CN114679011B - Light-weight totally-enclosed motor rotor heat radiation structure - Google Patents
Light-weight totally-enclosed motor rotor heat radiation structure Download PDFInfo
- Publication number
- CN114679011B CN114679011B CN202210263226.5A CN202210263226A CN114679011B CN 114679011 B CN114679011 B CN 114679011B CN 202210263226 A CN202210263226 A CN 202210263226A CN 114679011 B CN114679011 B CN 114679011B
- Authority
- CN
- China
- Prior art keywords
- driving end
- fan
- drive end
- rotor
- heat dissipation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005855 radiation Effects 0.000 title claims description 7
- 230000017525 heat dissipation Effects 0.000 claims abstract description 45
- 238000009423 ventilation Methods 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 239000011889 copper foil Substances 0.000 claims description 2
- 239000004519 grease Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 3
- 241000883990 Flabellum Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a totally-enclosed motor rotor heat dissipation structure, in particular to a lightweight totally-enclosed motor rotor heat dissipation structure. The invention aims to provide a lightweight totally-enclosed motor rotor heat dissipation structure which can meet the requirements of lightweight design of a totally-enclosed motor and the heat dissipation effect of the rotor, and comprises a machine base, a driving end cover, a non-driving end cover, a driving end fan and a non-driving end fan, wherein the rotor structure comprises a heat conduction sleeve, a driving end air outlet and a driving end air inlet are formed in the end face of the driving end cover, and a first air path structure is formed by the driving end air inlet, driving end blades and the driving end air outlet; the end face of the non-driving end cover is provided with a non-driving end air inlet, the machine base is provided with a radial vent communicated with the axial vent hole, and the non-driving end air inlet, the non-driving end fan blades, the radial vent hole, the axial vent hole and the axial air outlet form a second air path structure, so that heat dissipation of a stator and a rotor of the lightweight totally-enclosed motor is completed.
Description
Technical Field
The invention relates to the technical field of totally-enclosed motors, in particular to a totally-enclosed motor rotor heat dissipation structure, and specifically relates to a lightweight totally-enclosed motor rotor heat dissipation structure.
Background
At present, the existing high-speed rail traction motor field generally adopts full-closed and forced ventilation and utilizes heat dissipation ribs on a machine base to dissipate heat, and a bearing part is assisted with a local self-contained fan to dissipate heat, but the scheme often causes higher temperature rise of a motor rotor due to poorer heat dissipation conditions of the motor rotor, so that samarium cobalt with higher high-temperature resistance level has to be adopted for permanent magnet rotor design, and the motor cost is increased sharply.
Meanwhile, according to the requirement of lightweight design in the field of high-speed rail traction motors, the lightweight design of the high-speed rail traction motors is met by designing a rotating shaft of a totally-enclosed motor into a hollow shaft in the prior art, and the hollow shaft is easy to cause large internal heat transfer resistance, so that the heat dissipation effect of a rotor is poor, and the temperature rise of the rotor is high. In order to solve the problem of higher temperature rise of a motor rotor, the prior art is like a permanent magnet traction motor for subways with the publication number of CN106253556A, and the invention mainly completes the heat dissipation of the motor through an external air path in an interlayer of a motor base; in the second prior art, the patent name is CN106655596A, and the patent name is an internal and external double-circulation totally-enclosed motor self-ventilation cooling structure. Therefore, a totally-enclosed motor rotor heat dissipation structure which can meet the requirements of the high-speed rail traction motor field on the light-weight design of the totally-enclosed motor and the heat dissipation effect of the rotor is urgently needed at the present stage.
Disclosure of Invention
The invention aims to provide a lightweight totally-enclosed motor rotor heat dissipation structure which can meet the requirements of the field of high-speed rail traction motors on the lightweight design of totally-enclosed motors and the heat dissipation effect of rotors.
