CN113638802B - Rare earth permanent magnet power generation equipment for off-grid base station - Google Patents
Rare earth permanent magnet power generation equipment for off-grid base station Download PDFInfo
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- CN113638802B CN113638802B CN202110806152.0A CN202110806152A CN113638802B CN 113638802 B CN113638802 B CN 113638802B CN 202110806152 A CN202110806152 A CN 202110806152A CN 113638802 B CN113638802 B CN 113638802B
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- rare earth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/042—Rotating electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
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- 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
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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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Thermal Sciences (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses rare earth permanent magnet power generation equipment for an off-grid base station, which comprises a fixed frame, and a gasoline generator and a rare earth permanent magnet generator which are fixed on the fixed frame, wherein an output shaft of the gasoline generator is connected with an input shaft of the rare earth permanent magnet generator through a coupler, and a heat insulation plate is arranged between the gasoline generator and the rare earth permanent magnet generator; the coupler comprises a first connecting portion and a second connecting portion which are coaxially arranged, the first connecting portion and the second connecting portion are fixed through a plurality of radiating connecting pieces, a radiating gap is formed between every two adjacent radiating connecting pieces, a plurality of air inlets are arranged on the second connecting portion and close to the axis, and the air inlets are communicated with the radiating gap. The invention provides rare earth permanent magnet power generation equipment for an off-grid base station, which can isolate a gasoline generator from a rare earth permanent magnet generator, reduce the heat transferred from one side of an engine to one side of the rare earth permanent magnet generator and avoid the demagnetization of a rare earth permanent magnet in the rare earth permanent magnet generator due to high temperature.
Description
Technical Field
The invention relates to the technical field of power generation equipment, in particular to rare earth permanent magnet power generation equipment for an off-grid base station.
Background
The rare earth permanent magnet motor is a novel permanent magnet motor appearing in the early 70 s, and has a series of advantages of small size, light weight, high efficiency, good characteristics and the like due to the high magnetic energy product and high coercivity (particularly high intrinsic coercivity) of the rare earth permanent magnet. However, the rare earth permanent magnet used in the method is easy to demagnetize at high temperature, so that the generating efficiency is reduced, and even the rare earth permanent magnet completely fails. Especially in the power generation equipment that the gasoline engine drives the permanent magnet motor to generate electricity, the gasoline engine can generate a large amount of heat, and the risk of demagnetization of the rare earth permanent magnet is further increased. The heat dissipation of the rare earth permanent magnet power generation equipment is vital, so the rare earth permanent magnet power generation equipment for the off-grid base station is designed, a gasoline generator and the rare earth permanent magnet generator can be isolated, the heat transmitted to one side of the rare earth permanent magnet generator from one side of the engine is reduced, and the rare earth permanent magnet in the rare earth permanent magnet generator is prevented from demagnetizing due to high temperature.
Chinese patent application publication No. CN204152636U, published as 2015, 02, 11, entitled "rare earth permanent magnet high-power energy-saving gasoline generator", discloses a rare earth permanent magnet high-power energy-saving gasoline generator, which comprises a gasoline engine, and a generator (energy saving is 20-30%) and a heat recovery device (energy saving is 15%) which are respectively connected with the gasoline engine, wherein the gasoline engine converts power into electric power through the generator, and waste heat energy generated by the engine is recovered through the heat recovery device; the core power generation component of the generator comprises a rare earth permanent magnet brushless rotor and a low-consumption stator. The rare earth permanent magnet brushless rotor comprises permanent magnet tiles. A damping device is arranged in the gasoline engine, and sound-absorbing cotton is arranged at the gap of the shell of the gasoline engine. The utility model discloses a new material-tombarthite permanent magnetism brushless rotor and low consumption stator constitution core power generation part, because the motor magnetic field mainly is that the permanent magnet provides, need not excite the field winding, therefore do not have the power consumption of electricity excitation part to make this product synthesize energy-conservation 35% ~40% than traditional generator. But the generator still does not solve the above problems.
Disclosure of Invention
The invention provides rare earth permanent magnet power generation equipment for an off-grid base station, which aims to overcome the defect that in power generation equipment in the prior art, a gasoline engine drives a permanent magnet motor to generate power, so that the risk of demagnetization of a rare earth permanent magnet is increased due to the fact that the gasoline engine can generate a large amount of heat, and the rare earth permanent magnet power generation equipment can isolate a gasoline generator from the rare earth permanent magnet generator, reduce the heat transferred from one side of an engine to one side of the rare earth permanent magnet generator and avoid demagnetization of the rare earth permanent magnet in the rare earth permanent magnet generator due to high temperature.
In order to achieve the purpose, the invention adopts the following technical scheme:
a rare earth permanent magnet power generation device for an off-grid base station comprises a fixing frame, and a gasoline generator and a rare earth permanent magnet generator which are fixed on the fixing frame, wherein an output shaft of the gasoline generator is connected with an input shaft of the rare earth permanent magnet generator through a coupler, and a heat insulation plate is arranged between the gasoline generator and the rare earth permanent magnet generator; the shaft coupling includes first connecting portion and the second connecting portion of coaxial setting, and first connecting portion are fixed with the output shaft of petrol generator, and the second connecting portion is fixed with tombarthite permanent magnet generator's input shaft, and first connecting portion and second connecting portion are fixed through a plurality of heat dissipation connection piece, and a plurality of heat dissipation connection piece sets up along the axis circumference of shaft coupling, forms the heat dissipation clearance between two adjacent heat dissipation connection pieces, is equipped with on the second connecting portion to be close to the axis position and is equipped with a plurality of inlet port, inlet port and heat dissipation clearance intercommunication. .
Among the above-mentioned technical scheme, keep apart gasoline engine generator and tombarthite permanent magnet generator through the heat insulating board, reduce the heat that gasoline engine one side transmitted tombarthite permanent magnet generator one side, avoid the tombarthite permanent magnet among the tombarthite permanent magnet generator to lead to the demagnetization because of high temperature. When the gasoline engine generator operates, a large amount of heat can be generated, the temperature reaches hundreds of degrees centigrade, if the gasoline engine generator and the rare earth permanent magnet generator are not isolated by the heat insulation plate, in the long-term operation process, the heat on one side of the gasoline engine is transmitted to one side of the rare earth permanent magnet generator in a large amount, in addition, the heat productivity of the rare earth permanent magnet generator can cause the temperature of the rare earth permanent magnet generator to rise, and the rare earth permanent magnet generator has the risk of demagnetization caused by high temperature. The shaft coupling can play thermal-insulated effect, avoids the output shaft of petrol generator to transmit the heat inside the tombarthite permanent magnet generator through tombarthite permanent magnet generator's input shaft. When the power generation equipment runs, the coupler rotates, the heat dissipation connecting piece can generate centrifugal force on air, the air quickly enters the heat dissipation gap through the air inlet hole to dissipate heat of the heat dissipation connecting piece, the temperature of the heat dissipation connecting piece is not easy to rise, and the heat dissipation connecting piece plays a role in heat dissipation and can also play a role in connecting the first connecting portion and the second connecting portion. The tombarthite permanent magnet generator's tombarthite permanent magnet generally sets up on the rotor, directly with tombarthite permanent magnet generator input shaft, if not thermal-insulated, the output shaft of petrol generator can lead to tombarthite permanent magnet temperature to rise fast on a large amount of heat transmission to tombarthite permanent magnet generator's the input shaft, has the tombarthite permanent magnet because high temperature leads to the risk of demagnetization. The coupler has the advantages that the coupler plays a connecting role and a heat insulation role, and the faster the engine runs, the better the heat dissipation effect of the coupler is.
Preferably, the heat dissipating connecting piece, the first connecting portion and the second connecting portion are fixed to form an integral structure. The structure can guarantee joint strength, guarantees simultaneously that the heat can distribute away through the radiating connection piece.
Preferably, all the heat dissipation gaps communicate on the side close to the center of the coupling. The structure can guarantee that every heat dissipation clearance can fully admit air, guarantees the radiating effect of every radiating connection piece.
Preferably, the length direction of the radiating connecting sheet is overlapped with the radial direction of the coupler.
Preferably, the rare earth permanent magnet generator comprises a winding stator and a rare earth permanent magnet rotor, wherein a radiating pipe is arranged in the winding stator, and two ends of the radiating pipe are communicated with the outside of the rare earth permanent magnet generator shell. The cooling tube stretches into inside can dispel the heat to its inside rare earth permanent magnet generator, and it does not communicate with rare earth permanent magnet generator is inside, avoids inside outside steam and the dust pollution rare earth permanent magnet generator.
Preferably, the heat radiator further comprises a water-cooling circulation heat radiation system, and two ends of the heat radiation pipe are communicated with the water-cooling circulation heat radiation system. The water-cooling circulation heat dissipation system can enable various common water-cooling systems to dissipate heat of the heat dissipation pipe.
Preferably, the gasoline engine further comprises a cooling fan, a rotating shaft of the cooling fan is coaxially connected with an input shaft of the rare earth permanent magnet generator, and the cooling fan is arranged on one side, far away from the gasoline engine generator, of the rare earth permanent magnet generator. The cooling fan accelerates air flow and increases the cooling effect, and the cooling fan is directly connected with the soil permanent magnet generator without additional control and circuit structures.
Preferably, the air outlet of the heat dissipation fan faces the heat dissipation pipe, and a tapered air guiding opening is formed in one side of the heat dissipation pipe facing the heat dissipation fan. The structure can blow relatively cold air at the outer side into the radiating pipe and the shell of the rare earth permanent magnet generator to radiate heat.
Preferably, the rare earth permanent magnet rotor is provided with a vent hole, an outlet of the vent hole is formed in the outer side wall of the rare earth permanent magnet rotor, and an inlet of the vent hole is formed in the end face, close to the axis, of the rare earth permanent magnet rotor. The structure can increase the ventilation volume of cooling tube, increases the radiating effect.
The invention has the beneficial effects that: (1) the gasoline generator and the rare earth permanent magnet generator are isolated by the heat insulation plate, so that the heat transferred from one side of the engine to one side of the rare earth permanent magnet generator is reduced, and the rare earth permanent magnet in the rare earth permanent magnet generator is prevented from demagnetizing due to high temperature; (2) the output shaft that can reduce petrol generator and tombarthite permanent magnet generator's input shaft heat conduction volume, it is inside to avoid petrol generator's output shaft to transmit the heat to tombarthite permanent magnet generator through tombarthite permanent magnet generator's input shaft: (3) the cooling tube stretches into inside can dispel the heat to its inside rare earth permanent magnet generator, and it does not communicate with rare earth permanent magnet generator is inside, avoids inside outside steam and the dust pollution rare earth permanent magnet generator.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
In the figure: the cooling structure comprises a fixing frame 1, a gasoline engine generator 2, a rare earth permanent magnet generator 3, a winding stator 3.1, a rare earth permanent magnet rotor 3.2, a cooling pipe 3.3, a ventilation hole 3.4, a coupler 4, a first connecting part 4.1, a second connecting part 4.2, a cooling connecting sheet 4.3, a cooling gap 4.4, an air inlet hole 4.5, a heat insulation board 5, a conical air guide 6 and a cooling fan 7.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1:
as shown in fig. 1 and 2, the rare earth permanent magnet power generation device for the off-grid base station comprises a fixing frame 1, and a gasoline generator 2 and a rare earth permanent magnet generator 3 which are fixed on the fixing frame 1, wherein an output shaft of the gasoline generator 2 is connected with an input shaft of the rare earth permanent magnet generator 3 through a coupling 4, and a heat insulation plate 5 is arranged between the gasoline generator 2 and the rare earth permanent magnet generator 3. The coupler 4 comprises a first connecting portion 4.1 and a second connecting portion 4.2 which are coaxially arranged, the first connecting portion 4.1 is fixed with an output shaft of the gasoline generator 2, the second connecting portion 4.2 is fixed with an input shaft of the rare earth permanent magnet generator 3, the first connecting portion 4.1 and the second connecting portion 4.2 are fixed through a plurality of radiating connecting pieces 4.3, and the radiating connecting pieces 4.3, the first connecting portion 4.1 and the second connecting portion 4.2 are fixed into an integral structure. A plurality of radiating connecting pieces 4.3 are arranged along the axial direction of the coupler 4, and the length direction of the radiating connecting pieces 4.3 is coincided with the radial direction of the coupler 4. A heat dissipation gap 4.4 is formed between two adjacent heat dissipation connecting sheets 4.3, and the heat dissipation gaps 4.4 are communicated at one side close to the center of the coupler 4. The second connecting portion 4.2 is provided with a plurality of air inlets 4.5 near the axis, and the air inlets 4.5 are communicated with the heat dissipation gap 4.4.
Among the above-mentioned technical scheme, keep apart gasoline engine 2 and tombarthite permanent magnet generator 3 through heat insulating board 5, reduce the heat that gasoline engine one side transmitted 3 one sides of tombarthite permanent magnet generator, avoid the tombarthite permanent magnet in the tombarthite permanent magnet generator 3 to lead to the demagnetization because of high temperature. When the gasoline engine generator 2 operates, a large amount of heat can be generated to reach hundreds of degrees centigrade, if the heat insulation plate 5 is not used for isolating the gasoline engine generator 2 and the rare earth permanent magnet generator 3, in the long-term operation process, the heat on one side of the gasoline engine is transmitted to one side of the rare earth permanent magnet generator 3 in a large amount, in addition, the heat productivity of the rare earth permanent magnet generator 3 per se can cause the temperature of the rare earth permanent magnet generator 3 to rise, and the rare earth permanent magnet has the risk of demagnetization caused by high temperature. The coupler 4 can play a role in heat insulation, and the output shaft of the gasoline generator 2 is prevented from transmitting heat to the rare earth permanent magnet generator 3 through the input shaft of the rare earth permanent magnet generator 3. When the power generation equipment runs, the coupler 4 rotates, the heat dissipation connecting piece 4.3 can generate centrifugal force on air, the air quickly enters the heat dissipation gap 4.4 through the air inlet hole 4.5 to dissipate heat of the heat dissipation connecting piece 4.3, the temperature of the heat dissipation connecting piece 4.3 is not easy to rise, and the heat dissipation connecting piece 4.3 plays a role in heat dissipation and can also play a role in connecting the first connecting part 4.1 with the second connecting part 4.2. The tombarthite permanent magnet generator 3's tombarthite permanent magnet generally sets up on the rotor, directly with tombarthite permanent magnet generator 3 input shaft, if not thermal-insulated, on the output shaft of petrol generator 2 transmits the input shaft of tombarthite permanent magnet generator 3 with a large amount of heat, can lead to tombarthite permanent magnet temperature to rise fast, has the tombarthite permanent magnet because of the risk that the high temperature leads to the demagnetization. The coupler 4 has the advantages that the connection effect and the heat insulation effect are achieved, the faster the engine runs, the better the heat dissipation effect of the coupler 4 is.
Example 2:
as shown in fig. 1, based on embodiment 1, the rare earth permanent magnet generator 3 includes a wound stator 3.1 and a rare earth permanent magnet mover 3.2, a heat dissipation pipe 3.3 is disposed in the wound stator 3.1, and two ends of the heat dissipation pipe 3.3 are communicated with the outside of the casing of the rare earth permanent magnet generator 3. And the rare earth permanent magnet rotor 3.2 is provided with a vent hole 3.4, the outlet of the vent hole 3.4 is arranged on the outer side wall of the rare earth permanent magnet rotor 3.2, and the inlet of the vent hole 3.4 is arranged on the end surface of the rare earth permanent magnet rotor 3.2 close to the axis. Still include radiator fan 7, radiator fan 7's axis of rotation and the input shaft coaxial coupling of tombarthite permanent magnet generator 3, radiator fan 7 sets up in tombarthite permanent magnet generator 3 one side of keeping away from petrol generator 2. The air outlet of the heat dissipation fan 7 faces the heat dissipation pipe 3.3, and one side of the heat dissipation pipe 3.3 facing the heat dissipation fan 7 is provided with a conical air guide 6 port. The heat radiation fan 7 accelerates air flow and increases heat radiation effect, and the heat radiation fan 7 is directly connected with the soil permanent magnet generator without additional control and circuit structure. The cooling tube 3.3 stretches into 3 inside can dispel the heat to its inside rare earth permanent magnet generator, and it does not communicate with 3 inside rare earth permanent magnet generator, avoids inside outside steam and dust pollution rare earth permanent magnet generator 3.
The beneficial effects of the invention are: (1) the gasoline generator 2 and the rare earth permanent magnet generator 3 are isolated by the heat insulation plate 5, so that the heat transferred from one side of the engine to one side of the rare earth permanent magnet generator 3 is reduced, and the rare earth permanent magnet in the rare earth permanent magnet generator 3 is prevented from demagnetizing due to high temperature; (2) can reduce the output shaft of petrol generator 2 and tombarthite permanent magnet generator 3's input shaft heat conduction volume, avoid petrol generator 2's output shaft to transmit the heat to tombarthite permanent magnet generator 3 through tombarthite permanent magnet generator 3's input shaft inside: (3) the cooling tube 3.3 stretches into 3 insides of tombarthite permanent magnet generator and can dispel the heat to its inside, and it does not communicate with 3 insides of tombarthite permanent magnet generator, avoids inside 3 tombarthite permanent magnet generator of outside steam and dust pollution.
Claims (8)
1. A rare earth permanent magnet power generation device for an off-grid base station is characterized by comprising a fixing frame, a gasoline generator and a rare earth permanent magnet generator, wherein the gasoline generator and the rare earth permanent magnet generator are fixed on the fixing frame; the coupler comprises a first connecting part and a second connecting part which are coaxially arranged, the first connecting part is fixed with an output shaft of the gasoline generator, the second connecting part is fixed with an input shaft of the rare earth permanent magnet generator, the first connecting part and the second connecting part are fixed through a plurality of radiating connecting sheets, the radiating connecting sheets are circumferentially arranged along the axis of the coupler, a radiating gap is formed between every two adjacent radiating connecting sheets, a plurality of air inlets are formed in the positions, close to the axis, of the second connecting part and communicated with the radiating gap, the rare earth permanent magnet generator comprises a winding stator and a rare earth permanent magnet rotor, a radiating pipe is arranged in the winding stator, and two ends of the radiating pipe are communicated with the outside of the shell of the rare earth permanent magnet generator; the rare earth permanent magnet rotor is provided with a ventilation hole, an outlet of the ventilation hole is formed in the outer side wall of the rare earth permanent magnet rotor, and an inlet of the ventilation hole is formed in the end face, close to the axis, of the rare earth permanent magnet rotor.
2. The rare earth permanent magnet power generation device for the off-grid base station as claimed in claim 1, wherein the heat dissipation connecting piece, the first connecting portion and the second connecting portion are fixed to form an integral structure.
3. The rare earth permanent magnet power generation equipment for the off-grid base station as claimed in claim 1, wherein all the heat dissipation gaps are communicated at a side close to the center of the coupler.
4. The rare earth permanent magnet power generation equipment for the off-grid base station as claimed in claim 1, 2 or 3, wherein the length direction of the heat dissipation connecting sheet is coincident with the radial direction of the coupler.
5. The rare earth permanent magnet power generation equipment for the off-grid base station as recited in claim 1, further comprising a water-cooling circulation heat dissipation system, wherein both ends of the heat dissipation pipe are communicated with the water-cooling circulation heat dissipation system.
6. The rare earth permanent magnet power generation equipment for the off-grid base station as recited in claim 1, further comprising a heat dissipation fan, wherein a rotation shaft of the heat dissipation fan is coaxially connected with an input shaft of the rare earth permanent magnet generator, and the heat dissipation fan is disposed on a side of the rare earth permanent magnet generator away from the gasoline generator.
7. The rare earth permanent magnet power generation equipment for the off-grid base station as claimed in claim 6, wherein the air outlet of the heat dissipation fan faces the heat dissipation pipe, and a tapered air guiding opening is formed at one side of the heat dissipation pipe facing the heat dissipation fan.
8. The rare earth permanent magnet power generation device for the off-grid base station as claimed in claim 1, 2 or 3, wherein the heat insulation plate is arranged between the rare earth permanent magnet generator and the coupling.
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| CN202110806152.0A CN113638802B (en) | 2021-07-16 | 2021-07-16 | Rare earth permanent magnet power generation equipment for off-grid base station |
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| CN202110806152.0A CN113638802B (en) | 2021-07-16 | 2021-07-16 | Rare earth permanent magnet power generation equipment for off-grid base station |
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| CN113638802B true CN113638802B (en) | 2022-09-23 |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005044327B4 (en) * | 2005-09-16 | 2008-04-17 | Siemens Ag | Electric machine with permanent magnets |
| JP5157138B2 (en) * | 2006-11-24 | 2013-03-06 | 株式会社日立製作所 | Permanent magnet rotating electrical machine and wind power generation system |
| CN201007233Y (en) * | 2007-02-15 | 2008-01-16 | 北京金峰鼎戍科技有限公司 | Mute type rare-earth permanent magnetism electric generating set |
| EP3057203A1 (en) * | 2015-02-13 | 2016-08-17 | Siemens Aktiengesellschaft | Rotor of a permanently excited synchronous machine and method for producing the same |
| CN107797064A (en) * | 2017-10-18 | 2018-03-13 | 重庆理工大学 | A kind of minitype permanent magnetism intermediate frequency liquid cooling generator test system |
| CN211053052U (en) * | 2019-12-09 | 2020-07-21 | 朱同心 | Multifunctional large-scale coupling quick dismounting device |
| CN210265572U (en) * | 2020-02-26 | 2020-04-07 | 深圳拒马科技有限公司 | Coupling of new forms of energy dynamic braking system |
| CN111969736A (en) * | 2020-08-17 | 2020-11-20 | 夏保友 | High-efficient water-cooling hydroelectric generator structure |
| CN112366894A (en) * | 2020-11-18 | 2021-02-12 | 江西力玛机电科技有限公司 | Rare earth permanent magnet motor |
| CN112937290B (en) * | 2021-03-10 | 2021-09-10 | 范小龙 | Transmission shaft heat insulation type power switching device for electric vehicle |
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