CN208294790U - A kind of full-shield formula high speed centrifugation air compressor machine - Google Patents
A kind of full-shield formula high speed centrifugation air compressor machine Download PDFInfo
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- CN208294790U CN208294790U CN201820742550.4U CN201820742550U CN208294790U CN 208294790 U CN208294790 U CN 208294790U CN 201820742550 U CN201820742550 U CN 201820742550U CN 208294790 U CN208294790 U CN 208294790U
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Abstract
The utility model discloses a kind of full-shield formula high speed centrifugation air compressor machines, mainly include circulating pump and shield electric machine, and circulating pump and shield electric machine form reliable sealing by O-ring by flanged joint；Entire rotor-support-foundation system provides support by air hydrodynamic foil bearing, and impeller leading portion is thrust bearing and radical-thrust combination bearing, and rear end uses purely radial bearing.It is cooling that motor is carried out by inner-outer circulation cooling system, guarantee motor stabilizing operation, the utility model structure is simple, use safe and convenient, by using full frame shield structure, the advantages such as No leakage, later maintenance is simple, use cost is low, and high revolving speed may be implemented by circulating pump application air-bearing technology, the air high suitable for small in size, compression ratio compresses occasion.
Description
Technical field
The utility model relates to a kind of fuel battery air pressure charging system technical field, specially a kind of full-shield formula high speed
Centrifugal air compressor.
Background technique
As national energy-saving, environmental protection pressure increasingly increase.Hydrogen Energy is as a kind of efficient, cleaning, sustainable " carbon-free " energy
Source has obtained the common concern of countries in the world, is especially more widely applied in fuel cell car field.
Automobile uses hydrogen fuel cell, is reacted using hydrogen and oxygen chemical, produces electricl energy and directly drive automobile, this process is unique
Product is water, therefore fuel motor automobile can be really achieved discharge no pollution during the work time.
It is not related to burning in fuel cell operations, no mechanical loss, than energy conversion efficiencies such as steam engine, internal combustion engines
High is more.The experiment of the motor corporations such as Toyota it is concluded that, gasoline car efficiency is 16% from fuel tank to wheel, and hydrogen fuel cell is
60%, efficiency improves nearly four times.
Current existing fuel cell hydrogen pressure charging system is mainly recycled using vortex and screw as the positive displacement of representative
Based on pump.Positive displacement circulating pump realizes compressed gas pressurization by volume is changed.Overall structure is more complicated and gas works not
Continuously.This results in overall dimensions, weight larger, and operational efficiency is lower, and stable work area is relatively narrow.And since compressed gas does not connect
It is continuous to lead to that operating noise vibration is big, the service life is low.
Clearly, centrifugal-flow compressor is to be rotated by impeller to gas working medium to advantage to centrifugal-flow compressor in this respect
Acting is to increase working medium kinetic energy.It can reduce centrifugal air compressor pump volume, weight by improving revolving speed.But fuel cell system
System centrifugal air compressor has the special difficult point of following several respects.Firstly, fuel cell system needs absolutely without oil environment, if pneumatics
Machine medium contain oil will pollute proton exchange membrane cause failure can not work.The bearing of traditional oil lubrication is not available fuel
Battery system, so new oilless bearing system is fuel cell system air compressor machine research emphasis.Secondly, fuel cell current is close
Degree is proportional with oxygen partial pressure, and this requires air compressor machines to provide very high pressure head to improve the partial pressure of oxygen.Centrifugation
Formula air compressor machine outlet pressure is directly proportional to revolving speed, so fuel cell system air compressor machine generally requires revolving speed high, revolving speed is reachable
100000rpm or more.So high revolving speed puts forward higher requirements rotor-support-foundation system and blade wheel structure intensity.Finally, air compressor machine
To the use of integrated fuel cell automobile, it is necessary to accomplish that size is small, light-weight, sealed reliable, if operational process leaks
It will seriously affect the generating efficiency of system safety.
In view of problem above, a kind of bearing not only having can solve oil-free lubrication but also one kind with relatively good sealing function
High-speed centrifugal air compressor machine is extremely urgent.
