wedge under bottom land filler strip, rotor windings, wedge, in this cooling system, gas needed for cooled rotor winding enters in the secondary groove of bottom land by rotor body two ends, through radial straight air channel, enter air gap from the air outlet rotor slot wedge.
Publication number is CN 202197171U, publication date is that the Chinese patent literature of on 04 18th, 2012 discloses a kind of large-capacity air-cooled turbogenerator ventilation structure, it is characterized in that: gas out enters motor end by cooler, rotor is entered after tube-axial fan pressurization, be divided into three passages to cool: first passage adopts radial ventilating and cooling, cold wind is entered by secondary groove, discharged by the radial exhaust vent of two rows, and then enter air gap, second channel adopts axial ventilation cooling: cold wind vertically, entered by fresh air inlet, exhaust vent is discharged, enter air gap again, third channel, cold wind is entered by rotor tip fresh air inlet, behind cooling end, air gap is entered again from end exhaust vent.
Large-capacity air-cooled turbogenerator ventilation structure disclosed in this patent documentation, cold wind is entered by secondary groove, discharged by the radial exhaust vent of two rows, and then enter air gap, form radial direct ventilation in rotor, in addition second channel adopts axial ventilation cooling, third channel, cold wind is entered by rotor tip fresh air inlet, behind cooling end, air gap is entered again from end exhaust vent, form a kind of alternately ventilation cooling structure, whole ventilation structure is quite complicated, and first passage, the cooling air of second channel and third channel can produce and influence each other, cause whole ventilating and cooling effect unsatisfactory.
Utility model content
The utility model is in order to overcome the defect of above-mentioned prior art, a kind of generator amature ventilation slot structure is provided, the air inlet of beneath galleries is in tilted layout along cooling air wind direction by the utility model, the air intake resistance suffered by passage air inlet can be effectively reduced, increase the air intake flow velocity of refrigerating gas admission passage, will turbulent flow be formed after the refrigerating gas of beneath galleries air inlet enters serpentine air duct, ventilating and cooling effect is significantly improved.
The utility model is achieved through the following technical solutions:
A kind of generator amature ventilation slot structure, comprise bottom land filler strip, rotor windings, filler strip under wedge, damping winding and rotor slot wedge, rotor windings is made up of multiple copper bar and turn-to-turn insulation, copper bar is formed side by side by many copper conductors, described bottom land filler strip, rotor windings, filler strip under wedge, damping winding and rotor slot wedge all have ventilation hole, it is characterized in that: described rotor windings axially at least has one and forms the passage of radial ventilation with ventilation hole, any two adjacent copper bars axially form described passage at rotor windings, the air inlet of described beneath galleries is in tilted layout along cooling air wind direction, the top of described passage is at least provided with the air duct that a cross section is serpentine, described channel upper copper bar many copper conductor mutual dislocation are axially arranged, any two adjacent copper bars axially form the air duct of described serpentine at rotor windings.
Described passage is two.
Described passage is multiple, and multiple passage is arranged side by side.
Described bottom land filler strip is corresponding with the copper conductor of refrigerating gas inlet port bottom to be arranged.
Described serpentine air duct is multiple, and multiple serpentine air duct axially joins end to end at rotor windings.
Also comprise secondary groove, described secondary groove and described passage through.