The invention is realized by adopting the following technical scheme:
the light totally-enclosed motor rotor heat radiation structure comprises a machine base with an axial vent hole arranged on the end face, a drive end cover, a non-drive end cover, a stator structure, a rotor structure, a drive end fan comprising a drive end fan disc and a drive end fan blade, and a non-drive end fan, wherein the drive end cover is sealed and fixed on the drive end face of the machine base, an axial air outlet arranged on the end face of the drive end cover and communicated with the axial vent hole is arranged on the end face of the drive end cover, the non-drive end cover is sealed and fixed on the non-drive end face of the machine base, the stator structure comprises a stator core and a stator pressing ring arranged at the non-drive end of the stator core, the rotor structure comprises a hollow rotating shaft, a rotor core, a heat conducting sleeve, a flange sleeved and fixed at the drive end of the hollow rotating shaft, and a rotor pressing ring arranged at the non-drive end of the rotor core, the heat conduction sleeve is sleeved and fixed in the middle of the outer circumferential surface of the rotating shaft, the rotor iron core is sleeved and fixed on the outer circumferential surface of the heat conduction sleeve, a driving end cavity is formed between the rotor pressing ring and the driving end cover, the driving end fan is positioned in the driving end cavity, the driving end fan disc is sleeved and fixed on the driving end of the rotating shaft, the outer ring of the driving end face of the driving end fan disc and the corresponding part of the driving end cover (the corresponding part is a conventional technical means of a person skilled in the art) are provided with labyrinth seals, the non-driving end face of the driving end fan disc is tightly and fixedly connected with the driving end face of the flange, a driving end air outlet and a driving end air inlet are formed in the end face of the driving end cover, and the driving end air inlet, the driving end fan blade and the driving end air outlet form a first air path structure; the non-drive end fan comprises a heat dissipation disc, a connecting cylinder body, a non-drive end fan disc and non-drive end fan blades, wherein the heat dissipation disc is fixedly arranged at the end part of the non-drive end of the rotating shaft, the end face of the drive end of the heat dissipation disc is tightly attached to the heat conduction sleeve and fixedly connected with the heat conduction sleeve, a non-drive end cavity is formed between the stator pressing ring and the non-drive end cover through the connecting cylinder body, the non-drive end fan disc is positioned in the non-drive end cavity, the non-drive end fan disc and the stator pressing ring are provided with labyrinth seals, a non-drive end air inlet is formed in the end face of the non-drive end cover, and a radial ventilation opening communicated with the axial ventilation opening is formed in the inner ring of the non-drive end of the machine seat, and the non-drive end air inlet, the non-drive end fan blades, the radial ventilation opening and the axial ventilation opening form a second air path structure.
Principle of heat radiation structure: the rotor core conducts heat to the heat conducting sleeve, and as the rotating shaft is hollow and has high heat transfer resistance, most of the heat conducting sleeve can be conducted to the flange and the rotor pressing ring; the heat conducted to the flange is conducted to the driving end fan disc, and the driving end fan blades can serve as radiating ribs while playing a role of driving cooling air, so that the radiating area of the driving end of the rotor is increased; the heat conducted to the rotor pressing ring is conducted to the heat dissipation disc and the connecting cylinder, when the non-driving end fan operates, cooling air enters from the non-driving end air inlet, after convection heat exchange is carried out on the cooling air, the cooling air is driven into the non-driving end cavity through the non-driving end fan blades after the cooling disc and the connecting cylinder, after the heat on the stator iron core is conducted to the stator pressing ring, the cooling air and the stator pressing ring are subjected to cold and heat exchange, and then flow out through the radial ventilation opening and the axial ventilation hole (the heat of the stator iron core is conducted to the inner ring of the machine base) and then flow out from the axial air outlet, so that the heat dissipation of the non-driving end of the rotor and the stator is completed.
The beneficial effects of the invention are as follows: according to the invention, through designing the structures of the heat conducting sleeve and the fans at the two ends of the rotor, the heat of the rotor is conducted to the fans at the two ends of the rotor, and the fans directly exchange heat with external cooling air in a forced convection way so as to take away the heat of the rotor of the motor.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a lightweight totally enclosed motor rotor heat dissipation structure;
FIG. 2 is a schematic diagram of an assembled structure of a rotor structure, a drive-end fan, and a non-drive-end fan;
FIG. 3 is a schematic diagram II of an assembled structure of a rotor structure, a drive-end fan, and a non-drive-end fan;
FIG. 4 is a schematic diagram of an assembly structure of a hollow rotating shaft, a heat conducting sleeve and a flange;
FIG. 5 is a semi-sectional view of FIG. 4;
FIG. 6 is a schematic diagram of an assembly structure of a hollow shaft and a flange;
FIG. 7 is a schematic view of a drive-end fan;
FIG. 8 is a schematic view of a non-driven end fan;
FIG. 9 is a schematic diagram of a non-driven fan.
