CN113794313A - Air-cooled motor - Google Patents
Air-cooled motor Download PDFInfo
- Publication number
- CN113794313A CN113794313A CN202111106340.9A CN202111106340A CN113794313A CN 113794313 A CN113794313 A CN 113794313A CN 202111106340 A CN202111106340 A CN 202111106340A CN 113794313 A CN113794313 A CN 113794313A
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- Prior art keywords
- air
- channel
- stator
- rotor
- cooled motor
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- Pending
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- 238000001816 cooling Methods 0.000 claims abstract description 20
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 abstract description 11
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 45
- 230000017525 heat dissipation Effects 0.000 description 8
- 238000003825 pressing Methods 0.000 description 8
- 239000011324 bead Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- 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
- 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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses an air-cooled motor which comprises a base, a stator, a rotor and end cover assemblies respectively arranged at two ends of the base, wherein the base is provided with an air inlet and an air outlet, the base is axially provided with a stator ventilating channel which is communicated with the air inlet and the air outlet and is used for cooling the stator, the end cover assemblies are respectively provided with an air inlet channel and an air exhaust channel in a penetrating way, and the air-cooled motor also comprises a drainage assembly which drives air flow to flow from the air inlet channel to the air exhaust channel. The air-cooled motor provided by the invention can fully dissipate heat of each part of the motor, such as the end part of the stator winding, the rotor and the bearing, reduce the temperature rise of the corresponding part, prolong the service life of the air-cooled motor and simultaneously facilitate the improvement of the power density of the air-cooled motor.
Description
Technical Field
The invention relates to the field of motors, in particular to an air cooling motor.
Background
The existing permanent magnet motor mostly adopts an internal totally-enclosed structure, and is mainly cooled in a stator ventilation mode, and due to the fact that the rotor has large heat dissipation resistance, the phenomenon that magnetic steel and a bearing are over-heated easily occurs. After entering the motor, the cooling medium flows through the air duct between the base and the stator to cool the motor, and the temperature of the stator winding end, the rotor and the bearing is higher due to large thermal resistance and poor heat dissipation effect of the stator winding end and the rotor. The over-high temperature of the stator can lead to the reduction of the insulation life, the temperature rise of the rotor of the permanent magnet motor can directly lead to the demagnetization of the permanent magnet, the temperature rise of the bearing can lead to the reduction of the service life of the bearing, and even the damage can lead to the incapability of running the motor.
How to improve the heat dissipation of the motor and further prolong the service life of the motor becomes a technical problem to be solved by technical personnel in the field.
Disclosure of Invention
The invention aims to provide an air-cooled motor, which has the advantages of improving the heat dissipation performance, prolonging the service life and correspondingly improving the power density.
In order to achieve the purpose, the invention provides an air-cooled motor which comprises a base, a stator, a rotor and end cover assemblies respectively arranged at two ends of the base, wherein the base is provided with an air inlet and an air outlet, the base is provided with a stator ventilating channel which is communicated with the air inlet and the air outlet and used for cooling the stator along the axial direction, the end cover assemblies are respectively provided with an air inlet channel and an air exhaust channel in a penetrating way, and the air-cooled motor also comprises a drainage assembly which drives air flow to flow from the air inlet channel to the air exhaust channel.
Optionally, the end cover assembly includes a transmission end cover and a non-transmission end cover, the air inlet channel includes a first air inlet channel provided on the transmission end cover and a second air inlet channel provided on the non-transmission end cover, the air exhaust channel includes a first air exhaust channel provided on the transmission end cover and a second air exhaust channel provided on the non-transmission end cover, the first air inlet channel and the second air inlet channel are coaxially arranged, and the first air exhaust channel and the second air exhaust channel are coaxially arranged.
Optionally, the drainage component is including locating separately transmission end blade and the non-transmission end blade at rotor both ends, transmission end blade with the non-transmission end blade is all followed the axial extension of rotor, just transmission end blade is located first inlet air channel with between the first exhaust passage, non-transmission end blade is located second inlet air channel with between the second exhaust passage.
Optionally, both ends of the rotor are provided with rotor end plates, and the transmission end blades and the non-transmission end blades are fixedly connected to the rotor end plates.
Optionally, the flow guiding assembly includes an air supply device disposed in the air inlet channel, and/or the flow guiding assembly includes an air inducing device disposed in the air exhaust channel.
Optionally, the air inlet channel and the air exhaust channel are both provided with dust filtering components.