The beneficial effects of the utility model are mainly manifested in the following aspects:
One, the utility model, rotor windings axially at least has one and forms the passage of radial ventilation with ventilation hole, any two adjacent copper bars axially form described passage at rotor windings, the air inlet of described passage is in tilted layout along cooling air wind direction, the air intake resistance suffered by passage air inlet can be effectively reduced, refrigerating gas enters more smooth and easy from passage air inlet, increase the air intake flow velocity of refrigerating gas admission passage, make the wind speed profile of whole passage simultaneously evenly, to increase heat exchange coefficient, thus reach better gas cooled effect, the top of passage is at least provided with the air duct that a cross section is serpentine, described channel upper copper bar many copper conductor mutual dislocation are axially arranged, any two adjacent copper bars axially form the air duct of described serpentine at rotor windings, compared with the straight-through air channel of prior art radial direction, turbulent flow will be formed after the refrigerating gas of beneath galleries air inlet enters serpentine air duct, improve the surface coefficient of heat transfer of copper conductor to refrigerating gas, add the area of dissipation of copper conductor simultaneously, thus reach better gas cooled effect, whole technical scheme forms complete technical scheme, comparatively a prior art, and not only whole aeration structure design is ingenious, and improves the ventilating and cooling Be very effective of copper bar.
Two, the utility model, bottom land filler strip is corresponding with the copper conductor of refrigerating gas inlet port bottom to be arranged, can reduce the obstruction of bottom land filler strip to cooling air further, make the easier admission passage of refrigerating gas, further enhancing cooling air flow velocity, improves the cooling effect to copper bar.
Three, the utility model, serpentine air duct is multiple, multiple serpentine air duct axially joins end to end at rotor windings, refrigerating gas enters after multiple serpentine air duct through beneath galleries air inlet, multiple turbulent flow will be formed continuously, maximizedly improve the surface coefficient of heat transfer of copper conductor to refrigerating gas, add the area of dissipation of copper conductor simultaneously, make ventilating and cooling effect reach best.
Four, the utility model, passage is two, and processing is easier to, add refrigerating gas by area, the area of dissipation of copper conductor is increased, thus improves ventilating and cooling effect.
Five, the utility model, passage is multiple, and multiple passage is arranged side by side, further increase refrigerating gas by area, the area of dissipation of copper conductor is significantly increased, thus makes ventilating and cooling effect reach best.
Six, the utility model, also comprises secondary groove, described secondary groove and described passage through, refrigerating gas can cool copper conductor by direct access after being entered by secondary groove.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment 3;
Fig. 4 is the structural representation of the utility model embodiment 4;
Fig. 5 is the A-A view of the utility model embodiment 4;
Fig. 6 is the structural representation of the utility model embodiment 5;
Fig. 7 is the A-A view of the utility model embodiment 5;
Mark in figure: mark in figure: 1, bottom land filler strip, 2, rotor windings, 3, filler strip under wedge, 4, damping winding, 5, rotor slot wedge, 6, copper bar, 7, turn-to-turn insulation, 8, copper conductor, 9, ventilation hole, 10, passage, 11, air inlet, 12, air duct, 13, secondary groove.
Embodiment
Embodiment 1
See Fig. 1 and Fig. 2, a kind of generator amature ventilation slot structure, comprise bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5, rotor windings 2 is made up of multiple copper bar 6 and turn-to-turn insulation 7, copper bar 6 is formed side by side by many copper conductors 8, described bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5 all have ventilation hole 9, described rotor windings 2 axially has one and forms the path 10 of radial ventilation with ventilation hole 9, any two adjacent copper bars 6 axially form described path 10 at rotor windings 2, the air inlet 11 of described path 10 bottom is in tilted layout along cooling air wind direction, the top of described path 10 is provided with the air duct 12 that a cross section is serpentine, described path 10 top copper bar 6 many copper conductors 8 mutual dislocation is axially arranged, any two adjacent copper bars 6 axially form the air duct 12 of described serpentine at rotor windings 2.
