CN106246606A - Compressor and air-conditioner - Google Patents
Compressor and air-conditioner Download PDFInfo
- Publication number
- CN106246606A CN106246606A CN201610831465.0A CN201610831465A CN106246606A CN 106246606 A CN106246606 A CN 106246606A CN 201610831465 A CN201610831465 A CN 201610831465A CN 106246606 A CN106246606 A CN 106246606A
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- China
- Prior art keywords
- flow channel
- coolant flow
- compressor
- channel unit
- electromagnetic bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F04D29/5846—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling by injection
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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
- F04D29/058—Bearings magnetic; electromagnetic
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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
- F04D29/5806—Cooling the drive system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/02—Compressor arrangements of motor-compressor units
- F25B31/026—Compressor arrangements of motor-compressor units with compressor of rotary type
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Motor Or Generator Cooling System (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of compressor and air-conditioner, this compressor includes: rotating shaft；Support the first electromagnetic bearing assembly and the second electromagnetic bearing assembly at described rotating shaft two ends respectively；For to described first electromagnetic bearing assembly and the electromagnetic bearing coolant flow channel of described second electromagnetic bearing assembly cooling；Described electromagnetic bearing coolant flow channel includes the first entrance channel and the first coolant flow channel unit branched out by described first entrance channel and the second coolant flow channel unit, described first coolant flow channel unit extends at described first electromagnetic bearing assembly, and described second coolant flow channel unit extends at described second electromagnetic bearing assembly.Two groups of electromagnetic bearings can be cooled down by the compressor that the present invention provides by a feed liquor runner, and structure is simpler, and external pipeline is few, efficiency of assembling height and good looking appearance, further, since pipe interface is few, decreases leak source, improves security reliability.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, relate more specifically to a kind of compressor and there is its air-conditioner.
Background technology
When magnetic suspension centrifugal compressor is properly functioning, electromagnetic bearing, motor the most all can generate heat, wherein, and electricity
Machine is main heater element, and for electromagnetic bearing is relative to motor, caloric value is little, if but these heats take away not in time, electricity
Magnetic bearing, the coil temperature of motor will constantly raise, and magnetic signature will change, and compressor performance can be greatly reduced, and works as line
When circle temperature is higher than the ultimate value of coil insulation, coil insulation will be caused to damage, compressor cannot be properly functioning.In order to ensure pressure
Contracting machine is properly functioning, needs to cool down motor and electromagnetic bearing.
The current type of cooling for carrying out independent cooling respectively to motor and each electromagnetic bearing, and i.e. front electromagnetic bearing is cold
But runner, motor cooling passageway and rear electromagnetic bearing coolant flow channel carry out independent feed liquor respectively, cause the outside cooling of centrifugal chiller
Pipeline is more, aesthetic property is poor, efficiency of assembling is low, relatively costly.Further, since pipe interface is more, cause unit leak source many,
Safety and reliability are poor.
Summary of the invention
In view of this, the present invention provides the compressor that a kind of external pipeline is few, good looking appearance, efficiency of assembling high, leak source is few
And air-conditioner.
For reaching above-mentioned purpose, on the one hand, the present invention adopts the following technical scheme that
A kind of compressor, including:
Rotating shaft；
Support the first electromagnetic bearing assembly and the second electromagnetic bearing assembly at described rotating shaft two ends respectively；
For to described first electromagnetic bearing assembly and the electromagnetic bearing cooling stream of described second electromagnetic bearing assembly cooling
Road；
Wherein, described electromagnetic bearing coolant flow channel includes the first entrance channel and is branched out by described first entrance channel
The first coolant flow channel unit and the second coolant flow channel unit, described first coolant flow channel unit extends to described first electromagnetic axis
At bearing assembly, described second coolant flow channel unit extends at described second electromagnetic bearing assembly.
Preferably, the housing sidewall of described compressor being provided with the first entrance, described first entrance prolongs radially inward
Stretching described first entrance channel of formation, described first entrance channel extends to the two ends of housing in the sidewall of described housing respectively
Form described first coolant flow channel unit and the part-structure of described second coolant flow channel unit.
