CN116404809B - Fan structure for slow-rotation-speed permanent magnet synchronous motor - Google Patents
Fan structure for slow-rotation-speed permanent magnet synchronous motor Download PDFInfo
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- CN116404809B CN116404809B CN202310607015.3A CN202310607015A CN116404809B CN 116404809 B CN116404809 B CN 116404809B CN 202310607015 A CN202310607015 A CN 202310607015A CN 116404809 B CN116404809 B CN 116404809B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 96
- 238000009423 ventilation Methods 0.000 claims abstract description 12
- 230000017525 heat dissipation Effects 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 6
- 125000003003 spiro group Chemical group 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 7
- 238000005192 partition Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
-
- 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
- H02K9/16—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing
Abstract
The invention discloses a fan structure for a slow-rotation-speed permanent magnet synchronous motor, which is screwed at the tail end of the permanent magnet motor; the fan structure comprises a connecting cylinder, double fan blades, a hot air ventilating duct, a cold air fan cover and a power motor; the double fan blades comprise internal hot air circulation fan blades and external cooling fan blades, hot air from the inside of the motor passes through the internal hot air circulation fan blades, centrifugal wind pressure and wind quantity enter a hot air pipeline, the inside of the permanent magnet motor, and the rotor inner air channel and the open holes of the tail end cover of the permanent magnet motor circulate for a circle; cooling air from the outside of the motor blows to the cooling ribs and the hot air ventilation pipeline at the periphery of the permanent magnet motor to cool the heat of the motor; under the condition that circulating wind is hardly generated in the slow-rotation permanent magnet motor, benign circulation of wind volume and wind from external strong wind pressure exists; the fan structure of this design can set up in the tail end of circular casing motor, also can set up in the tail end of square casing motor, is also applicable to the vertical mill simultaneously.
Description
Technical Field
The invention relates to the technical field of heat dissipation of synchronous motors, in particular to a fan structure for a slow-rotation-speed permanent magnet synchronous motor.
Background
Along with the popularization of permanent magnets, the permanent magnet synchronous motor is more and more developed, and compared with the traditional motor, the permanent magnet synchronous motor has smaller occupied area and better effect on the premise of the same parameters such as power and the like. Because the floor space of the motor is smaller, the requirement for cooling the motor is also increased. For a motor with a slow rotating speed, the rotating speed is low, the air quantity is small, so that hot air in the motor can not timely exchange cold and heat with the outside, the heat temperature in the motor is likely to be increased, the motor performance is damaged, even the permanent magnet is demagnetized, and the loss is serious.
The traditional permanent magnet synchronous motor dissipates heat by externally adding a fan blade on a rotating shaft of the motor so as to help the motor circulate wind; the Chinese patent application number 201810129947.0 is used for researching the heat dissipation problem of the permanent magnet synchronous motor, designs the permanent magnet synchronous motor, adds a fan blade at the tail end of a motor rotating shaft, designs a fan housing and a ventilation path, helps the internal hot air to circulate, and is beneficial to heat dissipation of the motor. However, for a motor with a slow rotating speed, the fan blades are added on the rotating shaft with a very small meaning and a very small effect because of the slow rotating speed; also, for example, chinese patent application nos. 202110882378.9, 201610050296.7, 202020962561.0 all employ this structure.
Chinese patent application No. 201921400778.6 discloses a double-wind-path structure capable of effectively reducing the temperature rise of a high-power wide-rotation-speed variable-frequency motor, wherein two centrifugal fans are adopted to respectively drive the heat inside the motor to circulate and enter a cooler for heat exchange between hot air and cooling water, and the structure mainly uses external cold water to enter the cooler for cooling effect; the external cooling water needs equipment such as a pool, a water pump, a pipeline, a copper pipe and the like with high cost; moreover, the water in the cooler has the harm of leakage, condensation and the like, and the manufacturing cost is high, so that the cooling device is not suitable for heat dissipation of a small motor.