Optionally, annular stator wind shielding plates are respectively arranged on the inner peripheries of the two ends of the stator, and the stator wind shielding plates shield an air gap between the stator and the rotor.
Optionally, a labyrinth seal is provided between the stator wind deflector and the rotor end plate.
Optionally, the stator deep bead is followed the internal radial orientation of air-cooled motor the rotor end plate extends, the periphery of rotor end plate is equipped with along the protruding sealed arch of establishing of axial, sealed bellied end be equipped with to the internal radial of air-cooled motor is retracted dodges the groove.
Optionally, the cross-sectional shapes of the air inlet channel and the air exhaust channel are the same.
Compared with the prior art, the air-cooled motor provided by the invention has the advantages that air is fed through the air inlet, cooling air flows through the stator ventilation channel to cool the stator and the end part of the stator winding, the air inlet channel and the air exhaust channel are formed in the end cover assemblies, the two ends of the stator are matched with the base to seal the stator and the rotor, and the air guide assembly is used for driving cold air to enter the air-cooled motor through the air inlet channel to cool the rotor and the bearing at the end part, so that the heat dissipation performance of the rotor and the bearing is improved, the temperature rise is reduced, the limitation of the heat dissipation on the motor power is broken through, the power density of the air-cooled motor is conveniently improved, and the service life of the air-cooled motor is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a sectional view of an air-cooled motor according to an embodiment of the present invention;
fig. 2 is a schematic view of the sealing of the air gap between the stator and the rotor of fig. 1.
Wherein:
1-air inlet, 2-non-transmission end cover, 3-second air exhaust channel, 4-non-transmission end blade, 5-second air inlet channel, 6-non-transmission end bearing, 7-non-transmission end pressing ring, 8-rotor end plate, 9-rotor, 10-rotating shaft, 11-stator, 12-transmission end pressing ring, 13-transmission end bearing, 14-first air inlet channel, 15-transmission end blade, 16-first air exhaust channel, 17-transmission end cover, 18-air outlet, 19-stator wind shield, 20-base, 21-stator tooth pressing plate and 22-stator ventilation channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, fig. 1 is a cross-sectional view of an air-cooled motor according to an embodiment of the present invention, and fig. 2 is a schematic view illustrating sealing of an air gap between a stator and a rotor in fig. 1.
The air-cooled motor provided by the invention comprises a base 20, a rotor 9, a stator 11 and an end cover assembly, wherein the end cover assembly is matched with the base 20 to encapsulate the stator 11 and the rotor 9, so that the damage of external impurities to a winding of the stator 11 is avoided. In order to guarantee the cooling effect of the air-cooled motor and reduce the temperature rise of the air-cooled motor, the power density of the air-cooled motor is improved, and the service life of the air-cooled motor is prolonged. In the invention, one end of a machine base 20 is provided with an air inlet 1, the other end is provided with an air outlet 18, a stator ventilating duct 22 is arranged on the machine base 20 along the axial direction, the stator ventilating duct 22 is communicated with the air inlet 1 and the air outlet 18, and a cooling medium such as air flows in from the air inlet 1, flows through the stator ventilating duct 22 and then flows out from the air outlet 18 to cool a stator 11. To improve the cooling effect, the outer wall of the partial section of the stator 11 serves as the inner wall of the stator air duct 22, so that the cooling air flow directly carries out the convective heat exchange with the stator 11.
In addition, the end cover assemblies at two ends of the rotor 9 are provided with an air inlet channel and an air exhaust channel which are communicated with the end cover assemblies, cooling air enters the air-cooled motor from the air inlet channel by virtue of the drainage assembly, and the winding coil, the rotor 9 and the bearing at the end part of the stator 11 are fully cooled and then exhausted from the air exhaust channel. The temperature rise of the stator 11, the rotor 9 and the bearing is obviously reduced, the overtemperature of the bearing is avoided, and the service life of the air-cooled motor is prolonged. On the other hand, good heat dissipation performance is beneficial to the air-cooled motor to break through the limitation of temperature on power density, and the power density of the air-cooled motor is improved.
Specifically, as shown in fig. 1, the rotor 9 is provided with a rotating shaft 10, one end of the rotating shaft 10 is used for driving the rotating mechanism to rotate, i.e., is a transmission end, the other end is a non-transmission end, the transmission end is supported by a transmission bearing and a bearing seat, and the non-transmission end is supported by a non-transmission end bearing 6 and a bearing seat. The end cover component correspondingly comprises a transmission end cover 17 and a non-transmission end cover 2, and the transmission end cover 17 and the non-transmission end cover 2 are both connected with the bearing seat in a matching mode. The air inlet channel comprises a first air inlet channel 14 arranged on the transmission end cover 17 and a second air inlet channel 5 arranged on the non-transmission end cover 2; the exhaust channel correspondingly comprises a first exhaust channel 16 arranged on the driving end cover 17 and a second exhaust channel 3 arranged on the non-driving end cover 2.
The air inlet channel and the air exhaust channel are preferably set to be the same in cross-sectional shape and size, so that cooling air flow can circulate quickly. The first air intake channel 14 and the second air intake channel 5 are preferably coaxially arranged, and the first exhaust channel 16 and the second exhaust channel 3 are coaxially arranged. On the whole, the first air inlet channel 14 is arranged on the radial inner side of the transmission end cover 17, the first air exhaust channel 16 is arranged on the radial outer side of the transmission end cover 17, the first air inlet channel 14 and the first air exhaust channel 16 can be respectively provided with a plurality of groups along the circumferential direction of a preset radius according to needs, and the arrangement of the second air inlet channel 5 and the second air exhaust channel 3 refers to the first air inlet channel 14 and the first air exhaust channel 16. It should be noted that the arrangement of the flow guiding assembly should meet the requirement of promoting the external cooling wind to enter the interior of the motor through the first wind inlet channel 14 and the second wind inlet channel 5, cooling the winding coil at the end of the stator 11, the rotor 9, the driving end bearing 13 and the non-driving end bearing 6, and discharging from the first wind discharging channel 16 and the second wind discharging channel 3.
In one embodiment of the present invention, the flow guiding assembly comprises a driving end blade 15 and a non-driving end blade 4 fixed to two ends of the rotor 9, respectively, and both extend along the axial direction of the rotor 9 and are opened from opposite positions in the radial direction, the driving end blade 15 is located between the first air inlet channel 14 and the first air outlet channel 16, and the non-driving end blade 4 is located between the second air inlet channel 5 and the second air outlet channel 3. When the rotor 9 rotates, the driving end blades 15 and the non-driving end blades 4 fixed at two ends of the rotor 9 are driven to rotate, the driving end blades 15 are matched with the rotor 9 and act as a centrifugal fan at the driving end, air between the driving end blades 15 and the rotating shaft 10 flows to the space between the driving end blades 15 and the stator 11 to be driven, a certain negative pressure is generated between the driving end blades 15 and the rotating shaft 10, and the outside is attracted to penetrate through the first air inlet channel 14 to enter the interior of the motor; the driving end blades 15 generate a certain positive pressure with the stator 11, and promote the air to be discharged through the first exhaust passage 16.
After cooling air flow enters the motor from the first air inlet channel 14, the end part of the rotor 9 and the bearing seat can be fully cooled, and the bearing is prevented from being over-heated; meanwhile, when cooling air flows in the motor, the winding coil at the end part of the stator 11 is cooled, and the overtemperature of the end part of the motor is avoided. The working processes of the non-transmission end blade 4, the second air inlet channel 5 and the second air exhaust channel 3 at the non-transmission end of the motor are the same as those of the transmission end blade 15, the first air inlet channel 14 and the first air exhaust channel 16, and the description is omitted here. It is to be understood that the present application is not particularly limited to the shapes of the driving end blades 15 and the non-driving end blades 4, and is applicable to the present application as long as the air flow can be driven to flow in the radial direction of the motor while following the rotation of the rotor 9.
To improve the reliability of the air gap seal, a labyrinth seal is used between the stator wind deflector 19 and the rotor end plate 8, as shown in fig. 2. The annular stator wind shield 19 extends towards the rotor end plate 8 along the inner radial direction, a sealing bulge extending in an axial direction in a turning mode is arranged on the periphery of the rotor end plate 8, an avoiding groove is formed in the outer circumference of the sealing bulge, the stator wind shield 19 extends into the avoiding groove, a preset gap is formed between the stator 11 wind shield and the groove bottom of the avoiding groove, and the rotor 9 can rotate relative to the stator 11; the predetermined gap is blocked by the side wall of the escape slot to prevent impurities from entering the air gap between the stator 11 and the rotor 9 through the seal between the stator wind shield 19 and the rotor end plate 8.
The beneficial effects of the above embodiment are that, the cooling of the transmission end and the non-transmission end does not need to be by means of an external power mechanism, and the rotor 9 can realize the cooling of the transmission end and the non-transmission end by driving the transmission end blades 15 and the non-transmission end blades 4 to rotate while rotating.