Utility model content
The purpose of this utility model is to provide a kind of full-shield formula high speed centrifugation air compressor machines, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions: a kind of full-shield formula high speed centrifugation air compressor machine,
Including circulating pump, shield electric machine and cooling water pipe, pass through flanged joint, and flange between the circulating pump and shield electric machine one end
O-ring seal is provided between circulating pump and flange and shield electric machine, the cooling water pipe is arranged in shield electric machine shell
On, the shield electric machine other end is provided with electric connector, and electric connector is connected by electric connector mounting base and shield electric machine
It connects；
The shield electric machine includes shroud sleeve, motor shaft, rotor assembly, stator module and shell, the enclosure interior
It is provided with shroud sleeve and stator module, and shroud sleeve is arranged inside stator module, between the stator module and shell
It is provided with gap, and the cooling water pipe internal cavities are communicated with the gap, are disposed with and are pushed away inside the shroud sleeve
Power disk and rotor assembly, thrust disc is successively interted in described motor shaft one end and rotor assembly is arranged inside shroud sleeve, and institute
It states rotor assembly and is isolated with the stator module by shroud sleeve, the motor shaft end is additionally provided with radial air paillon axis
It holds and speed probe, and speed probe is connect with electric connector signal, the motor shaft other end is arranged in circulating pump
Portion, the motor shaft are stepped construction.
Preferably, the circulating pump includes pump case, impeller and shaft end nut, between the pump case open end and shield electric machine
By flanged joint, and pump case is internally provided with impeller and shaft end nut, and the wheel nose passes through shaft end nut and the electricity
Arbor is fixedly connected, and air paillon thrust combination bearing and air paillon are disposed between the impeller tip and motor shaft
Thrust bearing.
Preferably, the rotor assembly includes permanent magnet, and the housing with magnetic conduction is inserted in outside the permanent magnet, described outer
Set both ends are pushed down by axle sleeve, and are filled between axle sleeve and housing with sealant.
Preferably, the axle sleeve is forge piece of step type structure setting.
Preferably, the motor shaft is provided centrally with central backflow hole.
Preferably, the first close gap is provided between the pump case and impeller.
Preferably, the shroud sleeve is an integral structure, and it is narrow to be provided with second between the shroud sleeve and motor shaft
Small―gap suture.
Preferably, the central backflow hole is communicated with the second close gap and the first close gap.
Compared with prior art, the utility model has the beneficial effects that
(1) the utility model structure is simple, using safe and convenient, by using full frame shield structure, No leakage, later maintenance
Simply, the advantages such as use cost is low；
(2) the utility model circulating pump application air-bearing technology may be implemented high revolving speed, be suitable for small in size, compression ratio
It is high to be compressed with air.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model schematic cross-sectional view.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because
This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself
Wide is inside and outside.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of full-shield formula high speed centrifugation air compressor machine, packet
Circulating pump 1, shield electric machine 2 and cooling water pipe 3 are included, is connected between 2 one end of the circulating pump 1 and shield electric machine by flange 4,
And it is provided with O-ring seal between flange 4 and circulating pump 1 and flange 4 and shield electric machine 2, it is carried out by O-ring reliable close
Envelope；The cooling water pipe 3 is arranged on 2 shell of shield electric machine, and 2 other end of shield electric machine is provided with electric connector 5, and electricity
Connector 5 is connect by electric connector mounting base 6 with shield electric machine 2；
The shield electric machine 2 includes shroud sleeve 7, motor shaft 8, rotor assembly 9, stator module 10 and shell 11, shielding
Sleeve 7 is an integral structure；The shell 11 is internally provided with shroud sleeve 7 and stator module 10, and the setting of shroud sleeve 7 exists
Inside stator module 10, gap, and 3 internal cavities of the cooling water pipe are provided between the stator module 10 and shell 11
It is communicated with the gap, by the cooling water of outer supply certain flow by electric machine casing and stator coil gap, to take away
Motor work, which gives off heat, reaches cooling effect；It is disposed with thrust disc 12 and rotor assembly 9 inside the shroud sleeve 7,
Thrust disc 12 is successively interted in described 8 one end of motor shaft and rotor assembly 9 is arranged inside shroud sleeve 7, and the rotor assembly 9
It is isolated with the stator module 10 by shroud sleeve 7；By shroud sleeve by motor stator component and gas medium completely every
From so that the channel for leaking motor cavity not, is truly realized No leakage；Rotor assembly 9 includes permanent magnet, the permanent magnet
The housing with magnetic conduction is inserted in outside, and the housing both ends are pushed down by axle sleeve, and axle sleeve is forge piece of step type structure setting；And axle sleeve and
It is filled between housing with sealant；It is that high speed rotation is that permanent magnet stress is deformed damage in order to prevent；The motor shaft 8
End is additionally provided with radial air foil bearing 13 and speed probe 14, and speed probe 14 and 5 signal of electric connector connect
It connects, 8 other end of motor shaft is arranged inside circulating pump 1, and the motor shaft 8 is stepped construction.
In the utility model, circulating pump 1 include pump case 15, impeller 16 and shaft end nut 17,15 open end of pump case with
It is connected between shield electric machine 2 by flange 4, and pump case 15 is internally provided with impeller 16 and shaft end nut 17, before the impeller 16
End is fixedly connected by shaft end nut 17 with the motor shaft 8, is set gradually between 16 end of impeller and motor shaft 8 free
Gas paillon thrust combination bearing 18 and air foil thrust bearing 19；Using air foil bearing, by bearing and motor shaft it
Between rotation be the wedge gap to be formed, the air hydrodynamic effect that air is generated when wedge gap flows supports rotor-support-foundation system.By
In air bearing, contact heating amount is not few with motor shaft, therefore ultrahigh rotating speed oil-free lubrication simultaneously may be implemented.Air bearing master
It is mounted on multi-diameter shaft front and back end.A transverse bearing is arranged far from impeller side in rear end, and front side arranges one close to impeller side
The radial air paillon thrust combination bearing and an air foil thrust bearing being composed with thrust.By air paillon thrust
It is to reduce influence of the bounce of rotor-support-foundation system to impeller as far as possible that bearing, which is disposed adjacent to impeller side,.
In addition, motor shaft 8 is provided centrally with central backflow hole in the utility model；It is arranged between pump case 15 and impeller 16
There is the first close gap；Be provided with the second close gap between the shroud sleeve 7 and motor shaft 8, and the second close gap with
First close gap and the central backflow hole communicate；It is to be generally 0.5% by quoting one using this design structure
~2% air by impeller enter behind motor cavity then pass through motor shaft centre bore be back to impeller eye formed follow
Ring can take away magnet steel fever inside motor by recycling in working medium, while provide working media also while band to air bearing
The heat for walking air and the generation of axis high-speed friction, guarantees bearing safe and stable operation.
In conclusion compared with prior art, the utility model air compressor machine mainly solves the problems, such as several respects:
Firstly, being considered as high speed centrifugation air compressor package realizes larger pressure ratio, pass through contactless air-bearing skill
Art solves the problems, such as that conventional centrifugal pump can not high speed rotation.Such high speed rotation make high speed centrifugation air compressor machine have it is small in size,
Light-weight, flowing is continuous and the advantages such as high reliability.
Secondly, cancel traditional movable sealing structure by using full-shield formula structure, thoroughly solve because follow at a high speed turn caused by sky
Press leakage problem.Full frame shield structure can accomplish that hydrogen is completely isolated with outside, theoretically accomplishes zero using metallic shield set
Leakage.
Finally, completing motor radiating by the way of inner-outer circulation combination heat dissipation to improve running reliability of motor.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. a kind of full-shield formula high speed centrifugation air compressor machine, including circulating pump (1), shield electric machine (2) and cooling water pipe (3), special
Sign is: being connect between the circulating pump (1) and shield electric machine (2) one end by flange (4), and flange (4) and circulating pump (1)
And O-ring seal is provided between flange (4) and shield electric machine (2), the cooling water pipe (3) is arranged in shield electric machine (2)
On shell, shield electric machine (2) other end is provided with electric connector (5), and electric connector (5) passes through electric connector mounting base
(6) it is connect with shield electric machine (2)；
The shield electric machine (2) includes shroud sleeve (7), motor shaft (8), rotor assembly (9), stator module (10) and shell
(11), the shell (11) is internally provided with shroud sleeve (7) and stator module (10), and shroud sleeve (7) is arranged in stator
Component (10) is internal, gap is provided between the stator module (10) and shell (11), and the cooling water pipe (3) is internal empty
Chamber is communicated with the gap, is disposed with thrust disc (12) and rotor assembly (9), the electricity inside the shroud sleeve (7)
Thrust disc (12) are successively interted in arbor (8) one end and rotor assembly (9) setting is internal in shroud sleeve (7), and the rotor set
Part (9) is isolated with the stator module (10) by shroud sleeve (7), and motor shaft (8) end is additionally provided with radial air
Foil bearing (13) and speed probe (14), and speed probe (14) is connect with electric connector (5) signal, the motor shaft
(8) other end setting is internal in circulating pump (1), and the motor shaft (8) is stepped construction.
2. a kind of full-shield formula high speed centrifugation air compressor machine according to claim 1, it is characterised in that: the circulating pump (1)
Including pump case (15), impeller (16) and shaft end nut (17), pass through method between pump case (15) open end and shield electric machine (2)
Blue (4) connection, and pump case (15) is internally provided with impeller (16) and shaft end nut (17), impeller (16) front end passes through shaft end
Nut (17) is fixedly connected with the motor shaft (8), is disposed with air between impeller (16) end and motor shaft (8)
Paillon thrust combination bearing (18) and air foil thrust bearing (19).
3. a kind of full-shield formula high speed centrifugation air compressor machine according to claim 1, it is characterised in that: the rotor assembly
(9) include permanent magnet, the housing with magnetic conduction is inserted in outside the permanent magnet, the housing both ends are pushed down by axle sleeve, and axis
It is filled between set and housing with sealant.
4. a kind of full-shield formula high speed centrifugation air compressor machine according to claim 3, it is characterised in that: the axle sleeve is ladder
Type structure setting.
5. a kind of full-shield formula high speed centrifugation air compressor machine according to claim 1, it is characterised in that: the motor shaft (8)
It is provided centrally with central backflow hole.
6. a kind of full-shield formula high speed centrifugation air compressor machine according to claim 2, it is characterised in that: the pump case (15) with
Impeller is provided with the first close gap between (16).
7. a kind of full-shield formula high speed centrifugation air compressor machine according to claim 1, it is characterised in that: the shroud sleeve
(7) it is an integral structure, is provided with the second close gap between the shroud sleeve (7) and motor shaft (8).
8. a kind of full-shield formula high speed centrifugation air compressor machine according to claim 5, it is characterised in that: the central backflow hole
It is communicated with the second close gap and the first close gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820742550.4U CN208294790U (en) | 2018-05-18 | 2018-05-18 | A kind of full-shield formula high speed centrifugation air compressor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820742550.4U CN208294790U (en) | 2018-05-18 | 2018-05-18 | A kind of full-shield formula high speed centrifugation air compressor machine |
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| Publication Number | Publication Date |
|---|---|
| CN208294790U true CN208294790U (en) | 2018-12-28 |
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ID=64728091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820742550.4U Active CN208294790U (en) | 2018-05-18 | 2018-05-18 | A kind of full-shield formula high speed centrifugation air compressor machine |
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| CN (1) | CN208294790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814935A (en) * | 2021-02-05 | 2021-05-18 | 陈亮 | High-speed air suspension compressor for fuel cell, fuel cell system and vehicle |
| CN114593085A (en) * | 2022-02-25 | 2022-06-07 | 北京航天动力研究所 | Long-life temperature control pump system adopting space suspension bearing |
-
2018
- 2018-05-18 CN CN201820742550.4U patent/CN208294790U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814935A (en) * | 2021-02-05 | 2021-05-18 | 陈亮 | High-speed air suspension compressor for fuel cell, fuel cell system and vehicle |
| CN114593085A (en) * | 2022-02-25 | 2022-06-07 | 北京航天动力研究所 | Long-life temperature control pump system adopting space suspension bearing |
| CN114593085B (en) * | 2022-02-25 | 2024-03-15 | 北京航天动力研究所 | Long-life temperature control pump system adopting space suspension bearing |
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