The invention designs a fan structure for the slow-rotation permanent magnet synchronous motor in order to meet market demands and solve the problems at the same time, and researches on a heat dissipation structure of the slow-rotation permanent magnet synchronous motor are carried out.
Disclosure of Invention
The invention aims to overcome the existing defects, and provides a fan structure for a slow-rotation-speed permanent magnet synchronous motor, wherein a fan structure is externally arranged at the tail end of the motor, and the fan belongs to a separate device and is not arranged on a motor rotating shaft, so that the cooling problem of the slow-rotation-speed motor is solved; the fan mechanism has ingenious design, reduces the manufacturing cost, adopts an independent power mechanism with coaxial double blades, ensures the heat dissipation effect, can be arranged at the tail end of a circular shell motor, can also be arranged at the tail end of a square shell motor, and is applicable to a vertical mill; the purposes of convenience, time saving and cost saving are achieved, and the problems in the background technology can be effectively solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a fan structure for slow speed PMSM, including the connecting cylinder, two fan blades and motor, the left side of connecting cylinder is connected with the inlet disc subassembly, motor's output shaft passes inlet disc subassembly to the inside of connecting cylinder, two fan blades are installed on motor's output shaft, two fan blades include interior hot air circulation fan blade and outer cooling fan blade, this interior hot air circulation fan blade and outer cooling fan blade back-to-back spiro union, the inlet disc subassembly includes the cooling air inlet disc, the wind hole has been seted up on the cooling air inlet disc, and be equipped with cold wind wing in its inside to the connecting cylinder direction, the afterbody end cover of slow speed PMSM is equipped with hot-blast wind wing to the inside of connecting cylinder direction, the connecting cylinder passes through the bolt fastening between cooling air inlet disc and afterbody end cover, and the inside intercommunication of connecting cylinder through afterbody end cover and slow speed PMSM, the inside of connecting cylinder is equipped with annular baffle, annular baffle sets up in the ring channel that forms between interior hot air circulation fan blade and the outer cooling fan blade, and remain the distance between annular baffle and the ring channel.
Further, the outside of cooling air inlet dish is provided with trapezoidal increase board along the circumferencial direction, and the outside of trapezoidal increase board is fixed with the solid fixed ring, and power motor's front end flange and solid fixed ring spiro union, the hole has been seted up on the surface of cooling air inlet dish.
Further, a cold air fan cover is arranged on the outer side of the connecting cylinder, a cooling air outlet communicated with the cooling chamber is formed in the inner side cavity of the cold air fan cover, the cold air fan cover is fixed on the shell of the slow-speed permanent magnet synchronous motor through screws, the slow-speed permanent magnet synchronous motor is a circular shell, the cold air fan cover extends towards the slow-speed permanent magnet synchronous motor, a space is reserved between the cold air fan cover and the periphery of the shell of the slow-speed permanent magnet synchronous motor, and the cold air fan cover corresponds to cooling ribs on the outer surface of the shell of the slow-speed permanent magnet synchronous motor.
Further, a hot air outlet is formed in the outer surface of the connecting cylinder, a hot air ventilating duct I is connected to the hot air outlet, a circulating air duct communicated with the inside is arranged on the shell of the slow-rotation-speed permanent magnet synchronous motor, and an outlet of the hot air ventilating duct I is communicated with the circulating air duct.
Further, the shell of the slow-rotation-speed permanent magnet synchronous motor is arranged to be a square motor shell, a hole is formed in the tail end cover of the square motor shell, a lower fan cover is arranged on the outer side of the connecting cylinder, an outer fan cover is fixedly connected to the lower fan cover, a radiating pipe fan cover is arranged at the top of the square motor shell, a radiating pipe is arranged in the radiating pipe fan cover, the outer fan cover is communicated with the radiating pipe, a hot air ventilating duct II is connected to the connecting cylinder and is communicated with the radiating pipe fan cover, and a circulating air hole communicated with the radiating pipe fan cover is formed in the square motor shell.