The present embodiment is the most basic execution mode, adopt such structure, the air inlet of described passage is in tilted layout along cooling air wind direction, the air intake resistance suffered by passage air inlet can be effectively reduced, refrigerating gas enters more smooth and easy from passage air inlet, increase the air intake flow velocity of refrigerating gas admission passage, make the wind speed profile of whole passage simultaneously evenly, to increase heat exchange coefficient, thus reach better gas cooled effect, the top of passage is at least provided with the air duct that a cross section is serpentine, described channel upper copper bar many copper conductor mutual dislocation are axially arranged, any two adjacent copper bars axially form the air duct of described serpentine at rotor windings, compared with the straight-through air channel of prior art radial direction, turbulent flow will be formed after the refrigerating gas of beneath galleries air inlet enters serpentine air duct, improve the surface coefficient of heat transfer of copper conductor to refrigerating gas, add the area of dissipation of copper conductor simultaneously, thus reach better gas cooled effect, whole technical scheme forms complete technical scheme, comparatively a prior art, and not only whole aeration structure design is ingenious, and improves the ventilating and cooling Be very effective of copper bar.
Embodiment 2
See Fig. 1 and Fig. 2, a kind of generator amature ventilation slot structure, comprise bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5, rotor windings 2 is made up of multiple copper bar 6 and turn-to-turn insulation 7, copper bar 6 is formed side by side by many copper conductors 8, described bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5 all have ventilation hole 9, described rotor windings 2 axially has one and forms the path 10 of radial ventilation with ventilation hole 9, any two adjacent copper bars 6 axially form described path 10 at rotor windings 2, the air inlet 11 of described path 10 bottom is in tilted layout along cooling air wind direction, the top of described path 10 is provided with the air duct 12 that a cross section is serpentine, described path 10 top copper bar 6 many copper conductors 8 mutual dislocation is axially arranged, any two adjacent copper bars 6 axially form the air duct 12 of described serpentine at rotor windings 2.
Described bottom land filler strip 1 is corresponding with the copper conductor 8 of refrigerating gas inlet port bottom to be arranged.
The present embodiment is a better embodiment, bottom land filler strip is corresponding with the copper conductor of refrigerating gas inlet port bottom to be arranged, can reduce the obstruction of bottom land filler strip to cooling air further, make the easier admission passage of refrigerating gas, further enhancing cooling air flow velocity, improves the cooling effect to copper bar.
Embodiment 3
See Fig. 1 and Fig. 3, a kind of generator amature ventilation slot structure, comprise bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5, rotor windings 2 is made up of multiple copper bar 6 and turn-to-turn insulation 7, copper bar 6 is formed side by side by many copper conductors 8, described bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5 all have ventilation hole 9, described rotor windings 2 axially has one and forms the path 10 of radial ventilation with ventilation hole 9, any two adjacent copper bars 6 axially form described path 10 at rotor windings 2, the air inlet 11 of described path 10 bottom is in tilted layout along cooling air wind direction, the top of described path 10 is provided with the air duct 12 that three cross sections are serpentine, three serpentine air ducts 12 axially join end to end at rotor windings 2, described path 10 top copper bar 6 many copper conductors 8 mutual dislocation is axially arranged, any two adjacent copper bars 6 axially form the air duct 12 of described serpentine at rotor windings 2.
Described bottom land filler strip 1 is corresponding with the copper conductor 8 of refrigerating gas inlet port bottom to be arranged.
The present embodiment is another better embodiment, serpentine air duct is three, three serpentine air ducts axially join end to end at rotor windings, refrigerating gas enters after three serpentine air ducts through beneath galleries air inlet, multiple turbulent flow will be formed continuously, maximizedly improve the surface coefficient of heat transfer of copper conductor to refrigerating gas, add the area of dissipation of copper conductor simultaneously, improve ventilating and cooling effect further.
Embodiment 4
See Fig. 4 and Fig. 5, a kind of generator amature ventilation slot structure, comprise bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5, rotor windings 2 is made up of multiple copper bar 6 and turn-to-turn insulation 7, copper bar 6 is formed side by side by many copper conductors 8, described bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5 all have ventilation hole 9, described rotor windings 2 axially has two and forms the path 10 of radial ventilation with ventilation hole 9, any two adjacent copper bars 6 axially form described path 10 at rotor windings 2, the air inlet 11 of described path 10 bottom is in tilted layout along cooling air wind direction, the top of described path 10 is provided with the air duct 12 that four cross sections are serpentine, four serpentine air ducts 12 axially join end to end at rotor windings 2, described path 10 top copper bar 6 many copper conductors 8 mutual dislocation is axially arranged, any two adjacent copper bars 6 axially form the air duct 12 of described serpentine at rotor windings 2.
Described bottom land filler strip 1 is corresponding with the copper conductor 8 of refrigerating gas inlet port bottom to be arranged.
The present embodiment is another better embodiment, and passage is two, and processing is easier to, add refrigerating gas by area, the area of dissipation of copper conductor is increased, thus improves ventilating and cooling effect; Serpentine air duct is four, four serpentine air ducts axially join end to end at rotor windings, refrigerating gas enters after four serpentine air ducts through beneath galleries air inlet, multiple turbulent flow will be formed continuously, maximizedly improve the surface coefficient of heat transfer of copper conductor to refrigerating gas, add the area of dissipation of copper conductor simultaneously, improve ventilating and cooling effect further.
Embodiment 5
See Fig. 6 and Fig. 7, a kind of generator amature ventilation slot structure, comprise bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5, rotor windings 2 is made up of multiple copper bar 6 and turn-to-turn insulation 7, copper bar 6 is formed side by side by many copper conductors 8, described bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5 all have ventilation hole 9, described rotor windings 2 axially has three and forms the path 10 of radial ventilation with ventilation hole 9, three path 10s are arranged side by side, any two adjacent copper bars 6 axially form described path 10 at rotor windings 2, the air inlet 11 of described path 10 bottom is in tilted layout along cooling air wind direction, the top of described path 10 is provided with the air duct 12 that four cross sections are serpentine, four serpentine air ducts 12 axially join end to end at rotor windings 2, described path 10 top copper bar 6 many copper conductors 8 mutual dislocation is axially arranged, any two adjacent copper bars 6 axially form the air duct 12 of described serpentine at rotor windings 2.
Described bottom land filler strip 1 is corresponding with the copper conductor 8 of refrigerating gas inlet port bottom to be arranged.
Also comprise secondary groove 13, described secondary groove 13 is through with described path 10.
The present embodiment is another better embodiment, and passage is three, and three passages are arranged side by side, further increase refrigerating gas by area, the area of dissipation of copper conductor is significantly increased, thus makes ventilating and cooling effect reach best.
Embodiment 6
See Fig. 6 and Fig. 7, a kind of generator amature ventilation slot structure, comprise bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5, rotor windings 2 is made up of multiple copper bar 6 and turn-to-turn insulation 7, copper bar 6 is formed side by side by many copper conductors 8, described bottom land filler strip 1, rotor windings 2, filler strip 3 under wedge, damping winding 4 and rotor slot wedge 5 all have ventilation hole 9, described rotor windings 2 axially has three and forms the path 10 of radial ventilation with ventilation hole 9, three path 10s are arranged side by side, any two adjacent copper bars 6 axially form described path 10 at rotor windings 2, the air inlet 11 of described path 10 bottom is in tilted layout along cooling air wind direction, the top of described path 10 is provided with the air duct 12 that five cross sections are serpentine, five serpentine air ducts 12 axially join end to end at rotor windings 2, described path 10 top copper bar 6 many copper conductors 8 mutual dislocation is axially arranged, any two adjacent copper bars 6 axially form the air duct 12 of described serpentine at rotor windings 2.Described bottom land filler strip 1 is corresponding with the copper conductor 8 of refrigerating gas inlet port bottom to be arranged.Also comprise secondary groove 13, described secondary groove 13 is through with described path 10.