In another embodiment of the present invention, the flow guiding assembly may further include a blower, such as a blower, installed in the air inlet passage, and the blower is connected to the air inlet passage through a pipe. An air inducing device such as an exhaust fan can also be arranged in the air exhaust channel, and the exhaust fan can be connected with the air exhaust channel by virtue of a pipeline. The air supply device and the air inducing device are used for driving external air to flow through the air inlet channel and the air exhaust channel inside the motor, and the driving end and the non-driving end of the motor are cooled.
In the above embodiment, in order to reduce the air gap between the rotor 9 and the stator 11 where dust and impurities enter, the rotor end plate 8 and the stator wind shield 19 are used for sealing in a matching manner, and a dust filtering component can be further arranged on the air inlet channel and the air exhaust channel, and the dust filtering component can adopt a filter screen with a preset specification, so that the flow resistance of the air inlet channel and the air exhaust channel is reduced as much as possible while the dust filtering effect is ensured.
The invention provides an air-cooled motor, which can simultaneously improve the heat dissipation performance of a stator winding end part, a rotor 9 and a bearing, reduce the temperature of the winding end part, a permanent magnet, the bearing and other parts, improve the power density and the torque density of the motor and prolong the service life of the air-cooled motor. Stator deep bead 19 is fixed on stator tooth clamp plate 21, and 8 excircle archs of rotor end plate, and stator deep bead 19 and rotor end plate 8 adopt labyrinth seal, have restricted impurity entering air gap to avoid impurity absorption on rotor 9 surface. The driving end cover 17 and the non-driving end cover 2 are provided with an air inlet channel and an air exhaust channel at the same time. The pressing rings at two ends of the rotor 9 and the end plates are provided with blades, under the driving of the blades, cooling media at two ends respectively enter from the air inlet channels at two ends and flow out from the air outlet channels at two ends, so that the end windings at two ends, the rotor 9 and the bearing are cooled. The air-cooled motor can be suitable for motors of various models such as asynchronous motors, permanent magnet motors and the like; the stator wind deflector 19 and the stator tooth pressure plate 21 can be fixed in various manners such as welding, bolt connection or riveting, and the sealing protrusion of the rotor end plate 8 can be integrally formed with the rotor end plate 8, and can also be connected in other manners such as welding.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The air cooling motor provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides an air-cooled motor, includes frame, stator, rotor and locates separately the end cover subassembly at frame both ends, a serial communication port, the frame is equipped with air intake and air outlet, the frame is seted up the intercommunication along the axial the air intake with the air outlet just is used for the cooling the stator ventiduct of stator, the end cover subassembly all runs through and sets up inlet air channel and exhaust air channel, still includes the drive air current edge inlet air channel extremely the drainage subassembly that exhaust air channel flows.
2. The air-cooled motor of claim 1, wherein the end cap assembly comprises a driving end cap and a non-driving end cap, the air intake channel comprises a first air intake channel disposed on the driving end cap and a second air intake channel disposed on the non-driving end cap, the air exhaust channel comprises a first air exhaust channel disposed on the driving end cap and a second air exhaust channel disposed on the non-driving end cap, the first air intake channel and the second air intake channel are coaxially disposed, and the first air exhaust channel and the second air exhaust channel are coaxially disposed.
3. The air-cooled motor of claim 2, wherein the air-guiding assembly comprises a driving end blade and a non-driving end blade respectively disposed at two ends of the rotor, the driving end blade and the non-driving end blade both extend along the axial direction of the rotor, the driving end blade is disposed between the first air inlet channel and the first air exhaust channel, and the non-driving end blade is disposed between the second air inlet channel and the second air exhaust channel.
4. The air-cooled motor of claim 3, wherein rotor end plates are disposed at both ends of the rotor, and the driving end blades and the non-driving end blades are fixedly connected to the rotor end plates.
5. The air-cooled motor of claim 1, wherein the flow guide assembly comprises an air supply device arranged in the air inlet channel, and/or the flow guide assembly comprises an air guide device arranged in the air exhaust channel.
6. The air-cooled motor as claimed in any one of claims 1 to 5, wherein the air intake duct and the air exhaust duct are provided with dust filter assemblies.
7. The air-cooled motor according to claim 4, wherein annular stator wind shielding plates are provided on inner peripheries of both ends of the stator, respectively, and the stator wind shielding plates shield an air gap between the stator and the rotor.
8. The air-cooled electric machine of claim 7 wherein a labyrinth seal is provided between the stator wind deflector and the rotor end plate.