Further, the inside of cooling tube fan housing is provided with the baffle, and the baffle includes baffle I, baffle II, baffle III, and baffle I and baffle III set up in the bottom of cooling tube fan housing, and baffle II sets up at the top of cooling tube fan housing.
Compared with the prior art, the invention has the beneficial effects that:
1. a fan structure is externally arranged at the tail end of the motor, and the fan belongs to an independent device and is not arranged on a motor rotating shaft, so that the cooling problem of a slow-rotating-speed motor is solved; the fan mechanism is ingenious in design, and the fan structure can be arranged at the tail end of the circular shell motor, can also be arranged at the tail end of the square shell motor, and is applicable to a vertical mill; the cooling system can be designed into the structure at the initial stage of motor design, and the structure can be added after the motor is designed, so that the motor cooling system really meets market demands.
2. The annular partition board and the annular groove keep a distance, and when the double fan blades rotate, a relative vacuum space is formed between the annular partition board and the annular groove, so that the mixing of internal circulating air and external cooling air is effectively prevented.
3. The motor is prevented from being reduced in performance due to overhigh internal temperature, the permanent magnet demagnetizing condition caused by overhigh internal heat cannot be caused by the arrangement of the fan, the cooler is canceled, the water cooling box is low in manufacturing cost, the motor is also suitable for heat dissipation of a small motor, and the heat dissipation effect is ensured by adopting an independent power mechanism with coaxial double fan blades.
Drawings
FIG. 1 is a schematic diagram of a blower of the present invention;
FIG. 2 is a schematic diagram of a permanent magnet synchronous motor with slow rotation speed removed according to the invention;
FIG. 3 is a schematic cross-sectional view of a blower according to the present invention;
FIG. 4 is a schematic view of a connecting cylinder according to the present invention;
FIG. 5 is a schematic view of a square motor housing according to the present invention;
FIG. 6 is a schematic diagram of a cross-sectional structure of a square motor housing according to the present invention;
FIG. 7 is a schematic view of the structure of the air intake plate assembly of the present invention.
In the figure: the cooling device comprises a slow rotation speed permanent magnet synchronous motor (1), a connecting cylinder (2), a hot air ventilating duct (3), a 4 air inlet disc component, a 5 cooling chamber, a 6 front end flange, a 7 tail end cover, a 8 power motor, a 9 cold air fan housing, a 10 radiating rib, an 11 internal hot air circulation fan blade, a 12 external cooling fan blade, a 13 cold air guide wing, a 14 hot air guide wing, a 15 annular partition plate, a 16 radiating pipe fan housing, a 17 radiating pipe, a 18 external fan housing, a 19 lower fan housing, a 20 square motor housing, a 21 cooling air outlet, a 22 hot air outlet, a 23 partition plate (I), a 24 partition plate (II), a 25 circulation fan hole, a 26 partition plate (III), a 27 fixing ring, a 28 trapezoid heightening plate, a 29 circulation air duct, a 30 cooling air inlet disc and a 31 hot air ventilating duct (II).
Detailed Description
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Examples
Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a fan structure for slow-speed permanent magnet synchronous motor, including connecting cylinder 2, two fan blades and power motor 8, the left side of connecting cylinder 2 is connected with inlet disk subassembly 4, the output shaft of power motor 8 passes inlet disk subassembly 4 to the inside of connecting cylinder 2, two fan blades are installed on the output shaft of power motor 8, two fan blades include interior hot-air circulation fan blade 11 and outer cooling fan blade 12, this interior hot-air circulation fan blade 11 and outer cooling fan blade 12 back-to-back spiro union, prevent interior circulating wind and external cooling wind mixing, interior hot-air circulation fan blade 11 and outer cooling fan blade 12 are centrifugal fan blade, inlet disk subassembly 4 includes cooling wind inlet disk 30, set up the wind hole on the cooling wind inlet disk 30, and be equipped with cold wind guiding wing 13 in its inside to connecting cylinder 2 direction, the afterbody end cover 7 of slow-speed permanent magnet synchronous motor 1 is equipped with hot wind guiding wing 14 to the inside of connecting cylinder 2 direction, connecting cylinder 2 passes through the bolt fastening between cooling wind inlet disk 30 and afterbody end cover 7, and the inside intercommunication of slow-speed permanent magnet synchronous motor 1, the inside of connecting cylinder 2 is equipped with annular baffle 15 and annular baffle 15 between annular baffle 15 and annular baffle 15 when the annular baffle is formed to the inside of annular baffle 15 when the annular baffle is connected to the annular baffle 15 from inside of annular between the annular baffle 15 and the annular baffle 15, the annular baffle is assembled to the inside of annular baffle 15 when having formed the annular baffle 15 to the annular between the annular baffle 15 and the inside of inner annular baffle 15 of inner side of the annular baffle and the annular baffle 15.
The outside of cooling air inlet dish 30 is provided with trapezoidal increase board 28 along the circumferencial direction, and the outside of trapezoidal increase board 28 is fixed with solid fixed ring 27, and power motor 8's front end flange 6 and solid fixed ring 27 spiro union, the hole has been seted up on the surface of cooling air inlet dish 30, and trapezoidal increase board 28 makes and produces certain distance between power motor 8 and the cooling air inlet dish 30, is favorable to the circulation of wind.
The outside of connecting cylinder 2 is provided with cold wind fan housing 9, the inboard cavity of cold wind fan housing 9 sets up to cooling chamber 5, the cooling wind export 21 with cooling chamber 5 intercommunication has been seted up on the surface of connecting cylinder 2 for the circulation of cooling wind, cold wind fan housing 9 passes through the fix with screw on the casing of slow speed PMSM 1, slow speed PMSM 1 is circular casing, cold wind fan housing 9 extends to slow speed PMSM 1 direction, leave the space between the periphery of cold wind fan housing 9 and the casing of slow speed PMSM 1, and correspond with the heat dissipation muscle 10 on the casing surface of slow speed PMSM 1, the convenience cooling wind blows to heat dissipation muscle 10 and dispels the heat.
The outer surface of the connecting cylinder 2 is provided with a hot air outlet 22, the hot air outlet 22 is used for circulating internal circulation hot air, a hot air ventilation pipeline I3 is connected to the hot air outlet 22, a circulating air channel 29 communicated with the inside is arranged on the shell of the slow-rotation-speed permanent magnet synchronous motor 1, and the outlet of the hot air ventilation pipeline I3 is communicated with the circulating air channel 29.
After passing through the tail end cover 7, the internal circulating hot air is concentrated into the internal hot air circulating fan blades 11 by the hot air guide wings 14, and the internal hot air circulating fan blades 11 rotate, so that the hot air enters the hot air ventilating duct I3 through the hot air outlet 22 on the connecting cylinder 2 and then enters the motor by the circulating air duct 29, and then the hot air and the cold air alternate with the outside while the circulation is realized.
External cooling air enters the inside of the connecting cylinder 2 through holes on the cooling air inlet disc 30, is concentrated to the external cooling fan blades 12 through the cold air guide wings 13, the external cooling fan blades 12 rotate, the cooling air is blown into the cooling chamber 5 through cooling air outlets 21 on the circumference of the connecting cylinder 2, the hot air ventilating duct I3 is firstly cooled in the cooling chamber 5, and then the cooling air is blown to the cooling ribs 10 through a space between the shell of the slow-rotation-speed permanent magnet synchronous motor 1 and the cold air fan housing 9, so that the purpose of cooling the motor is achieved.
