CN105736424B - A kind of direct-drive supercharged centrifugal air compressor of the single-stage of vehicle fuel battery engine - Google Patents
A kind of direct-drive supercharged centrifugal air compressor of the single-stage of vehicle fuel battery engine Download PDFInfo
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- CN105736424B CN105736424B CN201610242828.7A CN201610242828A CN105736424B CN 105736424 B CN105736424 B CN 105736424B CN 201610242828 A CN201610242828 A CN 201610242828A CN 105736424 B CN105736424 B CN 105736424B
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- main shaft
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- fuel battery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/051—Axial thrust balancing
- F04D29/0513—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/057—Bearings hydrostatic; hydrodynamic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of direct-drive supercharged centrifugal air compressors of the single-stage of vehicle fuel battery engine, air compressor machine is driven by motor and is rotated, including stator, main shaft, the rotor being fixed in the middle part of main shaft, one end arranges spiral case and is fixed on the impeller connecting inside spiral case with main shaft one end, the rotor ultrahigh speed is driven to rotate by driver, the both ends of main shaft are supported by simply supported beam support construction.Compared with prior art, the present invention directly drives the plenum mode of receded disk impeller using heavy-duty motor ultrahigh speed, using high efficiency permanent magnet synchronous motor, oil-free lubrication air paillon hydrodynamic bearing and rotor-main shaft-blade wheel structure integrated design, impeller diameter is small, overall structure is simple, compact, small in size, light-weight, easy for assemble or unload, the air gas supply requirement of current full working scope vehicle fuel battery engine can be met, in the case where not increasing fuel battery engines volume, the volumetric specific power of fuel battery engines is improved.
Description
Technical field
The present invention relates to fuel battery engines technical fields, and in particular to a kind of big function of vehicle fuel battery engine
Rate ultrahigh speed single stage supercharging centrifugal air compressor.
Background technique
Air compressor machine is widely used in the fields such as aerospace, automobile, pipeline transportation, food packaging, in addition to this, air compressor machine
It is one of the critical component in new energy source fuel cell automobile engine auxiliary air gas supply assembly, the pressure and flow of output
Stoichiometric ratio, air wetting characteristic and the hydro-thermal management characteristic in fuel battery engines are directly affected, and then influences fuel
The voltage output of battery stack and the power output of fuel battery engines.
Since the power of high-power vehicle fuel battery engine is in hundred multikilowatts, the suitable fuel of high pressure ratio, big flow
The high-power air compressor machine of battery engine full working scope air demand and supply becomes one of the trend of design.Air compressor machine directlys adopt electricity
Machine driving, consumes the power of fuel battery car engine itself.To improve effective engine power output, reduces air compressor machine and post
Raw power consumption, efficient air compressor machine technology attract extensive attention.Moreover, because the ultrahigh speed of air compressor machine operates, improved with revolving speed, rotor
Bear increasing centrifugal force effect.General compression strength 1000MPa of permanent magnet material or so in rotor, and tensile strength
80MPa or so, the characteristic with resistance to compression not tension generally use the lesser rotor of diameter, purpose Compressor Rotor design is upper
It is to reduce tensile failure of the centrifugal force to permanent magnet under Super High Speed Condition.But in order to meet the air supply of high pressure ratio, big flow
Output requires, i.e. the high-power output of motor, guarantees that motor has enough torque outputs, and it is sufficiently large to require rotor to have
Diameter, above as can be seen that rotor-main axle structure Sizing requirements are very high.In addition, to improve centrifugal compressor
Output power, centrifugal air compressor rotor speed will generally reach 100, and the ultrahigh speed state of 000rpm or more is run, rotor-master
Under the synchronized working order of axis, the bearing of high-speed rotary main shaft support is put forward higher requirements.And traditional oil-lubricated bearing hardly possible
Exempting from the oil leak avoided can enter inside fuel battery engines, influence electrochemical reaction of fuel battery, therefore the axis of oil-free lubrication
Hold the optimal selection that support is air compressor machine.In conclusion from major axis diameter selection, bearing lubrication mode, bearing support distance and
The oil-free air inlets of fuel battery engines itself requires, subzero 30 degree of fuel battery engines low-temperature cool starting requirement etc. is more
From the point of view of aspect, existing traditional bearing is difficult to meet the performance requirement and requirement of fuel battery engines air compressor machine, even if
Specific bearing can satisfy requirement, but the problem of also bring along rotor dynamics stability, and ultrahigh speed problem is at present both at home and abroad
The hot and difficult issue of rotor dynamics area research.It is damaged that air compressor machine ultrahigh speed long-play will cause bearing supporting member
Danger, increase fault detection and diagnosis difficulty, superfast rotor can also cause the windmill of rotor surface to be lost, and then bring
Heat dissipation and cooling problem.Finally, as a part of vehicle fuel battery engine, required in air compressor structure size it is compact,
Structural strength is high.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind can satisfy 60-
The actual demand that the pressure of the air supply system of 80kW high power fuel cell engine is big, range of flow is wide has structure
The single stage supercharging centrifugation of the vehicle fuel battery engine of the features such as compact, high-efficient, small in size, light-weight, fast response time
Formula air compressor machine.
The purpose of the present invention can be achieved through the following technical solutions: a kind of single-stage of vehicle fuel battery engine is straight
Drive boosting centrifugal formula air compressor machine, the air compressor machine by motor drive rotation, the air compressor machine include motor stator, main shaft,
The rotor being fixed in the middle part of main shaft, one end arrange spiral case and are fixed on the impeller connecting inside spiral case with main shaft one end, driving
Device, driver drive the rotor ultrahigh speed rotation, and the both ends of the main shaft are propped up by simply supported beam support construction
Support.The frame mode of the heavy-duty motor permanent magnet big air gap using a pair of of pole and between motor stator, is improving frequency
It runs lower revolving speed and can obtain to reach and make a reservation for high revolving speed.
Air compressor machine rotary shaft uses the freely-supported of bilateral radial air foil bearing and unilateral axial air foil thrust bearing
Beam support construction drives rotor-main shaft-impeller integral structure ultrahigh speed rotation, realizes using driver direct-driving motor
Receded disk impeller high speed rotation realizes fuel battery engines plenum by impeller spiral case.It is driven simultaneously by control motor
Dynamic device, directly adjusting rotor revolving speed, adjust the purpose of delivery air pressure and flow, change fuel cell pile air
Stoichiometric ratio improves the hydrogen-oxygen electrochemical reaction efficiency on fuel cell membrane electrode, and it is defeated to improve fuel battery engines power
Out.
The present invention uses the supercharging mode of single-stage impeller spiral case, and structure is simple, and natural air is introduced through volute air-inlet mouth, and
It after the compression of impeller high speed rotation, is flowed out through gas outlet, realizes the function of ultrahigh speed rotating boosting.Performance indicator can reach high pressure
Than (2.5bar), big flow (100g/s), meet a wide range of interior air stream of the high-power vehicle fuel battery engine of 60-80kW
Measure supply requirement.It is unidirectionally arranged in air compressor machine overall structure using output loads, i.e. air compressor machine overall structure intermediate arrangement one
Motor includes motor stator and rotor, and the output of motor unilateral side spin load, using single impeller volute structure, impeller is by wearing
It crosses main shaft-rotor structure to connect, forms integral structure, impeller-main shaft-rotor structure passes through simply supported beam supporting form,
Rotary system (main shaft, rotor and impeller) is supported by bearing and bearing block, guarantees that its high speed stablizes rotation.Benefit
With driver direct-driving motor, rotor-main shaft-impeller integral structure ultrahigh speed rotation is driven, realizes that receded disk impeller is super
High speed rotation generates pressure-air.Pass through control motor driver, directly adjusting rotor-main shaft-wheel speed, root simultaneously
According to fuel battery engines demand, the purpose of delivery air pressure and flow is adjusted, changes the chemistry of fuel cell pile air
Ratio is measured, hydrogen, oxygen electrochemical reaction on improvement fuel cell membrane electrode promote fuel battery engine performance.