In the figure: the device comprises a machine seat, a 2-axial vent hole, a 3-driving end cover, a 4-non-driving end cover, a 5-driving end fan disc, a 6-driving end fan blade, a 7-cooling disc, an 8-connecting cylinder body, a 9-non-driving end fan disc, a 10-non-driving end fan blade, an 11-outer cooling rib, a 12-inner cooling rib, a 13-front fan disc, a 14-axial air outlet, a 15-stator core, a 16-stator pressing ring, a 17-rotor core, a 18-heat conducting sleeve, a 19-flange, a 20-rotor pressing ring, a 21-driving end air outlet, a 22-driving end air inlet, a 23-non-driving end air inlet, a 24-radial vent, a 25-hollow shaft, a 26-integrated solid shaft, a 27-split solid shaft, a 28-wedge-shaped groove, a 29-wedge-shaped convex block and a 30-key groove.
Detailed Description
As shown in fig. 1 to 9, a lightweight totally-enclosed motor rotor heat dissipation structure comprises a machine base 1, a driving end cover 3, a non-driving end cover 4, a stator structure, a rotor structure, a driving end fan and a non-driving end fan, wherein the end face of the machine base 1 is penetrated with an axial vent hole 2, the driving end fan comprises a driving end fan disc 5 and driving end blades 6, the driving end cover 3 is fixed on the end face of the driving end cover 3 in a sealing manner, an axial air outlet 14 penetrated with the axial vent hole 2 is formed in the end face of the driving end cover 3, the non-driving end cover 4 is fixed on the non-driving end face of the machine base 1 in a sealing manner, the stator structure comprises a stator iron core 15, a stator pressing ring 16 positioned at the non-driving end of the stator iron core 15, the rotor structure comprises a hollow rotating shaft, a rotor iron core 17, a heat conducting sleeve 18, a flange 19 sleeved and fixed at the driving end of the rotating shaft, a rotor pressing ring 20 positioned at the non-driving end of the rotor iron core 17, the middle part of the outer circumferential surface of the rotating shaft, the rotor iron core 17 is sleeved and fixed on the driving end, a driving end cavity is arranged between the rotor pressing ring and the driving end cover, the driving end fan is positioned in the driving end cavity, the driving end fan is sleeved and fixed on the driving end, the driving end of the driving end fan, the driving end 3 is provided with a driving end 3, the driving end face of the driving end is tightly connected with the driving end cover 3, and the driving end face of the driving end cover 3, and the driving end is tightly connected with the driving end cover 21, and the driving end is tightly provided with the driving end hole end cover 21, and the air inlet end structure, and the driving end is tightly connected with the driving end hole 21; the non-drive end fan comprises a heat dissipation disc 7, a connecting cylinder 8, a non-drive end fan disc 9 and non-drive end fan blades 10, wherein the heat dissipation disc 7 is fixedly sleeved at the non-drive end part of a rotating shaft, the drive end face of the heat dissipation disc 7 is tightly attached to and fixedly connected with a heat conduction sleeve 18, the heat dissipation disc 7 is fixedly connected with the non-drive end fan disc 9 through the connecting cylinder 8, a non-drive end cavity is arranged between a stator pressing ring 16 and a non-drive end cover 4, the non-drive end fan disc 95 is positioned in the non-drive end cavity, the non-drive end fan disc 9 and the stator pressing ring 16 are provided with labyrinth seals, a non-drive end air inlet 23 is formed in the end face of the non-drive end cover 4, a radial ventilation opening 24 communicated with an axial ventilation hole 2 is formed in an inner ring of a non-drive end of a machine base 1, and the non-drive end fan blades 10, the radial ventilation opening 24, the axial ventilation hole 2 and the axial air outlet 14 form a second air path structure.
As indicated by the arrow direction in fig. 1, the principle of the heat dissipation structure: the rotor core 17 conducts heat to the heat conducting sleeve 18, and the rotating shaft is hollow, so that heat of the heat conducting sleeve 18 is mostly conducted to the flange 19 and the rotor pressing ring 20 because the heat conducting resistance is high; the heat conducted to the flange 19 is conducted to the driving end fan disc 5, and the driving end fan blades 6 can not only play a role of driving cooling air, but also serve as radiating ribs, so that the radiating area of the driving end of the rotor is increased, and when the driving end fan operates, the cooling air enters from the driving end air inlet 22 and then flows out from the driving end air outlet 21 through the driving end fan blades 6, so that cooling air is driven to the driving end air outlet 21, and the heat radiation of the driving end of the motor rotor is completed; the heat conducted to the rotor pressing ring 20 is conducted to the heat dissipation disc 7 and the connecting cylinder body 8, when the non-driving end fan runs, cooling air enters from the non-driving end air inlet 23, after convection heat exchange is carried out with the heat dissipation disc 7 and the connecting cylinder body 8, cooling air is driven into the non-driving end cavity through the non-driving end fan blades 10, after heat on the stator core 15 is conducted to the stator pressing ring 16, after heat exchange is carried out between the cooling air and the stator pressing ring 16, the cooling air is conducted to the inner ring of the machine base 1 through the radial ventilation opening 24 and the axial ventilation opening 2, and finally flows out from the axial air outlet 14, so that heat dissipation of the non-driving end of the rotor and the stator is completed.