Hot air from the inside of the slow-rotation-speed permanent magnet synchronous motor 1 passes through the internal hot air circulating fan blade 11, centrifugal wind pressure and wind quantity enter a hot air pipeline, the inside of the slow-rotation-speed permanent magnet synchronous motor 1, and the inner air channel of the rotor and the holes of the tail end cover 7 of the slow-rotation-speed permanent magnet synchronous motor 1 are circulated for a circle; the cooling ribs 10 and the hot air ventilation pipeline I3 from the outside of the slow-rotation permanent magnet synchronous motor 1 blow to the periphery of the motor, and the heat of the motor is cooled, so that the benign circulation of the wind from the outside strong wind pressure and wind volume is realized under the condition that the inside of the slow-rotation permanent magnet synchronous motor 1 hardly generates circulating wind, the performance of the motor is prevented from being reduced due to the fact that the temperature of the inside of the motor is too high, and the permanent magnet demagnetizing condition caused by the fact that the heat of the inside of the fan is not arranged.
Examples
The casing of slow speed PMSM 1 sets up square motor casing 20, set up the hole on square motor casing 20's afterbody end cover 7, the outside of connecting tube 2 is provided with down the fan housing 19, fixedly connected with outer fan housing 18 on the lower fan housing 19, square motor casing 20's top is provided with cooling tube fan housing 16, be provided with cooling tube 17 in the cooling tube fan housing 16, outer fan housing 18 and cooling tube 17 intercommunication, be connected with hot-blast ventilation duct II 31 on the connecting tube 2, hot-blast ventilation duct II 31 and cooling tube fan housing 16 intercommunication, and set up the circulation wind hole 25 with cooling tube fan housing 16 intercommunication on the square motor casing 20, the inside of cooling tube fan housing 16 is provided with the baffle, the baffle includes baffle I23, baffle II 24, baffle III 26, baffle I23 and baffle III 26 set up the bottom at cooling tube fan housing 16, baffle II 24 sets up at the top of cooling tube fan housing 16, baffle I23, baffle II 24, baffle III 26 cut apart the inside cavity of cooling tube fan housing 16, form the wind channel, be used for hot-blast circulation, increase and tube 17 contact time, the radiating effect is improved.
Specifically, the upper part of the square motor housing 20 is externally provided with the radiating pipe fan housing 16, an air channel is arranged in the radiating pipe fan housing 16, the radiating pipe fan housing 16 is in threaded connection with the square motor housing 20, and unlike a circular housing motor, the hot air outlet 22 on the circumference of the connecting cylinder 2 is arranged at the position and is used for realizing internal circulation hot air of the motor, the hot air is intensively blown into the radiating pipe fan housing 16 through a hot air ventilation pipeline, external cooling air enters through a hole of the cooling air inlet disc 30, enters into the external cooling fan blade 12 through the cold air guide wing 13, is blown through the external cooling fan blade 12, blows cooling air from the cooling air outlet 21 into the cooling chamber 5, and finally blows cooling air to the radiating pipe 17, thereby realizing cold and hot alternation and completing the cooling effect.
In a vertical mill, this fan structure may also be employed.
While the basic principles of the invention have been shown and described, there are various changes and modifications to the invention, which fall within the scope of the invention as hereinafter claimed, without departing from the spirit and scope of the invention.
Claims (5)
1. A fan structure for slow-speed permanent magnet synchronous motor, including connecting cylinder (2), two fan blades and power motor (8), its characterized in that: the left side of the connecting cylinder (2) is connected with an air inlet disc assembly (4), the output shaft of the power motor (8) passes through the air inlet disc assembly (4) to the inside of the connecting cylinder (2), double fan blades are arranged on the output shaft of the power motor (8), the double fan blades comprise an inner hot air circulation fan blade (11) and an outer cooling fan blade (12), the inner hot air circulation fan blade (11) is in back-to-back screw connection with the outer cooling fan blade (12), the air inlet disc assembly (4) comprises a cooling air inlet disc (30), an air hole is formed in the cooling air inlet disc (30), a cold air guide wing (13) is arranged in the connecting cylinder (2), a tail end cover (7) of the slow-rotation speed permanent magnet synchronous motor (1) is provided with an air guide wing (14) in the connecting cylinder (2), the connecting cylinder (2) is fixed between the cooling air inlet disc (30) and the tail end cover (7) through bolts, the connecting cylinder (2) is communicated with the inside of the slow-rotation speed permanent magnet synchronous motor (1) through the tail end cover (7), an annular baffle (15) is arranged in the connecting cylinder (2) and forms an annular baffle (15) between the annular baffle (12) and the annular baffle (12), the outside of cooling air inlet dish (30) is provided with trapezoidal increase board (28) along the circumferencial direction, and the outside of trapezoidal increase board (28) is fixed with solid fixed ring (27), and front end flange (6) and solid fixed ring (27) spiro union of power motor (8), and the hole has been seted up on the surface of cooling air inlet dish (30).
2. A fan structure for a slow speed permanent magnet synchronous motor according to claim 1, wherein: a cold air fan cover (9) is arranged on the outer side of the connecting cylinder (2), a cooling chamber (5) is arranged in an inner cavity of the cold air fan cover (9), a cooling air outlet (21) communicated with the cooling chamber (5) is formed in the surface of the connecting cylinder (2), the cold air fan cover (9) is fixed on a shell of the slow-rotation-speed permanent magnet synchronous motor (1) through screws, the slow-rotation-speed permanent magnet synchronous motor (1) is a circular shell, the cold air cover (9) extends towards the slow-rotation-speed permanent magnet synchronous motor (1), a space is reserved between the cold air cover (9) and the periphery of the shell of the slow-rotation-speed permanent magnet synchronous motor (1), and the cold air cover corresponds to the heat dissipation ribs (10) on the outer surface of the shell of the slow-rotation-speed permanent magnet synchronous motor (1).
3. A fan structure for a slow speed permanent magnet synchronous motor according to claim 2, wherein: the outer surface of the connecting cylinder (2) is provided with a hot air outlet (22), the hot air outlet (22) is connected with a hot air ventilation pipeline I (3), a circulating air channel (29) communicated with the inside is arranged on the shell of the slow-rotation-speed permanent magnet synchronous motor (1), and the outlet of the hot air ventilation pipeline I (3) is communicated with the circulating air channel (29).
4. A fan structure for a slow speed permanent magnet synchronous motor according to claim 1, wherein: the casing of slow-speed PMSM (1) sets up square motor casing (20), and the hole of seting up of afterbody end cover (7) of square motor casing (20), the outside of connecting cylinder (2) is provided with down fan housing (19), fixedly connected with outer fan housing (18) on lower fan housing (19), the top of square motor casing (20) is provided with cooling tube fan housing (16), is provided with cooling tube (17) in cooling tube fan housing (16), outer fan housing (18) and cooling tube (17) intercommunication, be connected with hot-blast air ventilation pipe II (31) on connecting cylinder (2), hot-blast air ventilation pipe II (31) and cooling tube fan housing (16) intercommunication, and set up circulation wind hole (25) with cooling tube fan housing (16) intercommunication on square motor casing (20).
5. A fan structure for a slow speed permanent magnet synchronous motor according to claim 4, wherein: the inside of cooling tube fan housing (16) is provided with the baffle, and the baffle includes baffle I (23), baffle II (24), baffle III (26), and baffle I (23) and baffle III (26) set up the bottom at cooling tube fan housing (16), and baffle II (24) set up the top at cooling tube fan housing (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310607015.3A CN116404809B (en) | 2023-05-26 | 2023-05-26 | Fan structure for slow-rotation-speed permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310607015.3A CN116404809B (en) | 2023-05-26 | 2023-05-26 | Fan structure for slow-rotation-speed permanent magnet synchronous motor |
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| Publication Number | Publication Date |
|---|---|
| CN116404809A CN116404809A (en) | 2023-07-07 |
| CN116404809B true CN116404809B (en) | 2023-10-20 |
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| CN202310607015.3A Active CN116404809B (en) | 2023-05-26 | 2023-05-26 | Fan structure for slow-rotation-speed permanent magnet synchronous motor |
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| CN117302279B (en) * | 2023-11-30 | 2024-01-26 | 新乡市鼎盛散热器有限公司 | Bidirectional multichannel heat abstractor of railcar |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB491260A (en) * | 1937-04-13 | 1938-08-30 | English Electric Co Ltd | Improvements in fan-cooled dynamo-electric machines |
| US2787720A (en) * | 1955-04-26 | 1957-04-02 | Allis Louis Co | Cooling of electric machines |
| FR2434509A1 (en) * | 1978-08-23 | 1980-03-21 | Siemens Ag | Totally enclosed electric machine - has cooling pipes mounted on stator inside outer casing, and supporting rings in turn hold end shields |
| CN2540696Y (en) * | 2002-05-10 | 2003-03-19 | 江苏锡安达防爆股份有限公司 | Frequency conversion motor |
| DE10361748A1 (en) * | 2003-12-29 | 2005-07-21 | Rausch, Hartmuth, Dr.-Ing. | Compact drive consisting of electric motor with its fan and axial extension housing on fan side of motor for holding electronic component groups |
| CN102684438A (en) * | 2012-05-28 | 2012-09-19 | 青岛海西电机有限公司 | Closed air-cooling permanent magnet synchronous motor and field-weakening speed adjusting method |
| CN207073474U (en) * | 2017-06-02 | 2018-03-06 | 西门子公司 | Fan and motor |
| JP2019097295A (en) * | 2017-11-22 | 2019-06-20 | 東芝三菱電機産業システム株式会社 | Totally-enclosed-fan-cooled type rotary electric machine |
| CN111049319A (en) * | 2018-10-15 | 2020-04-21 | 东芝三菱电机产业系统株式会社 | Totally-enclosed outer-fan-type rotating electrical machine and outside air fan assembly |
| CN112072855A (en) * | 2020-09-21 | 2020-12-11 | 中车株洲电机有限公司 | Electric machine |
-
2023
- 2023-05-26 CN CN202310607015.3A patent/CN116404809B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB491260A (en) * | 1937-04-13 | 1938-08-30 | English Electric Co Ltd | Improvements in fan-cooled dynamo-electric machines |
| US2787720A (en) * | 1955-04-26 | 1957-04-02 | Allis Louis Co | Cooling of electric machines |
| FR2434509A1 (en) * | 1978-08-23 | 1980-03-21 | Siemens Ag | Totally enclosed electric machine - has cooling pipes mounted on stator inside outer casing, and supporting rings in turn hold end shields |
| CN2540696Y (en) * | 2002-05-10 | 2003-03-19 | 江苏锡安达防爆股份有限公司 | Frequency conversion motor |
| DE10361748A1 (en) * | 2003-12-29 | 2005-07-21 | Rausch, Hartmuth, Dr.-Ing. | Compact drive consisting of electric motor with its fan and axial extension housing on fan side of motor for holding electronic component groups |
| CN102684438A (en) * | 2012-05-28 | 2012-09-19 | 青岛海西电机有限公司 | Closed air-cooling permanent magnet synchronous motor and field-weakening speed adjusting method |
| CN207073474U (en) * | 2017-06-02 | 2018-03-06 | 西门子公司 | Fan and motor |
| JP2019097295A (en) * | 2017-11-22 | 2019-06-20 | 東芝三菱電機産業システム株式会社 | Totally-enclosed-fan-cooled type rotary electric machine |
| CN111049319A (en) * | 2018-10-15 | 2020-04-21 | 东芝三菱电机产业系统株式会社 | Totally-enclosed outer-fan-type rotating electrical machine and outside air fan assembly |
| CN112072855A (en) * | 2020-09-21 | 2020-12-11 | 中车株洲电机有限公司 | Electric machine |
Non-Patent Citations (1)
| Title |
|---|
| 何思源 ; .全封闭永磁同步牵引电动机冷却系统设计.大功率变流技术.2012,(第03期),第48-53页. * |
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