The present embodiment is preferred forms, and passage is three, and three passages are arranged side by side, further increase refrigerating gas by area, the area of dissipation of copper conductor is significantly increased, thus makes ventilating and cooling effect reach best; Serpentine air duct is five, five serpentine air ducts axially join end to end at rotor windings, refrigerating gas enters after five serpentine air ducts through beneath galleries air inlet, multiple turbulent flow will be formed continuously, maximizedly improve the surface coefficient of heat transfer of copper conductor to refrigerating gas, add the area of dissipation of copper conductor simultaneously, make ventilating and cooling effect reach best; Also comprise secondary groove, described secondary groove and described passage through, refrigerating gas can cool copper conductor by direct access after being entered by secondary groove.
The utility model is not limited to above-described embodiment, and according to the description of above-described embodiment, those of ordinary skill in the art also can make some apparent changes to the utility model, but these changes all should fall within the protection range of the utility model claim.
Claims (5)
1. a generator amature ventilation slot structure, comprise bottom land filler strip (1), rotor windings (2), filler strip (3) under wedge, damping winding (4) and rotor slot wedge (5), rotor windings (2) is made up of multiple copper bar (6) and turn-to-turn insulation (7), copper bar (6) is formed side by side by many copper conductors (8), described bottom land filler strip (1), rotor windings (2), filler strip (3) under wedge, damping winding (4) and rotor slot wedge (5) all have ventilation hole (9), it is characterized in that: described rotor windings (2) axially at least has one and forms the passage (10) of radial ventilation with ventilation hole (9), any two adjacent copper bars (6) axially form described passage (10) at rotor windings (2), the air inlet (11) of described passage (10) bottom is in tilted layout along cooling air wind direction, the top of described passage (10) is at least provided with the air duct (12) that a cross section is serpentine, described passage (10) top copper bar (6) many copper conductors (8) mutual dislocation is axially arranged, any two adjacent copper bars (6) axially form the air duct (12) of described serpentine at rotor windings (2).
2. a kind of generator amature ventilation slot structure according to claim 1, is characterized in that: described bottom land filler strip (1) is corresponding with the copper conductor (8) of refrigerating gas inlet port bottom arranges.
3. a kind of generator amature ventilation slot structure according to claim 1 and 2, is characterized in that: described serpentine air duct (12) is for multiple, and multiple serpentine air duct (12) axially joins end to end at rotor windings (2).
4. a kind of generator amature ventilation slot structure according to claim 1 and 2, is characterized in that: described passage (10) is two.
5. a kind of generator amature ventilation slot structure according to claim 4, is characterized in that: described passage (10) is for multiple, and multiple passage (10) is arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755956.8U CN204271785U (en) | 2014-12-05 | 2014-12-05 | A kind of generator amature ventilation slot structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755956.8U CN204271785U (en) | 2014-12-05 | 2014-12-05 | A kind of generator amature ventilation slot structure |
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| Publication Number | Publication Date |
|---|---|
| CN204271785U true CN204271785U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420755956.8U Withdrawn - After Issue CN204271785U (en) | 2014-12-05 | 2014-12-05 | A kind of generator amature ventilation slot structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410190A (en) * | 2014-12-05 | 2015-03-11 | 东方电气集团东方电机有限公司 | Ventilating slot structure of generator rotor |
| CN112953120A (en) * | 2021-01-25 | 2021-06-11 | 中国第一汽车股份有限公司 | Motor cooling system, cooling method and motor |
-
2014
- 2014-12-05 CN CN201420755956.8U patent/CN204271785U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410190A (en) * | 2014-12-05 | 2015-03-11 | 东方电气集团东方电机有限公司 | Ventilating slot structure of generator rotor |
| CN112953120A (en) * | 2021-01-25 | 2021-06-11 | 中国第一汽车股份有限公司 | Motor cooling system, cooling method and motor |
| CN112953120B (en) * | 2021-01-25 | 2023-01-03 | 中国第一汽车股份有限公司 | Motor cooling system, cooling method and motor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150415 Effective date of abandoning: 20171121 |