Preferably, described compressor also includes that motor, described motor include the rotor being connected with described rotating shaft and be placed on
The stator of described rotor outer periphery；
The outlet of described first coolant flow channel unit towards described motor, and/or, going out of described second coolant flow channel unit
Mouth is towards described motor.
Preferably, described first electromagnetic bearing assembly includes the first electromagnetism journal bearing and is arranged at described first electromagnetism
The first interference preventer between journal bearing and described motor, described first interference preventer is provided with described first cooling
The outlet of flow passage unit.
Preferably, described first electromagnetic bearing assembly also includes that the first dividing plate, described first electromagnetism journal bearing are arranged at
Between described first dividing plate and described first interference preventer, described first coolant flow channel unit include being arranged at described first every
The first bulkhead through-hole on plate.
Preferably, described first dividing plate is provided with multiple described first bulkhead through-hole, multiple described first bulkhead through-holes
All corresponding with the coil position of described first electromagnetism journal bearing.
Preferably, described second electromagnetic bearing assembly includes the second electromagnetism journal bearing and is arranged at described second electromagnetism
The second interference preventer between journal bearing and described motor, described second interference preventer is provided with described second cooling
The outlet of flow passage unit.
Preferably, described second electromagnetic bearing assembly also includes that second partition, described second electromagnetism journal bearing are arranged at
Between described second partition and described second interference preventer, described second coolant flow channel unit include being arranged at described second every
Second partition through hole on plate.
Preferably, described second electromagnetic bearing assembly also includes the 3rd dividing plate and magnetic thrust bearing, described electromagnetic push
Bearing is between described second partition and described 3rd dividing plate, and described second coolant flow channel unit includes being arranged at the described 3rd
The 3rd bulkhead through-hole on dividing plate.
Preferably, described compressor also includes the motor cooling passageway for cooling down the motor of described compressor.
Preferably, described motor cooling passageway includes the second entrance channel, and described second entrance channel is from described compressor
The outer peripheral face of housing extends in described motor.
Preferably, described motor cooling passageway also includes the 3rd coolant flow channel between described stator and described housing
Unit, described 3rd coolant flow channel unit connects with described second entrance channel.
Preferably, the outer peripheral face of described stator abuts with the inner peripheral surface of described housing, described 3rd coolant flow channel unit bag
Include the spiral groove being opened on described housing inner peripheral surface.
Preferably, described motor cooling passageway also includes the 4th coolant flow channel between described stator and described rotor
Unit, described 4th coolant flow channel unit connects with described 3rd coolant flow channel unit.
Preferably, described compressor also includes outlet flow, described electromagnetic bearing coolant flow channel and described motor cooling stream
Fluid in road is flowed out by described outlet flow.
On the other hand, the present invention adopts the following technical scheme that
A kind of air-conditioner, including compressor as above.
Preferably, the first entrance channel of described compressor and the second entrance channel and the condenser of described air-conditioner is cold
Matchmaker exports connection, and described outlet flow is connected with the vaporizer of described air-conditioner or the refrigerant inlet of economizer；Or,
The refrigerant exit of the economizer of the first entrance channel of described compressor and the second entrance channel and described air-conditioner
Connecting, described outlet flow is connected with the refrigerant inlet of the vaporizer of described air-conditioner.
Two groups of electromagnetic bearings can be cooled down by the compressor that the present invention provides by a feed liquor runner, and structure is simpler
Single, external pipeline is few, efficiency of assembling height and good looking appearance, further, since pipe interface is few, decreases leak source, improves safety
Reliability.
The air-conditioner that the present invention provides, owing to using above-mentioned compressor, runs more safe and reliable.
Accompanying drawing explanation
By description to the embodiment of the present invention referring to the drawings, above-mentioned and other purpose of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 illustrates the schematic diagram of the electromagnetic bearing coolant flow channel of the compressor that the specific embodiment of the invention provides；
Fig. 2 illustrates the schematic diagram of the motor cooling passageway of the compressor that the specific embodiment of the invention provides；
Fig. 3 illustrates the structural representation of the first dividing plate that the specific embodiment of the invention provides.
In figure, 1, housing；11, the first entrance；12, the second entrance；13, outlet；21, rotor；22, stator；3, rotating shaft；
41, the first entrance channel；42, the first coolant flow channel unit；43, the second coolant flow channel unit；44, the second entrance channel；45,
Three coolant flow channel unit；46, the 4th coolant flow channel unit；47, outlet flow；51, the first electromagnetism journal bearing；52, first prevents
Countermeasure set；53, the first dividing plate；531, the first bulkhead through-hole；61, the second electromagnetism journal bearing；62, the second interference preventer；
63, second partition；631, second partition through hole；641, front magnetic thrust bearing；642, rear magnetic thrust bearing；643, thrust disc；65、
3rd dividing plate；651, the 3rd bulkhead through-hole.
Detailed description of the invention
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
During the details of the present invention is described by literary composition, detailed describe some specific detail sections.Do not have for a person skilled in the art
The description of these detail sections can also understand the present invention completely.In order to avoid obscuring the essence of the present invention, known method, mistake
The narration the most in detail of journey, flow process, element.
Additionally, it should be understood by one skilled in the art that accompanying drawing is provided to descriptive purpose provided herein, and
Accompanying drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with " including ", " comprising " in claims etc.
Word should be construed to the implication that comprises rather than exclusive or exhaustive implication；It is to say, be containing of " including but not limited to "
Justice.
In describing the invention, it is to be understood that term " first ", " second " etc. are not only used for describing purpose, and not
It is understood that as instruction or hint relative importance.Additionally, in describing the invention, except as otherwise noted, the implication of " multiple "
It is two or more.
The invention provides a kind of compressor, as depicted in figs. 1 and 2, compressor includes housing 1 and is positioned at housing 1
Motor, rotating shaft 3 and support the first electromagnetic bearing assembly at rotating shaft 3 two ends and the second electromagnetic bearing assembly respectively.In order to right
Electromagnetic bearing in first electromagnetic bearing assembly and the second electromagnetic bearing assembly cools down, and compressor is provided with electromagnetic axis
Hold coolant flow channel, can the coolant in condenser or economizer be led in electromagnetic bearing coolant flow channel, so that electromagnetic bearing is entered
Row cooling, flows through electromagnetic bearing and the coolant for electromagnetic bearing cooling flows back in air conditioning unit blood circulation.Coolant is constantly
Update, it is ensured that for being maintained at relatively low level for the refrigerant temperature of electromagnetic bearing cooling, improve cooling-down effect.It addition, from
Condenser or economizer introduce coolant, and coolant declines suddenly due to pressure after entering compressor inside and to be evaporated to low pressure, low temperature
Gas, owing to gas autologous density is little, naturally rises, saves the motive force of additional flow.
Wherein, housing 1 can be segmentation structure as shown in Figures 1 and 2, i.e. motor, the first electromagnetic bearing assembly
And the second electromagnetic bearing assembly respectively corresponding piece housing, it is also possible to for monolithic construction.
Electromagnetic bearing coolant flow channel include the first entrance channel 41 and by the first entrance channel 41 branch out first cold
But flow passage unit 42 and the second coolant flow channel unit 43, wherein, the first coolant flow channel unit 42 extends to the first electromagnetic bearing group
At part, the second coolant flow channel unit 43 extends at the second electromagnetic bearing assembly, thus, by the first entrance channel 41 enter cold
Matchmaker can be divided into two-way, road the first coolant flow channel unit 42 to cool down the coil in the first electromagnetic bearing assembly, another
Coil in second electromagnetic bearing assembly is cooled down by road the second coolant flow channel unit 43, and a feed liquor runner can be to two groups
Electromagnetic bearing cools down, and structure is simpler, and external pipeline is few, and efficiency of assembling height and good looking appearance, further, since pipeline connects
Mouth is few, decreases leak source, improves security reliability.
Concrete, the sidewall of housing 1 is provided with the first entrance 11, the first radially inwardly extending formation of entrance 11 first
Entrance channel 41, is i.e. extended radially inwardly by the first entrance 11 and forms blind hole, and this blind hole is the first entrance channel 41.First enters
Mouth runner 41 extends (i.e. the axis direction along housing extends) in the sidewall of housing 1 respectively and forms first to the two ends of housing 1
Coolant flow channel unit 42 and the part-structure of the second coolant flow channel unit 43, " in the sidewall of housing 1 " described herein does not refers to
The inner side of sidewall but in the internal structure of sidewall.First coolant flow channel unit 42 and the second coolant flow channel unit 43 are at sidewall
It can also be a plurality of for can being the most all one.The first coolant flow channel unit 42 part in housing 1 is defined as the first branched hole,
The second coolant flow channel unit 43 part in housing 1 is defined as the second branched hole.