In specific implementation, an annular heat conducting copper foil or heat conducting silicone grease for eliminating heat insulation gaps is arranged between the end face of the driving end of the heat radiating disc 7 and the end face of the non-driving end of the rotor pressing ring 20, so that heat on the rotor core 17 can be better conducted to the heat radiating disc 7 through the rotor pressing ring 20. The rotating shaft comprises a hollow shaft 25 positioned in the middle of the rotating shaft, an integral solid shaft 26 integrally fixed on the driving end of the hollow shaft 25, and a split solid shaft 27 embedded (thermally sleeved) on the non-driving end of the hollow shaft 25. The structure of pivot is materialized, and such structure can satisfy lightweight design requirement, simultaneously also can be better satisfy motor rotor heat radiation structure. The outer circumferential surface of the hollow shaft 25 is provided with an axial wedge-shaped groove 28, and the heat conducting sleeve 18 is provided with a wedge-shaped convex block 29 matched with the wedge-shaped groove 28, so that the hollow shaft 25 is tightly combined with the heat conducting sleeve 18, and the heat radiating structure of the motor rotor is more stable. The outer radiating ribs 11 are arranged on the outer peripheral surface of the connecting cylinder body 8, so that the structure is reinforced, the heat absorption area of the stator is increased, and the air disturbance heat exchange effect of the cavity near the stator is enhanced. The inner radiating ribs 12 are arranged on the inner circumferential surface of the connecting cylinder body 8, so that the effect of structural reinforcement is achieved, the effect of increasing the inner radiating area is achieved, and meanwhile, the air disturbance heat exchange effect of the cavity near the non-driving end bearing is improved. The non-driving end fan also comprises a front fan disc 13, and the non-driving end fan blades 10 are positioned between the front fan disc 13 and the non-driving end fan disc 9, so that the cooling effect of the non-driving end fan is increased, and the heat dissipation effect of the rotor is further improved.
In specific implementation, the key groove 30 is arranged on the heat conducting sleeve 18, the heat conducting sleeve 18 is connected with the rotor core 17 through keys, and the structure is specific. The radial part of the heat conduction sleeve 18 provided with the key groove 30 is formed by integrally extending the hollow shaft 25 along the radial direction, and the radial parts of the heat conduction sleeve 18 except for the radial part provided with the key groove 30 are all formed by casting high heat conduction aluminum onto the hollow shaft 25. The high heat conduction aluminum has better heat conduction effect and low cost, but the formed structure has poorer hardness, so the radial part of the heat conduction sleeve 18 provided with the key groove 30 is formed by integrally extending the hollow shaft 25 along the radial direction.
In this embodiment, the connecting cylinder 8 is a circular truncated cone-shaped cylinder, the small diameter end of the connecting cylinder 8 is fixedly connected with the heat dissipation disc 7, the large diameter end of the connecting cylinder 8 is fixedly connected with the non-driving end fan disc 9, and the heat dissipation area of the connecting cylinder 8 is further increased. The driving end air inlet 22, the driving end air outlet 21, the axial vent hole 2 and the axial air outlet 14 are all multiple and are all equidistantly arranged along the circumferential direction.
Claims (10)
1. The utility model provides a lightweight totally closed motor rotor heat radiation structure, which is characterized in that, including frame (1) that its terminal surface link up and offered axial ventilation hole (2), drive end cover (3), non-drive end cover (4), stator structure, rotor structure, drive end fan including drive end fan dish (5) and drive end flabellum (6), non-drive end fan, drive end cover (3) seal is fixed in the drive end terminal surface of frame (1) and open on the terminal surface of drive end cover (3) have with axial air outlet (14) that link up with axial ventilation hole (2), non-drive end cover (4) seal is fixed in the non-drive end terminal surface of frame (1), the stator structure comprises a stator core (15), a stator pressing ring (16) positioned at the non-transmission end of the stator core (15), the rotor structure comprises a hollow rotating shaft, a rotor core (17), a heat conducting sleeve (18), a flange (19) sleeved and fixed at the transmission end of the hollow rotating shaft, a rotor pressing ring (20) positioned at the non-transmission end of the rotor core (17), the heat conducting sleeve (18) is fixed at the middle part of the outer circumferential surface of the rotating shaft, the rotor core (17) is sleeved and fixed at the outer circumferential surface of the heat conducting sleeve (18), a driving end cavity is arranged between the rotor pressing ring (20) and a driving end cover (3), a driving end fan is positioned in the driving end cavity, a driving end fan disc (5) is sleeved and fixed at the driving end of the rotating shaft, the outer ring of the end face of the driving end fan disc (5) is provided with labyrinth seal with the corresponding part of the end cover (3) of the driving end, the non-driving end face of the driving end fan disc (5) is tightly attached to and fixedly connected with the end face of the flange (19), the end face of the end cover (3) of the driving end is provided with a driving end air outlet (21) and a driving end air inlet (22), and the driving end air inlet (22), the driving end fan blade (6) and the driving end air outlet (21) form a first air path structure; the non-drive end fan comprises a radiating disc (7), a connecting cylinder body (8), a non-drive end fan disc (9) and non-drive end fan blades (10), wherein the radiating disc (7) is fixedly sleeved at the non-drive end part of a rotating shaft, the drive end face of the radiating disc (7) is tightly attached to and fixedly connected with a heat conducting sleeve, the radiating disc (7) is fixedly connected with the non-drive end fan disc (9) through the connecting cylinder body (8), a non-drive end cavity is arranged between a stator pressing ring (16) and the non-drive end cover (4), the non-drive end fan disc (9) is positioned in the non-drive end cavity, the non-drive end fan disc (9) and the stator pressing ring (16) are provided with labyrinth seals, a non-drive end air inlet (23) is formed in the end face of the non-drive end cover (4), a radial vent (24) communicated with an axial vent (2) is formed in the inner ring of a non-drive end of a machine base (1), and the non-drive end air inlet (23), the non-drive end fan blades (10), the radial vent (24), the axial vent (2) and the axial air outlet (14) form a second air path structure.
2. The lightweight totally-enclosed motor rotor heat dissipation structure according to claim 1, characterized in that an annular heat conducting copper foil or heat conducting silicone grease for eliminating heat insulation gaps is arranged between the driving end face of the heat dissipation disc (7) and the non-driving end face of the rotor pressing ring (20).
3. The heat dissipation structure of a lightweight totally enclosed motor rotor according to claim 2, characterized in that the rotating shaft comprises a hollow shaft (25) located in the middle of the rotating shaft, an integral solid shaft (26) integrally fixed to the driving end of the hollow shaft (25), and a split solid shaft (27) thermally sleeved on the non-driving end of the hollow shaft (25).
4. A lightweight totally enclosed motor rotor heat dissipation structure as claimed in claim 3, characterized in that the outer circumferential surface of the hollow shaft (25) is provided with an axial wedge-shaped groove (28), and the heat conducting sleeve (18) is provided with a wedge-shaped lug (29) adapted to the wedge-shaped groove (28).
5. The light-weight totally-enclosed motor rotor heat dissipation structure according to claim 4, wherein the outer peripheral surface of the connecting cylinder (8) is provided with outer heat dissipation ribs (11).
6. The light-weight totally-enclosed motor rotor heat dissipation structure according to claim 5 is characterized in that the inner circumferential surface of the connecting cylinder (8) is provided with inner heat dissipation ribs (12).
7. The lightweight totally enclosed motor rotor heat dissipating structure of claim 6, wherein the non-drive fan further comprises a front fan disk (13), and the non-drive fan blades (10) are located between the front fan disks (13) (13) and the non-drive fan disk (9).
8. A lightweight totally enclosed motor rotor heat dissipation structure as claimed in any one of claims 1 to 7, characterized in that the heat conducting sleeve (18) is provided with a key slot (30), and the heat conducting sleeve (18) is connected to the rotor core (17) by means of a key.
9. The light-weight totally-enclosed motor rotor heat dissipation structure according to claim 8, wherein the radial part of the heat conduction sleeve (18) provided with the key groove (30) is formed by integrally extending the hollow shaft (25) along the radial direction, and the radial parts of the heat conduction sleeve (18) except for the radial part provided with the key groove (30) are formed by casting high heat conductivity onto the hollow shaft (25).