The simply supported beam support construction includes that the radial air foil bearing a that main shaft impeller end is arranged in and setting exist
The radial air foil bearing b and axial air foil dynamical pressure thrust bearing of the main shaft other end, the radial air paillon axis
The outside that a is fixed on the main shaft using circumference uniform distribution screw is held, the axial air foil thrust bearing uses hub form
It is fixed on the outside of the main shaft, the radial air foil bearing b is fixed on described axial empty using circumference uniform distribution screw
On the outside of gas foil thrust bearing.
Axial force is provided using the support of bilateral radial air paillon transverse bearing and unilateral axial air foil thrust bearing
The form of balance.Paillon is between axis and bearing, and compression paillon generates pressure-air film and makes main shaft when main shaft high speed rotation
It is suspended between air foil bearing, non-direct contact between main shaft and bearing can greatly reduce rubbing between bearing and axis
It wipes, improves the working efficiency of motor, axial air foil thrust bearing is fixed on main shaft using hub form, easy to disassemble,
Positioning and replacement.
One end of the axial air foil thrust bearing is equipped with protrusion, which is located at two thrust bearing foil disks
Between, and the protrusion cooperates with compressed gas when two thrust bearing foil disk ultrahigh speeds rotations.Such design can be kept away
Exempt from the axial float of entire shafting.
The end head that the main shaft connects axial airfoil piece thrust bearing is equipped with fixed plug, and fixation plug effect is
When main shaft high speed rotation, deformation of the axial air foil thrust bearing axis tray in high speed rotation is prevented, to guarantee axial direction
The gap of paillon in air foil thrust bearing.
The main shaft takes bearing stepped shaft, i.e., the described integrated spindle axis molding is not segmented, and installs the master at rotor
Shaft diameter is less than the major axis diameter at installation radial air foil bearing a；The main shaft is all made of hollow in addition at installation impeller
Main shaft, to mitigate main shaft weight.Main shaft uses bearing form, is not segmented, and reduces ultrahigh speed rotary part quantity and improves main shaft
Rigidity, reduces high-speed main spindle deflection deformation and difficulty is checked in dynamic balancing.Main shaft takes stepped-style convenient for rotor permanent magnet
Installation positioning, while being arranged with thrust bearing using two sides, have the function that balance rotating component mass center.Main shaft is largely taken
Mode is emptied convenient for mitigating rotary part quality, improves rotor dynamics.
The rotor uses and is followed successively by stainless steel main shaft, electrical sheet, 3 layers of permanent magnet of arrangement from inside to outside, and
Carbon fiber is wound outside the permanent magnet, the both ends of the rotor are carried out by the way of encapsulating every magnetic.Outside the permanent magnet
Winding carbon fiber is to prevent permanent magnet from rupturing under high speed rotation since centrifugal force acts on.The encapsulating is fixed permanent magnet
Under the premise of at permanent magnet both ends fill upper certain thickness high viscosity freezing plastic, to ensure intensity and every magnetic property.
The driver includes low-voltage signal connector and threephase cable, and motor is fixed by motor described in driver control
The change speed for the magnetic direction that son generates, to control the revolving speed of the main shaft.
The motor uses permanent magnet synchronous motor, and the permanent magnet synchronous motor uses a pair of of extremely high frequency method of operation, from
And it can reach high revolving speed needed for air compressor machine high-performance.
The air compressor machine further includes a water cooling system, and the water cooling system includes shell and water-cooled jacket, institute
The water cooling stated is set on the outside of the main shaft, and the shell is arranged on the outside of water-cooled jacket, in compressor operation, in shell
Cold water is passed between water-cooled jacket, plays the role of heat dissipation.
Compared with prior art, the beneficial effects of the present invention are embodied in following several respects:
1. directly driving impeller high speed rotation using heavy-duty motor, motor rated power 15Kw reaches as high as 100,000rpm,
It avoids using the additional machinery speed increasing mechanism such as speed increaser, structure is very compact, is suitble to automobile-used using requirement, reduces volume
And quality, the problems such as the gear mesh vibration noise, lubrication and the abrasion that avoid；Air compressor machine of the invention can meet 60-
Existing fuel cell hair can be improved than the air supply use demand of, big flow in 80Kw high power fuel cell engine high pressure
The power output of motivation；
2. the conveniently adjusted wheel speed of the centrifugal air compressor, and then change air compressor machine outlet pressure, flow, it can meet
The demand that fuel cell car operating condition frequently changes；
3. using novel air foil bearing, bilateral radial support air foil bearing and unilateral axial air paillon stop
Thrust bearing arrangement, it is compact simple, increase the reliability and safety of product, avoids the broken of rotary part under Super High Speed Condition
It is bad dangerous, reach the oil-free operating condition requirement of fuel battery engines air supply system；It is also beneficial to improve rotor dynamic balancing
Effect and rotor dynamics stability.It is also beneficial to reduce difficulty of processing and processing cost simultaneously, is conducive to industrialization
4. bearings at both ends seat of the present invention and air foil bearing are all made of tight fit mode, and are consolidated using the circumferential screw that is evenly distributed with
Determine mode.And axial air foil thrust bearing and main shaft use interference fit type, sufficiently meet automobile-used strength grade requirement.
5. rotor surface of the present invention is used between carbon fiber and permanent magnet using high-intensitive, light weight carbon fiber winding
Interference fit type, when ultrahigh speed rotates, permanent magnet is used by the radial compacting force provided by carbon fiber winding and magnitude of interference
The mode of structure latches ensure that the safety and reliability under rotor permanent magnet material high rotational speeds.
6. rotor permanent magnet two sides of the present invention encapsulating every magnetic design method, not only optimize high speed rotor thermal expansion become
Shape, and have the function of preventing permanent magnet leakage field.
Detailed description of the invention
Fig. 1 is external structure schematic diagram of the invention；
Fig. 2 is general structure schematic diagram of the invention；
Fig. 3 is rotor-main shaft-impeller integral structure schematic diagram in Fig. 2.
Wherein, 1 is spiral case, and 2 be right end electric motor end cap, and 3 be connection bolt, and 4 be water-cooled jacket, and 5 be shell, and 6 is fixed for motor
Son, 7 be low-voltage signal connector, and 8 be metal waterproof connector, and 9 be threephase cable, and 10 be left end axial direction air foil bearing seat,
11 be left end electric motor end cap, and 12 be pre-load nut, and 13 be impeller, and 14 be spiral case and impeller end cap, and 15 be radial air paillon axis
A is held, 16 be main shaft, and 17 be machine winding, and 18 be rotor, and 19 be carbon fiber, and 20 be radial air foil bearing b, and 21 be axial
Air foil thrust bearing, 22 be left end thrust bearing foil disk A, and 23 be left end thrust bearing foil disk B, and 24 fix for bearing
Plug, 25 be right end bearing paillon, and 26 be rotor encapsulating colloid A, and 27 be rotor encapsulating colloid B, and 28 be left end bearing paillon.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment
A kind of single stage supercharging centrifugal air compressor of vehicle fuel battery engine, structure is as depicted in figs. 1 and 2, empty
Press is connected to motor, and is driven by a motor rotation, which includes main shaft 16, the rotor 18 for being fixed on 16 middle part of main shaft, electricity
Machine stator 6, spiral case 1 and the impeller 13 that the inside of spiral case 1 is connect with 16 one end of main shaft is set, spiral case 1 and right end electric motor end cap 2
Connection, and be fixed by connecting bolt 3, impeller 13 is fixed by pre-load nut 12 with main shaft, and using high-intensitive gluing
It connects, to guarantee that impeller runs at high speed safety；The two sides of motor stator 6 are equipped with machine winding 17, which passes through three
Phase cable 9 and low-voltage signal connector 7 connect motor, and threephase cable 9 is equipped with metal waterproof connector 8.The air compressor machine also wraps
Shell 4 and water-cooled jacket 5 are included, the outside of main shaft 16 is arranged in water-cooled jacket 5, and the setting of shell 4 is transported in 5 outside of water-cooled jacket in air compressor machine
When row, cold water is passed between shell 5 and water-cooled jacket 4, plays the role of heat dissipation.
The both ends of main shaft are supported by simply supported beam support construction, wherein rotor-main shaft-impeller integral structure is such as
Shown in Fig. 3, which includes that the radial air foil bearing a15 that 16 impeller end of main shaft is arranged in and setting exist
The radial air foil bearing b20 and axial air foil thrust bearing 21 of 16 other end of main shaft, radial air foil bearing a15
The outside of main shaft 16 is fixed on using circumference uniform distribution screw, axial air foil thrust bearing 21 is fixed on master using hub form
The outside of axis 16, radial air foil bearing b20 are fixed on outside axial air foil thrust bearing 21 using circumference uniform distribution screw
Side, the radial air foil bearing a15 and radial air foil bearing b20 are respectively equipped with right end bearing paillon 25 and left end bearing
Paillon 28, the two paillons generate pressure-air film in 16 high speed rotation of main shaft and main shaft 16 are made to be suspended in air foil bearing
Between.Axial air foil thrust bearing 21 is equipped with protrusion far from one end of impeller 13, and protrusion is located at left end thrust bearing paillon
Between disk A22 and left end thrust bearing foil disk B23, to avoid the axial float of entire shafting；Main shaft 16 connects axial air
One end head of foil thrust bearing 21 is equipped with the fixed plug 24 of bearing, for preventing radial-axial air foil thrust bearing axis
Deformation of the tray in high speed rotation, to guarantee the gap of paillon in radial-axial air foil thrust bearing 21.
It is additionally provided with rotor 18 corresponding with motor stator 6 at the middle part of main shaft 16, which uses from inside to outside successively
For stainless steel main shaft, electrical sheet, 3 layers of permanent magnet concentric winding arrangement, and carbon fiber 19, rotor are wound outside rotor 18
Both ends carry out being respectively formed rotor encapsulating colloid A26 and rotor encapsulating colloid B27 every magnetic by the way of encapsulating.
Radial air foil bearing b20 is mounted on left end axial direction air foil bearing seat 10, radial air foil bearing
A15 is mounted on right end axial air foil bearing seat, and spiral case is equipped between right end axial air foil bearing seat and spiral case
Left end electric motor end cap is equipped in the left end of air compressor machine to resist right end axial air foil bearing seat with impeller end cap 14
11, to resist left end axial direction air foil bearing seat 10, bearing 24 and left end thrust bearing foil disk B23 of fixed plug, tool
Body structure is as shown in Figure 2.
Motor connects 17 component of machine winding by low-voltage signal connector 7 and threephase cable 9, is driven by motor control
The tangential torque that motor stator 6, winding magnetic line of force magnetic field generate drives 18 running speeds of rotor, and then rotor-main shaft drives
High speed rotation, motor realize receded disk impeller high speed rotation compressed air by the different revolving speed control of rotor 18 to impeller together,
Reach the gas load output of high pressure ratio, big flow.High-power vehicle fuel battery can be met according to different condition input to start
Air mass flow supply requirement in machine is a wide range of.
Claims (2)
1. a kind of direct-drive supercharged centrifugal air compressor of the single-stage of vehicle fuel battery engine, the air compressor machine is driven by motor
Rotation, which is characterized in that the air compressor machine includes motor stator, main shaft, the rotor being fixed in the middle part of main shaft, one end arrangement snail
Shell and it being fixed on impeller, the driver connect inside spiral case with main shaft one end, the driver driving rotor ultrahigh speed rotates,
The both ends of the main shaft are supported by simply supported beam support construction；
The simply supported beam support construction includes that the radial air foil bearing a of main shaft impeller end is arranged in and is arranged in main shaft
The radial air foil bearing b and axial air foil dynamical pressure thrust bearing of the other end, the radial air foil bearing a are adopted
The outside of the main shaft is fixed on circumference uniform distribution screw, the axial air foil dynamical pressure thrust bearing is solid using hub form
Due to the outside of the main shaft, the radial air foil bearing b is fixed on the axial air using circumference uniform distribution screw
On the outside of foil dynamical pressure thrust bearing；
The left end of the air compressor machine is equipped with end cap；
One end of the axial air foil dynamical pressure thrust bearing is equipped with protrusion, which is located at two thrust bearing foil disks
Between, and the protrusion cooperates with compressed gas when two thrust bearing foil disk ultrahigh speeds rotations；
The end head that the main shaft connects axial airfoil piece hydrodynamic thrust bearing is equipped with fixed plug, for preventing axial air
Deformation of the foil dynamical pressure thrust bearing in high speed rotation；
The main shaft is whole stepped axis, and installs the major axis diameter at rotor and be less than installation radial air foil bearing
Major axis diameter at a；The main shaft is all made of hollow main shaft in addition at installation impeller；
The rotor uses and is followed successively by stainless steel main shaft, electrical sheet, 3 layer arrangement mode of permanent magnet from inside to outside, and described
Permanent magnet outside wind carbon fiber；
The air compressor machine further includes a water cooling system, and the water cooling system includes shell and water-cooled jacket, described
Water cooling is set on the outside of the motor stator, and the shell is arranged on the outside of water-cooled jacket, in compressor operation, in shell
The water flowing between water-cooled jacket, plays the role of heat dissipation.
2. a kind of direct-drive supercharged centrifugal air compressor of single-stage of vehicle fuel battery engine according to claim 1,
It is characterized in that, the driver includes low-voltage signal connector and threephase cable, and motor passes through motor described in driver control
Stator generates the change speed of magnetic direction, to control the revolving speed of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242828.7A CN105736424B (en) | 2016-04-19 | 2016-04-19 | A kind of direct-drive supercharged centrifugal air compressor of the single-stage of vehicle fuel battery engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242828.7A CN105736424B (en) | 2016-04-19 | 2016-04-19 | A kind of direct-drive supercharged centrifugal air compressor of the single-stage of vehicle fuel battery engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736424A CN105736424A (en) | 2016-07-06 |
| CN105736424B true CN105736424B (en) | 2019-01-25 |
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| CN201610242828.7A Active CN105736424B (en) | 2016-04-19 | 2016-04-19 | A kind of direct-drive supercharged centrifugal air compressor of the single-stage of vehicle fuel battery engine |
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| CN106602765B (en) * | 2017-02-20 | 2023-08-01 | 上海优耐特斯压缩机有限公司 | Cooling method and cooling system for rotor of direct-drive centrifugal machine of high-speed permanent magnet motor |
| CN108591084B (en) * | 2018-04-12 | 2019-07-26 | 石家庄金士顿轴承科技有限公司 | A kind of direct-connected centrifugal blower of fuel cell high speed |
| WO2020163605A1 (en) * | 2019-02-07 | 2020-08-13 | Emerson Climate Technologies, Inc. | Foil bearing assembly |
| CN110425156A (en) * | 2019-08-29 | 2019-11-08 | 势加透博洁净动力如皋有限公司 | A kind of two-stage gas suspension centrifugal electric directly drives air compressor machine |
| CN111412151A (en) * | 2020-04-08 | 2020-07-14 | 江苏毅合捷汽车科技股份有限公司 | Single-stage supercharging direct-drive centrifugal air compressor of fuel cell engine |
| CN112260440B (en) * | 2020-10-13 | 2022-02-25 | 常州环能涡轮动力股份有限公司 | High-speed centrifugal air compressor |
| CN112879264A (en) * | 2021-01-22 | 2021-06-01 | 散裂中子源科学中心 | Heat load chopper and control system thereof |
| CN112555192B (en) * | 2021-02-19 | 2021-06-01 | 北京伯肯当代氢燃料电池实验室有限公司 | High-speed rotor for fuel cell air compressor and assembling method thereof |
| CN113048075A (en) * | 2021-03-16 | 2021-06-29 | 西安交通大学 | Air pressurization system with centrifugal oil pump for fuel cell |
| CN114635872B (en) * | 2022-04-19 | 2023-09-05 | 广东美芝制冷设备有限公司 | Fan and cleaning equipment |
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