CN202334146U - Air path of water jacket cooling generator - Google Patents
Air path of water jacket cooling generator Download PDFInfo
- Publication number
- CN202334146U CN202334146U CN2011204703718U CN201120470371U CN202334146U CN 202334146 U CN202334146 U CN 202334146U CN 2011204703718 U CN2011204703718 U CN 2011204703718U CN 201120470371 U CN201120470371 U CN 201120470371U CN 202334146 U CN202334146 U CN 202334146U
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- water jacket
- rotor
- airduct
- air
- straight
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Abstract
The utility model discloses an air path of a water jacket cooling generator and solves the problem of over-high whole temperature of a generator caused by non-full heat exchange of the conventional air path of the water jacket cooling generator. The air path of the water jacket cooling generator comprises a rotor axial ventilation channel (18) which is formed in a rotor iron core (13), an annular air gap (12) which is formed between a stator and a rotor, and straight ventilation pipes (5), wherein the straight ventilation pipes (5) are arranged in parallel in an annular water jacket (2) which is fixed on a base (1); a backflow air pipe (7) is arranged in the annular water jacket (2); an annular air stopping ring (21) is arranged on an inner ring of an air-inlet annular end plate (3) of the annular water jacket; radial ventilation channels (14) which are communicated with the rotor axial ventilation channel (18) are uniformly formed on the rotor iron core (13); a spacer (15) is arranged in each radial ventilation channel (14); and the spacers (15) are arranged at equal radian intervals on the same circumference of the radial ventilation channels (14). By adoption of the air path of the water jacket cooling generator, an air medium of the water jacket cooling generator is subjected to full heat exchange, and the temperature rising of the generator is effectively controlled.
Description
Technical field
The present invention relates to a kind of wind path of generator, the wind path of the cold generator of particularly a kind of water jacket.
Background technology
The wind path of the cold generator of water jacket is by the air gap wind path between the rotor, rotor axial, radially water jacket wind path and the fan in wind path, the support formed.When motor rotates; Hot-air gets into the straight-through airduct in the water jacket, after the water cooling that is cooled, returns in the motor; Through the air gap wind path between the rotor and rotor axial, after radially wind path absorbs heat; Get into water jacket again and carry out heat exchange,, the heat that motor produces is taken away through circulating of wind path air medium.In the wind path of the general cold generator of water jacket, exist in the air gap wind path between the stator and rotor cooling medium consumption less, and cooling medium consumption is bigger in the rotor axial wind path, causes the rotor path short circuit, the heat of the rotor winding medium that is not cooled is fully taken away; Make the rotor heating in winding serious; Often ignore the cooling of stator winding end during wind path design simultaneously; Make the stator winding end local flow coolant very little; Also exist coolant in the rotor wind path not obtain the problem of sufficient heat exchange simultaneously, cause the too high problem of whole generator temperature rise.
Summary of the invention
The invention provides the wind path of the cold generator of a kind of water jacket, solved the insufficient too high problem of whole generator temperature rise that causes of wind path heat exchange of the cold generator of existing water jacket.
The present invention overcomes the above problems through following scheme:
The wind path of the cold generator of water jacket; Be included in the annulus gap that forms between rotor axial air duct, stator and the rotor that is provided with in the rotor core and be fixed on the straight-through airduct that is arranged side by side in the ring-shaped water jacket on the support; The rotor driven end is provided with fan blade, when rotor rotates, and the air outlet of wind along the air intake vent of the straight-through airduct of the water jacket at rotor driven end place to the straight-through airduct of the water jacket at rotor anti-drive end place; The air intake vent of the straight-through airduct of the parallel again water jacket of getting back to rotor driven end place along annulus gap and rotor axial air duct; Form the circulation cooling air duct, in ring-shaped water jacket, be provided with the backflow airduct, the air inlet annular endplate inner ring of ring-shaped water jacket is provided with annular fan shroud; The air outlet annular endplate of ring-shaped water jacket is provided with the U-shaped pipe; One end of U-shaped pipe is communicated with the air intake vent of backflow airduct, and the air outlet of a straight-through airduct in the other end of U-shaped pipe and the straight-through airduct that is arranged side by side is communicated with, and the air outlet of backflow airduct is arranged on the inboard of annular fan shroud; On rotor core, evenly be provided with the radial ducts that is communicated with the rotor axial air duct, in radial ducts, be provided with partition, partition is provided with at the first-class radian of same circumference of radial ducts at interval.
Be provided with the taper tube that keeps out the wind at the air outlet place of rotor axial air duct.
Stator winding notch height L2 in the stator core is 4-8 with the ratio of the radial height L1 of annulus gap.
The present invention is guaranteeing under the constant situation of the electric air gap of generator; Increase the flow in the rotor air gap wind path and be provided with the rotor radial wind path; Increase the area of dissipation of rotor, made the heat exchange of wind path air medium more abundant, effectively controlled the temperature rise of generator.
Description of drawings
Fig. 1 is a wind path structural representation of the present invention;
Fig. 2 is the wind path sketch map of rotor core of the present invention;
Fig. 3 is the wind path sketch map of stator core winding of the present invention end.
Embodiment
The wind path of the cold generator of water jacket; Be included in the annulus gap 12 that forms between rotor axial air duct 18, stator and the rotor that is provided with in the rotor core 13 and be fixed on the straight-through airduct 5 that is arranged side by side in the ring-shaped water jacket 2 on the support 1; Rotor driven end 16 is provided with fan blade; When rotor rotated, the air outlet of wind along the air intake vent of the straight-through airduct 5 of the water jacket at rotor driven end place to the straight-through airduct 5 of the water jacket at rotor anti-drive end 17 places blown over anti-drive end stator winding end 11; Parallel again along annulus gap 12, rotor axial air duct 18; And rotor radial air duct 14 gets back to the air intake vent of straight-through airduct 5 of the water jacket at rotor driven end place, forms the circulation cooling air duct, ring-shaped water jacket 2 interval be provided with backflow airduct 7; The inner ring of the air inlet annular endplate 3 of ring-shaped water jacket is provided with annular fan shroud 21; The air outlet annular endplate 4 of ring-shaped water jacket is provided with U-shaped pipe 6, and an end of U-shaped pipe 6 is communicated with the air intake vent of backflow airduct 7, and the other end of U-shaped pipe 6 is communicated with the air outlet of a straight-through airduct adjacent with backflow airduct 7 that is arranged side by side; The air outlet 8 of backflow airduct 7 is arranged on the inboard of annular fan shroud 21, and the cold wind that blows out is blown on the drive end stator winding end 10; On rotor core 13, evenly be provided with the radial ducts 14 that is communicated with rotor axial air duct 18, in radial ducts 14, be provided with partition 15, partition 15 is provided with at the first-class radian of same circumference of radial ducts 14 at interval; When rotor rotated, this group partition increased the flow of rotor apoplexy just as the blade of fan; Simultaneously; Partition 15 plays the effect of rotor core section at interval when the processing rotor iron core, the width of radial ducts is 0.16-0.25 with the width of core packet ratio.
Be provided with at the air outlet place of rotor axial air duct 18 taper keep out the wind the tube 19; The ventilation hole of rotor axial air outlet is obviously reduced than the air inlet place; Strengthened the windage in the axial wind path; Force coolant not only through rotor axial but also through radially flowing out behind the wind path again, fully take away the rotor heat, the ventilation hole radius ratio at general rotor inlet and outlet place is about 2.5.
Stator winding notch height L2 in the stator core 9 is 4-8 with the ratio of the radial height L1 of annulus gap, makes the draught area several times of passing through annulus gap increase.