9. The air-cooled motor according to claim 8, wherein the stator wind guard extends towards the rotor end plate along an inner radial direction of the air-cooled motor, a sealing protrusion protruding in an axial direction is arranged on the periphery of the rotor end plate, and an avoiding groove retracting in the inner radial direction of the air-cooled motor is formed in the tail end of the sealing protrusion.
10. The air-cooled motor of claim 6, wherein the cross-sectional shapes of the air inlet channel and the air outlet channel are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106340.9A CN113794313A (en) | 2021-09-22 | 2021-09-22 | Air-cooled motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106340.9A CN113794313A (en) | 2021-09-22 | 2021-09-22 | Air-cooled motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113794313A true CN113794313A (en) | 2021-12-14 |
Family
ID=78879023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111106340.9A Pending CN113794313A (en) | 2021-09-22 | 2021-09-22 | Air-cooled motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113794313A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389398A (en) * | 2022-01-19 | 2022-04-22 | 湖南中车尚驱电气有限公司 | Diffusion end cover and motor |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379975A (en) * | 1980-06-26 | 1983-04-12 | Tokyo Shibaura Denki Kabushiki Kaisha | Reverse flow cooled dynamoelectric machine |
| JP2002359949A (en) * | 2001-05-31 | 2002-12-13 | Toshiba Transport Eng Inc | Drive motor for rolling stock |
| CN2750559Y (en) * | 2003-11-17 | 2006-01-04 | 美国艾默生电气公司 | Low-noise ventilating system for motor |
| CN102136780A (en) * | 2010-01-26 | 2011-07-27 | 株式会社日立制作所 | Totally enclosed motor |
| CN104753283A (en) * | 2013-12-27 | 2015-07-01 | 高志宏 | Cylindrical magnetic motive machine |
| CN104810942A (en) * | 2015-04-15 | 2015-07-29 | 新疆金风科技股份有限公司 | Permanent magnet direct-drive wind-powered generator, system and stator thereof |
| 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 |
| CN106992632A (en) * | 2017-06-06 | 2017-07-28 | 大连碧蓝节能环保科技有限公司 | Casing internal circulation air-cooled external rotor brushless DC motor |
| US20180183297A1 (en) * | 2015-09-15 | 2018-06-28 | Mitsubishi Electric Corporation | Vehicular ac power generator |
| CN109391072A (en) * | 2017-08-14 | 2019-02-26 | 中车株洲电力机车研究所有限公司 | A kind of railway trunk line locomotive vehicle and its permanent magnet synchronous traction motor |
| CN112134396A (en) * | 2020-09-30 | 2020-12-25 | 中车株洲电机有限公司 | Motor and shell thereof |
-
2021
- 2021-09-22 CN CN202111106340.9A patent/CN113794313A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379975A (en) * | 1980-06-26 | 1983-04-12 | Tokyo Shibaura Denki Kabushiki Kaisha | Reverse flow cooled dynamoelectric machine |
| JP2002359949A (en) * | 2001-05-31 | 2002-12-13 | Toshiba Transport Eng Inc | Drive motor for rolling stock |
| CN2750559Y (en) * | 2003-11-17 | 2006-01-04 | 美国艾默生电气公司 | Low-noise ventilating system for motor |
| CN102136780A (en) * | 2010-01-26 | 2011-07-27 | 株式会社日立制作所 | Totally enclosed motor |
| CN104753283A (en) * | 2013-12-27 | 2015-07-01 | 高志宏 | Cylindrical magnetic motive machine |
| CN104810942A (en) * | 2015-04-15 | 2015-07-29 | 新疆金风科技股份有限公司 | Permanent magnet direct-drive wind-powered generator, system and stator thereof |
| US20180183297A1 (en) * | 2015-09-15 | 2018-06-28 | Mitsubishi Electric Corporation | Vehicular ac power generator |
| 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 |
| CN106992632A (en) * | 2017-06-06 | 2017-07-28 | 大连碧蓝节能环保科技有限公司 | Casing internal circulation air-cooled external rotor brushless DC motor |
| CN109391072A (en) * | 2017-08-14 | 2019-02-26 | 中车株洲电力机车研究所有限公司 | A kind of railway trunk line locomotive vehicle and its permanent magnet synchronous traction motor |
| CN112134396A (en) * | 2020-09-30 | 2020-12-25 | 中车株洲电机有限公司 | Motor and shell thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389398A (en) * | 2022-01-19 | 2022-04-22 | 湖南中车尚驱电气有限公司 | Diffusion end cover and motor |
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Application publication date: 20211214 |