It is further preferred that the outlet of the first coolant flow channel unit 42 is towards motor, going out of the second coolant flow channel unit 43
Mouth also towards motor, convenient converge with the coolant in motor after together with discharge compressor.
In a further embodiment, the first electromagnetic bearing assembly includes the first electromagnetism journal bearing 51 and is arranged at
The first interference preventer 52 between one electromagnetism journal bearing 51 and motor, is provided with first cold on the first interference preventer 52
But the outlet of flow passage unit 42.The concrete set-up mode of this outlet does not limits, such as, can arrange on the first interference preventer 52
The through hole of 3 periphery arrangements around the shaft, more as shown in FIG., the middle part of the first interference preventer 52 arranges through hole, rotating shaft 3 is worn
Being located in through hole, the diameter of this through hole is more than the diameter of rotating shaft 3, and coolant can flow out between through hole and rotating shaft 3.Preferably,
The outlet of one coolant flow channel unit 42 is corresponding with the interstitial site between motor stator 22 with rotor 21 so that the first coolant flow channel
The coolant that unit 42 flows out can enter the gap between stator 22 and rotor 21, further cools down the coil of motor.
In a further embodiment, the first electromagnetic bearing assembly also includes the first dividing plate 53, the first electromagnetism journal bearing
51 are arranged between the first dividing plate 53 and the first interference preventer 52, and the first coolant flow channel unit 42 includes being arranged at the first dividing plate
The first bulkhead through-hole 531 on 53, thus, the first entrance channel 41 being divided into the coolant in the first branched hole can be through the first dividing plate
Through hole 531 enters the coil of the first electromagnetism journal bearing 51, reduces its temperature, and after through the through hole stream of the first interference preventer 52
Enter the gap between the rotor 21 of motor and stator 22.First dividing plate 53 can be arranged in integrative-structure with housing 1, it is also possible to for
Split type structure is installed in housing 1.
It is further preferred that be provided with multiple first bulkhead through-hole 531, multiple first bulkhead through-holes on the first dividing plate 53
531 is uniform along the circumference of rotating shaft 3, and all corresponding with the coil position of the first electromagnetism journal bearing 51 such that it is able to more added with
Effect ground reduces coil temperature, improves the job stability of the first electromagnetism journal bearing 51.The cross sectional shape of the first bulkhead through-hole 531
Do not limit, can be circle, ellipse, polygon etc., it is preferable that for convenience of processing, the first bulkhead through-hole 531 is set to cylinder
Hole.Quantity and the size of the first bulkhead through-hole 531 determine with the through flow velocity of gas, for ensureing heat transfer effect, gas through-flow
Speed is generally less than 15m/s, meanwhile, in order to ensure the uniformity of coil temperature, as it is shown on figure 3, in the first bulkhead through-hole 531
Distance L between heart line is unsuitable excessive, preferably no greater than 35mm.
In a further embodiment, the second electromagnetic bearing assembly includes the second electromagnetism journal bearing 61 and is arranged at
The second interference preventer 62 between two electromagnetism journal bearings 61 and motor, the second interference preventer 62 is provided with the second cooling
The outlet of flow passage unit 43.The concrete set-up mode of this outlet does not limits, such as can arrange on the second interference preventer 62 around
The through hole of rotating shaft 3 periphery arrangement, more as shown in FIG., the middle part of the second interference preventer 62 arranges through hole, rotating shaft 3 wears
In through hole, the diameter of this through hole is more than the diameter of rotating shaft 3, and coolant can flow out between through hole and rotating shaft 3.Preferably, second
The outlet of coolant flow channel unit 43 is corresponding with the position of stator 22 rear end coil so that it is cold that the second coolant flow channel unit 43 flows out
The coil of stator 22 rear end can be cooled down by matchmaker further.
In a further embodiment, the second electromagnetic bearing assembly also includes second partition 63, the second electromagnetism journal bearing
61 are arranged between second partition 63 and the second interference preventer 62, and the second coolant flow channel unit 43 includes being arranged at second partition
Second partition through hole 631 on 63.Same, second partition through hole 631 preferably with the coil position of the second electromagnetism journal bearing 61
Put correspondence.The cross sectional shape of second partition through hole 631 does not limits, and can be circle, ellipse, polygon etc., it is preferable that for convenience
Processing, second partition through hole 631 is set to cylindrical hole.The quantity of second partition through hole 631 and size are with the through-flow speed of gas
Degree determines, for ensureing heat transfer effect, the through flow velocity of gas is generally less than 15m/s, meanwhile, in order to ensure the uniform of coil temperature
Property, the distance between the centrage of second partition through hole 631 is unsuitable excessive, preferably no greater than 35mm.Second partition 63 can be with
Housing 1 is arranged in integrative-structure, it is also possible to be installed in housing for Split type structure.
Further, the second electromagnetic bearing assembly also includes the 3rd dividing plate 65 and magnetic thrust bearing, magnetic thrust bearing
Between second partition 63 and the 3rd dividing plate 65, the second coolant flow channel unit 43 includes be arranged on the 3rd dividing plate 65 the 3rd
Bulkhead through-hole 651.Magnetic thrust bearing includes the front magnetic thrust bearing 641 near the setting of described second partition 63, near described
Rear magnetic thrust bearing 642 that 3rd dividing plate 651 is arranged and be arranged at front magnetic thrust bearing 641 and rear magnetic thrust bearing 642 it
Between thrust disc 643.3rd dividing plate 651 can be arranged in integrative-structure with housing 1, it is also possible to is installed on housing for Split type structure
In 1.
So, the first entrance channel 41 after the coolant being divided in the second branched hole enters compressor afterbody, due to pressure
Declining, be evaporated to the cold media gas of low pressure, low temperature, this portion gas flows through magnetic thrust bearing through the 3rd bulkhead through-hole 651
Coil, take away the heat of magnetic thrust bearing coil, be then passed through second partition through hole 631 and enter the second electromagnetism journal bearing
The coil of 61, reduces its temperature, and after enter motor back cavity further to motor stator through the through hole of the second interference preventer 62
The coil of 22 rear ends cools down.
Further, the motor cooling passageway for motor is cooled down it is additionally provided with in compressor.Concrete, motor cools down
Runner includes that the second entrance channel 44, the second entrance channel 44 extend in motor from the outer peripheral face of compressor housing 1, i.e. shell
Being provided with the second entrance 12 on the sidewall of body 1, the second entrance 12 radially inwardly extending formation the second entrance channel 44, second enters
Mouth runner 44 penetrates the sidewall of housing 1.Wherein, the first entrance 11 and the second entrance 12 stagger setting so that the first entrance channel
41, non-interference between first coolant flow channel unit the 42, second coolant flow channel unit 43 and the second entrance channel 44.
Motor cooling passageway also includes the 3rd coolant flow channel unit 45 between stator 22 and housing 1, the 3rd cooling
Flow passage unit 45 connects with the second entrance channel 44, thus, the coolant in the second entrance channel 44 can enter the 3rd coolant flow channel
Unit 45, cools down the outer peripheral face of stator 22.The concrete structure of the 3rd coolant flow channel unit 45 does not limits, it is preferable that stator
The outer peripheral face of 22 abuts with the inner peripheral surface of housing 1, and the 3rd coolant flow channel unit 45 includes the spiral being opened on housing 1 inner peripheral surface
Connected in star.It is further preferred that the second entrance channel 44 is positioned at the bottom of spiral groove rearmost end.
Further, motor cooling passageway also includes the 4th coolant flow channel unit between stator 22 and rotor 21
46, i.e. the gap between stator 22 and rotor 21 forms the 4th coolant flow channel unit 46, the 4th coolant flow channel unit 46 and the 3rd
Coolant flow channel unit 45 connects, thus, the coolant in the 3rd coolant flow channel unit 45 can enter in the 4th coolant flow channel unit 46,
Stator 22 and rotor 21 are cooled down.
So, introduce the coolant of the second entrance channel 44 from condenser or economizer and initially enter the 3rd coolant flow channel unit
45, by stator 22 being cooled down before backward, after front portion is flowed out, enter the 4th coolant flow channel unit 46, by after forward direction to stator
22 and rotor 21 cool down, and by stator 22 and rotor 21 rear portion flow out.
Further, compressor is additionally provided with outlet flow 47, in electromagnetic bearing coolant flow channel and motor cooling passageway
Coolant flowed out by outlet flow 47.Being provided with outlet 13 on the sidewall of housing 1, outlet 13 is radially inwardly extending to be formed out
Mouth runner 47, outlet flow 47 penetrates the sidewall of housing 1, and outlet flow 47 is preferably disposed on the rear portion of housing 1.So, first
Coolant in coolant flow channel unit 42 and the 3rd coolant flow channel unit 45 is all after the 4th coolant flow channel unit 46 enters motor
Chamber is also flowed out by outlet flow 47, and the coolant in the second coolant flow channel unit 43 enters motor back cavity and flowed by outlet flow 47
Go out.So, housing 1 is only provided with two entrances and an outlet 12, greatly reduces interface quantity, efficiency of assembling high and
Good looking appearance, further, since pipe interface is few, decreases leak source, improves security reliability.
Present invention also offers a kind of air-conditioner, include compressor as above, run more safe and reliable.Compression
First entrance channel 41 of machine and the second entrance channel 44 can be connected with the refrigerant exit of the condenser of air-conditioner or economizer, go out
Mouth runner 47 can be connected with the refrigerant inlet of the vaporizer of air-conditioner or economizer.Preferably, when the first entrance channel 41 and
When two entrance channels 44 are connected with condenser, outlet flow 47 can be connected with the refrigerant inlet of economizer or vaporizer, it is contemplated that
Vaporizer can reduce the temperature of coolant further, is the most preferably connected with the refrigerant inlet of vaporizer；When the first entrance channel 41
When being connected with economizer with the second entrance channel 44, outlet flow 47 is connected with the refrigerant inlet of vaporizer.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For, the present invention can have various change and change.All made within spirit and principles of the present invention any amendment, equivalent
Replacement, improvement etc., should be included within the scope of the present invention.
Claims (17)
1. a compressor, it is characterised in that including:
Rotating shaft (3)；
Support the first electromagnetic bearing assembly and the second electromagnetic bearing assembly at described rotating shaft (3) two ends respectively；
For to described first electromagnetic bearing assembly and the electromagnetic bearing coolant flow channel of described second electromagnetic bearing assembly cooling；
Wherein, described electromagnetic bearing coolant flow channel includes the first entrance channel (41) and by described first entrance channel (41) point
First coolant flow channel unit (42) of expenditure and the second coolant flow channel unit (43), described first coolant flow channel unit (42) extends
To described first electromagnetic bearing assembly, described second coolant flow channel unit (43) extends to described second electromagnetic bearing assembly
Place.
Compressor the most according to claim 1, it is characterised in that be provided with on housing (1) sidewall of described compressor
One entrance (11), described first entrance channel of the radially inwardly extending formation of described first entrance (11) (41), described first enters
Mouth runner (41) extends to the two ends of housing (1) respectively in the sidewall of described housing (1) and forms described first coolant flow channel list
Unit (42) and the part-structure of described second coolant flow channel unit (43).
Compressor the most according to claim 2, it is characterised in that described compressor also includes that motor, described motor include
The rotor (21) being connected with described rotating shaft (3) and the stator (22) being placed on described rotor (21) periphery；
The outlet of described first coolant flow channel unit (42) towards described motor, and/or, described second coolant flow channel unit (43)
Outlet towards described motor.
Compressor the most according to claim 3, it is characterised in that described first electromagnetic bearing assembly includes the first electromagnetism footpath
To bearing (51) and be arranged at the first interference preventer between described first electromagnetism journal bearing (51) and described motor
(52), described first interference preventer (52) is provided with the outlet of described first coolant flow channel unit (42).
Compressor the most according to claim 4, it is characterised in that described first electromagnetic bearing assembly also includes the first dividing plate
(53), described first electromagnetism journal bearing (51) be arranged at described first dividing plate (53) and described first interference preventer (52) it
Between, described first coolant flow channel unit includes the first bulkhead through-hole (531) being arranged on described first dividing plate (53).
Compressor the most according to claim 5, it is characterised in that be provided with multiple described on described first dividing plate (53)
One bulkhead through-hole (531), multiple described first bulkhead through-holes (531) all with the coil position of described first electromagnetism journal bearing (51)
Put correspondence.
Compressor the most according to claim 3, it is characterised in that described second electromagnetic bearing assembly includes the second electromagnetism footpath
To bearing (61) and be arranged at the second interference preventer between described second electromagnetism journal bearing (61) and described motor
(62), described second interference preventer (62) is provided with the outlet of described second coolant flow channel unit (43).
Compressor the most according to claim 7, it is characterised in that described second electromagnetic bearing assembly also includes second partition
(63), described second electromagnetism journal bearing (61) be arranged at described second partition (63) and described second interference preventer (62) it
Between, described second coolant flow channel unit includes the second partition through hole (631) being arranged on described second partition (63).
Compressor the most according to claim 8, it is characterised in that described second electromagnetic bearing assembly also includes the 3rd dividing plate
(65) and magnetic thrust bearing, described magnetic thrust bearing be positioned at described second partition (63) and described 3rd dividing plate (65) it
Between, described second coolant flow channel unit includes the 3rd bulkhead through-hole (651) being arranged on described 3rd dividing plate (65).
10. according to the compressor described in any one of claim 1 to 9, it is characterised in that described compressor also includes for institute
State the motor cooling passageway of the motor cooling of compressor.
11. compressors according to claim 10, it is characterised in that described motor cooling passageway includes the second entrance channel
(44), described second entrance channel (44) extends in described motor from the outer peripheral face of described compressor housing (1).
12. compressors according to claim 11, it is characterised in that described motor cooling passageway also includes being positioned at described electricity
The 3rd coolant flow channel unit (45) between stator (22) and the described housing (1) of machine, described 3rd coolant flow channel unit (45)
Connect with described second entrance channel (44).
13. compressors according to claim 12, it is characterised in that the outer peripheral face of described stator (22) and described housing
(1) inner peripheral surface abuts, and described 3rd coolant flow channel unit (45) is that the spiral type being opened on described housing (1) inner peripheral surface is recessed
Groove.
14. compressors according to claim 12, it is characterised in that described motor cooling passageway also includes being positioned at described electricity
The 4th coolant flow channel unit (46) between stator (22) and the rotor (21) of machine, described 4th coolant flow channel unit (46) and institute
State the 3rd coolant flow channel unit (45) connection.
15. compressors according to claim 10, it is characterised in that described compressor also includes outlet flow (47), institute
The fluid stated in electromagnetic bearing coolant flow channel and described motor cooling passageway is flowed out by described outlet flow (47).
16. 1 kinds of air-conditioners, it is characterised in that include the compressor as described in any one of claim 1 to 15.
17. air-conditioners according to claim 16, it is characterised in that first entrance channel (41) of described compressor and
Two entrance channels (44) are connected with the refrigerant exit of the condenser of described air-conditioner, described outlet flow (47) and described air-conditioner
Vaporizer or economizer refrigerant inlet connect；Or,
The coolant of the economizer of first entrance channel (41) of described compressor and the second entrance channel (44) and described air-conditioner
Outlet connects, and described outlet flow (47) is connected with the refrigerant inlet of the vaporizer of described air-conditioner.
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| CN107394947A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of refrigeration compressor cooling structure |
| CN107733163A (en) * | 2017-11-06 | 2018-02-23 | 珠海格力电器股份有限公司 | A kind of motor, centrifugal compressor and air-conditioner set |
| CN107809154A (en) * | 2017-12-04 | 2018-03-16 | 南京磁谷科技有限公司 | A kind of compressor cooling structure |
| CN111486112A (en) * | 2019-01-29 | 2020-08-04 | 青岛海尔智能技术研发有限公司 | Magnetic suspension centrifugal compressor and air conditioning system |
| CN111490635A (en) * | 2019-01-29 | 2020-08-04 | 青岛海尔智能技术研发有限公司 | Motor cooling system of centrifugal refrigeration compressor and centrifugal refrigeration compressor |
| CN114183468A (en) * | 2021-12-08 | 2022-03-15 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
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Application publication date: 20161221 |