10. The light-weight totally-enclosed motor rotor heat dissipation structure according to claim 9, wherein the connecting cylinder (8) is a round table-shaped cylinder, the small diameter end of the connecting cylinder (8) is fixedly connected with the heat dissipation disc (7), and the large diameter end of the connecting cylinder (8) is fixedly connected with the non-driving end fan disc (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210263226.5A CN114679011B (en) | 2022-03-17 | 2022-03-17 | Light-weight totally-enclosed motor rotor heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210263226.5A CN114679011B (en) | 2022-03-17 | 2022-03-17 | Light-weight totally-enclosed motor rotor heat radiation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114679011A CN114679011A (en) | 2022-06-28 |
| CN114679011B true CN114679011B (en) | 2023-12-19 |
Family
ID=82073586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210263226.5A Active CN114679011B (en) | 2022-03-17 | 2022-03-17 | Light-weight totally-enclosed motor rotor heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114679011B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013252032A (en) * | 2012-06-04 | 2013-12-12 | Hitachi Industrial Equipment Systems Co Ltd | Rotary electric machine |
| CN106160340A (en) * | 2016-08-13 | 2016-11-23 | 中车永济电机有限公司 | A kind of totally-enclosed forced ventilation cooling structure of magneto |
| CN112713695A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Cooling fan motor for locomotive |
| WO2021196516A1 (en) * | 2020-03-28 | 2021-10-07 | 中山大洋电机股份有限公司 | External rotor motor |
-
2022
- 2022-03-17 CN CN202210263226.5A patent/CN114679011B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013252032A (en) * | 2012-06-04 | 2013-12-12 | Hitachi Industrial Equipment Systems Co Ltd | Rotary electric machine |
| CN106160340A (en) * | 2016-08-13 | 2016-11-23 | 中车永济电机有限公司 | A kind of totally-enclosed forced ventilation cooling structure of magneto |
| WO2021196516A1 (en) * | 2020-03-28 | 2021-10-07 | 中山大洋电机股份有限公司 | External rotor motor |
| CN112713695A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Cooling fan motor for locomotive |
Non-Patent Citations (1)
| Title |
|---|
| 900千瓦全封闭式筋外冷电动机;周跃;上海大中型电机;-;第-卷(第01期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114679011A (en) | 2022-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201369663Y (en) | Disk-type brushless motor | |
| CN110460198A (en) | High-speed permanent magnet motor | |
| CN106059195A (en) | Rotor connection structure with fan blades capable of increasing heat emission efficiency of inner chamber of motor | |
| CN110545012A (en) | Totally-enclosed natural cooling traction motor | |
| AU2011213437A1 (en) | A radiation structure used for vertical axis disc-type external-rotor electric machine | |
| CN110768414A (en) | Cooling structure of permanent magnet motor | |
| CN114679011B (en) | Light-weight totally-enclosed motor rotor heat radiation structure | |
| CN107528423B (en) | Closed permanent magnet generator for small wind power generation | |
| CN220510917U (en) | Rotor with cooling fan and gear hub motor | |
| CN113193688A (en) | IP55 industrial ceiling fan motor with external cooling structure | |
| CN116470669A (en) | Opposite-rotating axial flux motor with rotor integrated with axial flow fan and ducted fan | |
| CN208923982U (en) | A kind of wind-cooling heat dissipating micromotor | |
| CN207677529U (en) | A kind of inner rotor body of permanent magnet motor with cast copper radiator structure | |
| CN105827067A (en) | Inner cavity ventilation and heat dissipation system device of magnetic matrix coreless motor | |
| CN113965019B (en) | Rotor heat radiation structure of sealed motor | |
| CN212137477U (en) | High-speed permanent magnet synchronous motor | |
| CN112366894A (en) | Rare earth permanent magnet motor | |
| CN220492816U (en) | Efficient heat dissipation rotor | |
| CN112713716A (en) | Closed motor with internal and external cooling wind path and motor base | |
| CN218829410U (en) | Motor heat dissipation assembly and motor | |
| CN112491198B (en) | Self-fan-cooling axial flux motor of hybrid integrated centrifugal fan and axial flow fan | |
| CN214707387U (en) | IP55 industrial ceiling fan motor with external cooling structure | |
| CN211530902U (en) | Heat radiation structure of permanent magnet coreless motor | |
| CN219227374U (en) | Heat dissipation mechanism of industrial fan motor | |
| CN219592232U (en) | High-efficient motor stator-rotor subassembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |