CN114142637A - Megawatt high-power high-speed motor wind path structure - Google Patents
Megawatt high-power high-speed motor wind path structure Download PDFInfo
- Publication number
- CN114142637A CN114142637A CN202111436803.8A CN202111436803A CN114142637A CN 114142637 A CN114142637 A CN 114142637A CN 202111436803 A CN202111436803 A CN 202111436803A CN 114142637 A CN114142637 A CN 114142637A
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- CN
- China
- Prior art keywords
- air
- stator
- speed motor
- megawatt
- path structure
- 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.)
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Links
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000004080 punching Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000009423 ventilation Methods 0.000 abstract description 45
- 239000007787 solid Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
Abstract
The invention discloses a megawatt high-power high-speed motor air path structure which comprises a base, a rotor, a stator and a cooler, wherein the base is a box-type base, the rotor is connected with the base through an end cover and a bearing, an inner fan is not arranged on a rotor shaft, the stator is fixed on the base, middle support plates are arranged at two ends of the stator, a plurality of inlet cavities and ventilation holes are formed in the outer wall of the stator, a plurality of ventilation channels are formed in the stator, the cooler is arranged at the top end of the base and communicated with the inside of the base, and the motor air path structure is of a symmetrical structure. The wind path structure of the motor can reduce the wind resistance of the whole machine and can fully meet the cooling effect of cooling the solid rotor.
Description
Technical Field
The invention relates to the technical field of motors, in particular to an air path structure of a megawatt high-power high-speed motor.
Background
Different from a common motor, a high-speed motor generally adopts a permanent magnet structure, but is not suitable for megawatt-level high-power application occasions, and generally adopts a solid rotor structure to ensure that a rotor has enough strength, but the eddy current loss of the rotor is serious, and the friction loss of the surface of the rotor is large when the rotor runs at a high rotating speed, so that the heating problem of the rotor is prominent. Especially, for a megawatt-level high-power high-speed motor, the key problems of small heat dissipation area, large loss density, overhigh temperature rise and the like caused by compact structure and more voltage harmonics need to be solved.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the embodiment of the invention provides an air path structure of a megawatt high-power high-speed motor, which has smaller overall wind resistance and can fully meet the cooling effect of cooling a solid rotor.
The megawatt high-power high-speed motor air path structure comprises a machine base, a rotor, a stator and a cooler.
The stator is fixed on the base and is formed by a plurality of punching sheets which are distributed at intervals along the axial direction, two ends of the stator are respectively provided with a middle support plate, the middle support plate divides the interior of the base into two air inlet areas and an air outlet area, and the stator is positioned in the air outlet area;
the middle support plate is provided with a plurality of air inlets which are distributed at intervals along the circumferential direction of the middle support plate, the outer wall of the stator is also provided with a plurality of separating covers which form a plurality of inlet cavities, the plurality of inlet cavities are distributed on the outer wall of the stator at intervals along the circumferential direction, the inlet cavities are communicated with the air inlet area, a plurality of first gaps or a plurality of second gaps are arranged between the punching sheets, the first gaps and the second gaps are sequentially distributed at intervals along the axial direction in an alternating manner, the first gaps are provided with a plurality of first ventilation channels and a plurality of fourth ventilation channels which are distributed along the circumferential direction, the first ventilation channels and the fourth ventilation channels are separated by first ventilation slot pieces, the second gaps are provided with a plurality of second ventilation channels and a plurality of third ventilation channels which are distributed along the circumferential direction, and the second ventilation channels and the third ventilation channels are separated by second ventilation slot pieces, the first ventilation channel or the fourth ventilation channel is communicated with the inlet cavity and the tooth part of the stator, and the second ventilation channel or the third ventilation channel is communicated with the tooth part of the stator and the air outlet area;
the cooler is arranged on the top end of the base and fixedly connected with the base, the air inlet of the cooler is communicated with the air outlet area, and the air outlet of the cooler is communicated with the air inlet area.
In some embodiments, the separation hood comprises a plurality of support webs and a plurality of cover plates.
In some embodiments, a circular ring plate is further provided, the circular ring plate is arranged in the middle section of the iron core, the iron core is symmetrical relative to the circular ring plate, and the circular ring plate is used for dividing the iron core into two sections.
In some embodiments, the first vent slot piece and the second vent slot piece are both of a bent structure, and the bending directions of the first vent slot piece and the second vent slot piece are opposite.
In some embodiments, there are 6 inlet cavities and 12 outlet cavities, wherein there is one inlet cavity for each two outlets.
In some embodiments, the cooler has two water-cooled cores, which are symmetrically distributed.
In some embodiments, a centrifugal fan is arranged at the outlet of the water cooling core body.
In some embodiments, a first flow guide plate and a second flow guide plate are further provided, the first flow guide plate is arranged between the two water-cooling cores, and the second flow guide plate is arranged below the centrifugal fan.
In some embodiments, the first baffle is a Y-shaped structure.
In some embodiments, the megawatt high-power high-speed motor air path structure is a symmetrical structure, and the megawatt high-power high-speed motor air path structure is symmetrically distributed relative to the center of the megawatt high-power high-speed motor air path structure.
The invention has the following beneficial effects:
1. the motor adopts a symmetrical air path structure and has a compact structure.
2. The rotor is not provided with a fan part, a main air path in the motor mainly depends on the action of a centrifugal fan in the cooler to blow air into the back of the stator from the outlet of the cooler, and CFD simulation analysis shows that the air path is smooth.
3. The wind speed distribution of the back of the stator and the radial ventilation duct is uniform, the integral temperature distribution of the stator and the coil is concentrated, and the integral temperature difference change is small.
4. The heat source in the solid rotor is subjected to convection enhancement heat transfer at the air gap between the stator and the rotor through cooling gas, the heat of the rotor part is taken away, the highest temperature of the middle section of the solid rotor is reduced by 25% -30% compared with that of a box type motor with a conventional air path structure, and the ventilation and heat dissipation effects of a megawatt-level high-power high-speed motor are met.
5. The wind path structure complete machine wind resistance of the stator back as the main air inlet area and the stator circumferential partition is smaller, and the cooling effect of cooling the solid rotor can be fully met.
6. The first ventilating slot piece and the second ventilating slot piece are used for enhancing the structural strength of the ventilating channel and have a drainage effect.
Drawings
FIG. 1 is a schematic view of an air path structure of a megawatt high-power high-speed motor according to an embodiment of the invention;
FIG. 2 is a schematic view of a portion of a stator according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a stator lamination of an embodiment of the present invention;
FIG. 4 is a cross-sectional view of another stator lamination in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of an intermediate support plate according to an embodiment of the present invention;
FIG. 6 is a schematic view of an air path flow according to an embodiment of the present invention.
FIG. 7 is a schematic view of the stator external air path flow according to the embodiment of the present invention;
FIG. 8 is a schematic view of the stator inner duct flow according to the embodiment of the present invention;
FIG. 9 is a schematic view of another stator inner air path flow according to the embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the megawatt high-power high-speed motor air path structure according to the embodiment of the invention includes a base 1, a rotor 2, a stator 3, and a cooler 10.
Specifically, the base 1 is a box-type base, end covers are arranged at two ends of the base respectively, bearings are arranged on the end covers, two ends of the rotor 2 are in running fit with the bearings respectively, the rotor 2 comprises a rotor solid rotating shaft and a rotor guide bar, two ends of the rotor guide bar are welded tightly after being in expansion joint with a copper end ring, and a steel ring component with a balancing effect is arranged at the end part.
The stator shown in fig. 2 is half of the whole stator 3, the other half has the same structure with the whole stator, the two are distributed symmetrically left and right, and the two are separated by a circular ring plate. The stator 3 is sleeved on the rotor 2, the stator 3 is a hollow cylinder, the stator is formed by laminating punching sheets, and the punching sheets are evenly distributed along the axial direction of the stator 3 at intervals. Be equipped with on the 3 outer walls of stator along 3 circumference of stator and axial interval distribution's of stator ventilation hole, the ventiduct that every ventilation hole intercommunication corresponds. Two ends of the stator 3 are respectively provided with a middle support plate 8, the middle support plate 8 divides the interior of the machine base 1 into an air inlet area at two sides and an air outlet area at the middle, and the stator 3 is positioned in the air outlet area.
A plurality of inverted U-shaped separation covers are distributed on the outer wall of the stator 3 at intervals along the circumference, each separation cover extends along the axial direction, and each separation cover is formed by connecting a cover plate 7 and support rib plates 6 on two sides.
An inlet cavity is formed between each partition cover and the outer wall of the stator, and the number of the inlet cavities is 6, and the inlet cavities are evenly distributed on the outer wall of the stator 3 at intervals along the circumferential direction. An open outlet cavity is formed between adjacent separating hoods.
Gaps are formed between every two stamped sheets on the stator respectively and respectively are a first gap and a second gap, and the first gap and the second gap are sequentially and alternately distributed along the axial direction of the stator.
The first gap is provided with a first air passage A and a fourth air passage D, and the second gap is provided with a second air passage B and a third air passage C. Much more. The first ventilation channel A, the second ventilation channel B, the third ventilation channel C and the fourth ventilation channel D are all radial ventilation channels.
The first ventilation channel A and the fourth ventilation channel D are inclined along the clockwise direction and are circumferentially distributed in the first gap, and the adjacent first ventilation channel A or the fourth ventilation channel D are separated by the first ventilation slot sheet 4. The radial inner ends of the first ventilation channel A and the fourth ventilation channel D extend to the tooth part of the stator 3. The radial outer end of the first ventilation channel A at the first clearance position is communicated with the inlet cavity, and the radial outer end of the fourth ventilation channel D at the first clearance position is communicated with the outlet cavity.
The second ventilation channel B and the third ventilation channel C are circumferentially distributed between the two punching sheets along the anticlockwise direction, and the adjacent second ventilation channel B or the third ventilation channel C are separated by a second ventilation groove sheet 5. The radial inner end of the second ventilation channel B or the third ventilation channel C extends to the tooth part of the stator 3. The radial outer end of the second air passage B at the first clearance position is communicated with the outlet cavity, and the radial outer end of the third air passage C at the second clearance position is communicated with the inlet cavity.
Twelve air inlets are formed in the middle support plate 8, wherein each two air inlets form a pair of air inlet groups, six air inlet groups are evenly distributed at intervals along the circumferential direction of the middle support plate 8, each air inlet group corresponds to one inlet cavity, and the air inlets are communicated with the inlet cavities and the air inlet area. The cooler 10 is arranged above the base 1, an air inlet of the cooler is communicated with an air outlet area of the base 1, and the cooler is provided with two air outlets which are respectively communicated with the two air inlet areas of the base 1. The cooler 10 is internally provided with two water-cooling core bodies 101 which are symmetrically distributed, the outlets of the two water-cooling core bodies 101 are respectively provided with a centrifugal fan 102, a first guide plate 103 is arranged between the two water-cooling core bodies 101, the first guide plate 103 is of a Y-shaped structure, and the first guide plate 103 divides the air inlet of the cooler into two parts which respectively correspond to the inlets of the two water-cooling core bodies 101. A second guide plate 104 is arranged below the centrifugal fan 102, two ends of the second guide plate 104 are respectively connected with the base 1 and the centrifugal fan 102, and the second guide plate 104 and the inner wall of the cooler form a bell mouth, and the specific shape is shown in fig. 1. The centrifugal fan 102 is driven by a drive motor which is fixedly mounted in the cooler 10.
The whole megawatt high-power high-speed motor air path structure is symmetrically distributed about the center of the megawatt high-power high-speed motor air path structure.
According to the megawatt high-power high-speed motor air path structure provided by the embodiment of the invention, when the motor starts to work, cold air enters the air inlet area of the base 1 under the power action of the centrifugal fan 102 and is guided by the second guide plate 104, and the cold air flows above the coil at the end part of the stator 3 and enters the air inlet cavity from the air inlet of the middle support plate 8. The cold air reaches the tooth portion of the stator 3 through the first ventilation duct a or the third ventilation duct C, and finally flows into the air gap between the stator 3 and the rotor 2. The hot air flows out of the stator through the tooth part of the stator 3, flows out of the stator along the second ventilation channel B or the fourth ventilation channel D and enters the air outlet area through the outlet cavity. The hot air flow is guided by the first guide plate 103 and finally flows into the cooler 10, and is cooled down by the water-cooled core 101, and then flows into the base 1 again along the second guide plate 104 by the suction force of the centrifugal fan, and the next cooling flow circulation of the internal air duct is started.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and unless otherwise stated the above words are not intended to have a special meaning.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a megawatt level high-power high-speed motor wind path structure which characterized in that includes:
a machine base;
the rotor is provided with a plurality of rotor blades,
the stator is fixed on the base and is formed by a plurality of punching sheets which are distributed at intervals along the axial direction, two ends of the stator are respectively provided with a middle support plate, the middle support plate divides the interior of the base into two air inlet areas and one air outlet area, and the stator is positioned in the air outlet area;
the middle support plate is provided with a plurality of air inlets which are distributed at intervals along the circumferential direction of the middle support plate;
the stator is characterized in that a plurality of separating covers are further arranged on the outer wall of the stator, a plurality of inlet cavities are formed by the separating covers and are circumferentially distributed on the outer wall of the stator at intervals, the inlet cavities are communicated with the air inlet area, an open outlet cavity is formed between two adjacent inlet cavities, and the outlet cavity is communicated with the air outlet area;
gaps are formed among the punching sheets respectively, the gaps comprise a first gap and a second gap, the first gap and the second gap are sequentially distributed at intervals in an alternating mode along the axial direction, the first gap is provided with a plurality of first air channels and a plurality of fourth air channels which are distributed along the circumferential direction, the first air channels and the fourth air channels are separated through first air slot pieces, the second gap is provided with a plurality of second air channels and a plurality of third air channels which are distributed along the circumferential direction, the second air channels and the third air channels are separated through second air slot pieces, the first air channels or the fourth air channels are communicated with the inlet cavity and the tooth part of the stator, and the second air channels or the third air channels are communicated with the tooth part of the stator and the outlet cavity;
the cooler is arranged on the top end of the base and fixedly connected with the base, the air inlet of the cooler is communicated with the air outlet area, and the air outlet of the cooler is communicated with the air inlet area.
2. The wind path structure of a megawatt high-power high-speed motor according to claim 1, wherein the separation cover comprises two supporting rib plates and a cover plate.
3. The wind path structure of a megawatt high-power high-speed motor according to claim 1, further comprising a circular plate disposed at the middle section of the stator, wherein the stator is symmetrical to the circular plate, and the circular plate is used to divide the stator into two sections.
4. The wind path structure of the megawatt high-power high-speed motor according to claim 1, wherein the first ventilating slot and the second ventilating slot are both bent and bent in opposite directions.
5. The structure of an air path for a megawatt high-power high-speed motor of claim 1, wherein the number of the inlet cavities is 6, the number of the air outlets is 12, and each two air outlets corresponds to one inlet cavity.
6. The structure of the wind path of a megawatt high-power high-speed motor as claimed in claim 1, wherein the cooler has two water-cooling cores, and the two water-cooling cores are symmetrically distributed.
7. The wind path structure of the megawatt high-power high-speed motor according to claim 6, wherein a centrifugal fan is disposed at an outlet of the water-cooling core body.
8. The wind path structure of the megawatt high-power high-speed motor according to claim 7, further comprising a first flow guiding plate and a second flow guiding plate, wherein the first flow guiding plate is disposed between the two water-cooled cores, and the second flow guiding plate is disposed below the centrifugal fan.
9. The structure of the wind path of a megawatt high power high speed motor of claim 8, wherein the first baffle is a Y-shaped structure.
10. The megawatt high-power high-speed motor air path structure according to claim 1, wherein the megawatt high-power high-speed motor air path structure is distributed in bilateral symmetry with respect to the center thereof.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021114167433 | 2021-11-26 | ||
| CN202111416743 | 2021-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114142637A true CN114142637A (en) | 2022-03-04 |
| CN114142637B CN114142637B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111436803.8A Active CN114142637B (en) | 2021-11-26 | 2021-11-30 | Megawatt high-power high-speed motor wind path structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN114142637B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116683700A (en) * | 2023-08-03 | 2023-09-01 | 山西电机制造有限公司 | Internal cooling air path optimizing structure of automobile chassis dynamometer motor |
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| WO2008043354A2 (en) * | 2006-10-14 | 2008-04-17 | Antriebstechnik Katt Hessen Gmbh | Cooling system for highly utilized rotating electrical machines |
| CN201869024U (en) * | 2010-11-30 | 2011-06-15 | 东方电气集团东方电机有限公司 | Ventilation structure of permanent magnet generator |
| CN103023217A (en) * | 2012-12-18 | 2013-04-03 | 上海电机学院 | Overall machine wind path structure of high-power and high-peed permanent magnet synchronous motor |
| CN106655596A (en) * | 2016-11-21 | 2017-05-10 | 中车永济电机有限公司 | Internal-external dual-circulating type self-ventilation cooling structure of totally-enclosed motor |
| CN210927353U (en) * | 2019-11-08 | 2020-07-03 | 卧龙电气南阳防爆集团股份有限公司 | Low-vibration low-noise vertical motor |
| CN112260485A (en) * | 2020-11-30 | 2021-01-22 | 卧龙电气南阳防爆集团股份有限公司 | Double-pumping interactive high-power-density motor |
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2021
- 2021-11-30 CN CN202111436803.8A patent/CN114142637B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008043354A2 (en) * | 2006-10-14 | 2008-04-17 | Antriebstechnik Katt Hessen Gmbh | Cooling system for highly utilized rotating electrical machines |
| EP2076956A2 (en) * | 2006-10-14 | 2009-07-08 | Antriebstechnik Katt Hessen GmbH | Cooling system for highly utilized rotating electrical machines |
| CN201869024U (en) * | 2010-11-30 | 2011-06-15 | 东方电气集团东方电机有限公司 | Ventilation structure of permanent magnet generator |
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| CN106655596A (en) * | 2016-11-21 | 2017-05-10 | 中车永济电机有限公司 | Internal-external dual-circulating type self-ventilation cooling structure of totally-enclosed motor |
| CN210927353U (en) * | 2019-11-08 | 2020-07-03 | 卧龙电气南阳防爆集团股份有限公司 | Low-vibration low-noise vertical motor |
| CN112260485A (en) * | 2020-11-30 | 2021-01-22 | 卧龙电气南阳防爆集团股份有限公司 | Double-pumping interactive high-power-density motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116683700A (en) * | 2023-08-03 | 2023-09-01 | 山西电机制造有限公司 | Internal cooling air path optimizing structure of automobile chassis dynamometer motor |
| CN116683700B (en) * | 2023-08-03 | 2023-10-27 | 山西电机制造有限公司 | Internal cooling air path optimizing structure of automobile chassis dynamometer motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114142637B (en) | 2024-04-12 |
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