The wind path of the cold generator of water jacket; Be included in the annulus gap that forms between rotor axial, radial ducts, stator and the rotor that is provided with in the rotor core and be fixed on the straight-through airduct that is arranged side by side in the ring-shaped water jacket on the support; The rotor driven end is provided with fan blade; When rotor rotated, coolant blew out from anti-drive end after the process water jacket is cooled from getting into, and gets into the generator body; Respectively through between the rotor along the straight-through airduct that gets into drive end after annulus gap, rotor axial, radial ducts are taken away the heat of generator once more, form the circulation cooling air duct.The present invention is through the ratio of the radial height L1 of notch height L2 and annulus gap in the increase stator core, and this ratio is 4-8, is guaranteeing under the constant situation of the electric air gap of generator; Increased the cooling medium consumption in the rotor air gap; And be provided with the rotor radial wind path, and on rotor core, evenly be provided with the radial ducts that is communicated with the rotor axial air duct, in radial ducts, be provided with partition; Partition is provided with at the first-class radian of same circumference of radial ducts at interval; Increase the area of dissipation of rotor, be provided with the taper tube that keeps out the wind at the air outlet place of rotor axial air duct, stopped the short circuit phenomenon of rotor wind path; Force coolant through the air gap between rotor radial air duct and the rotor, flow out again after fully taking away the heat of rotor winding.
The present invention is provided with the backflow airduct in ring-shaped water jacket; Coolant is through the straight-through laggard U-shaped pipe of going into to be arranged on the air outlet annular endplate of airduct; The two ends of U-shaped pipe link with two straight-through airducts respectively; Coolant gets into another straight-through airduct after through the U-shaped pipe and flows out from the backflow airduct air outlet that is arranged in the stator winding end outside, and coolant is back to stator winding end, reaches the purpose of cooling stator winding end.
Claims (3)
1. the wind path of the cold generator of water jacket; Be included in the annulus gap (12) that forms between rotor axial air duct (18), stator and the rotor that is provided with in the rotor core (13) and be fixed on the straight-through airduct (5) that is arranged side by side in the ring-shaped water jacket (2) on the support (1); Rotor driven end (16) is provided with fan blade; When rotor rotates; The air outlet of the straight-through airduct (5) of the water jacket that wind is located along the air intake vent of the straight-through airduct (5) of the water jacket at rotor driven end place to rotor anti-drive end (17); The air intake vent of the straight-through airduct (5) of the parallel again water jacket of getting back to rotor driven end place along annulus gap (12) and rotor axial air duct (18), formation circulation cooling air duct is characterized in that; In ring-shaped water jacket (2), be provided with backflow airduct (7); Air inlet annular endplate (3) inner ring of ring-shaped water jacket is provided with annular fan shroud (21), and the air outlet annular endplate (4) of ring-shaped water jacket is provided with U-shaped pipe (6), and an end of U-shaped pipe (6) is communicated with the air intake vent of backflow airduct (7); The air outlet of a straight-through airduct in the other end of U-shaped pipe (6) and the straight-through airduct (5) that is arranged side by side is communicated with, and the air outlet (8) of backflow airduct (7) is arranged on the inboard of annular fan shroud (21); On rotor core (13), evenly be provided with the radial ducts (14) that is communicated with rotor axial air duct (18); In radial ducts (14), be provided with partition (15), partition (15) is provided with at the first-class radian of same circumference of radial ducts (14) at interval.
2. the wind path of the cold generator of a kind of water jacket according to claim 1 is characterized in that, be provided with at the air outlet place of rotor axial air duct (18) taper keep out the wind the tube (19).
3. the wind path of the cold generator of a kind of water jacket according to claim 1 and 2 is characterized in that, the stator winding notch height L2 (20) in the stator core (9) is 4-8 with the ratio of the radial height L1 of annulus gap (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204703718U CN202334146U (en) | 2011-11-23 | 2011-11-23 | Air path of water jacket cooling generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204703718U CN202334146U (en) | 2011-11-23 | 2011-11-23 | Air path of water jacket cooling generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334146U true CN202334146U (en) | 2012-07-11 |
Family
ID=46446112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204703718U Withdrawn - After Issue CN202334146U (en) | 2011-11-23 | 2011-11-23 | Air path of water jacket cooling generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11837943B2 (en) | 2019-12-20 | 2023-12-05 | Volvo Car Corporation | Rotor air cooling system |
-
2011
- 2011-11-23 CN CN2011204703718U patent/CN202334146U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11837943B2 (en) | 2019-12-20 | 2023-12-05 | Volvo Car Corporation | Rotor air cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120711 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |