CN106357023A - Special no-bearing direct-connection permanent-magnet synchronous motor for compressor using graphene winding - Google Patents
Special no-bearing direct-connection permanent-magnet synchronous motor for compressor using graphene winding Download PDFInfo
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- CN106357023A CN106357023A CN201610954542.1A CN201610954542A CN106357023A CN 106357023 A CN106357023 A CN 106357023A CN 201610954542 A CN201610954542 A CN 201610954542A CN 106357023 A CN106357023 A CN 106357023A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
- H02K1/26—Rotor cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/02—Windings characterised by the conductor material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a special no-bearing direct-connection permanent-magnet synchronous motor for a compressor using a graphene winding. The special no-bearing direct-connection permanent-magnet synchronous motor comprises a drum-shaped case, a stator coil arranged in the drum-shaped case, a permanent magnet rotor arranged in the stator coil and a cooling device arranged between the drum-shaped case and the stator coil, wherein the front end of the drum-shaped case is fixedly connected with the compressor by a flange, and the rear end of the drum-shaped case is provided with a thin-plate sealing cover in a covering manner; a no-bearing main shaft of the permanent magnet rotor is in transmission connection with a transmission shaft of the compressor; the drum-shaped case comprises a case body and a case base; the case body is welded on the case base; the stator coil comprises a graphene composite-material stator winding; and the permanent magnet rotor comprises a curved fence-row-shaped rotor punching plate. The special no-bearing direct-connection permanent-magnet synchronous motor has the advantages that since the graphene material is adopted for manufacturing the motor stator winding, the conductivity and the temperature resistance of the stator winding are greatly improved. In addition, the special no-bearing direct-connection permanent-magnet synchronous motor has the characteristics of small volume and high efficiency.
Description
Technical field
The present invention relates to a kind of novel permanent magnetic synchronous motor, special particularly to a kind of compressor of employing Graphene winding
Bearing-free direct connection permagnetic synchronous motor, belongs to machine field.
Background technology
The most of asynchronous motor using routine of compressor in Chinese market at present, the connection with compressor host head
Connect method also based on belt transmission and shaft coupling transmission.Its shortcoming is obvious: volume is big, and efficiency is low, and energy consumption is big, and fault rate is high,
Need to often safeguard.Occur in that frequency conversion permanent magnet compressor on nearly 2 years markets, to be driven using permagnetic synchronous motor, due to its volume
The series of advantages such as little, lightweight, efficiency high, power factor are high, structure is simple, reliability is high, in commercial production, the side such as civilian
Face is widely applied.Although it is with the obvious advantage with conventional asynchronous motor, the structure of magneto and commonly different
Step motor identical (having front and back bearings, front and rear cover, independent blower fan etc.), motor bearings needs periodic maintenance, and the high (electricity of fault rate
The fault of machine more than 60% is that bearing causes).Motor be unable to do without bearing supporting, with mechanical bearing supporting, rotor motion process
In there is mechanical friction problem.Mechanical friction not only increased the frictional resistance of rotor, makes bearing wear, reduces bearing life,
Produce mechanical vibration and noise, and part can be caused to generate heat, make lubricant degradation, when serious, motor gas-gap can be caused not
Uniformly, winding heating, temperature rise increases, and reduces electric efficiency, shortens motor service life.Bearing-free motor, is not to say that and is not required to
Want bearing to support, but be not required to design or using special mechanical bearing, air supporting or liquid bearing.Bearing-free motor is basis
Magnetic bearing structure and the similarity of motor stator structure, are laminated to motor the winding producing radial force in magnetic suspension bearing
Stator winding on so as to the controlled suspending power of size and torque inherently can be produced, realize rotor mechanical friction rotation.
Content of the invention
The compressor special bearing-free direct connection permagnetic synchronous motor of present invention Graphene winding discloses new scheme, adopts
The motor stator winding making of grapheme material, solves the problems, such as that existing permanent magnet synchronous electric engine efficiency has much room for improvement.
The compressor special bearing-free direct connection permagnetic synchronous motor of present invention Graphene winding includes tubular casing, is located at
Stator coil in tubular casing, the p-m rotor being located in stator coil, the cooling being located between tubular casing and stator coil
Device, the front end of tubular casing is fixedly connected by flange with compressor, and the rear end of tubular casing is covered with thin plate capping, permanent magnetism
The bearing-free main shaft of rotor is connected with the transmission shaft driven of compressor, and tubular casing includes casing ontology and casing pedestal, casing
Body is welded on casing pedestal, and stator coil includes graphene composite material stator winding, and p-m rotor includes curve fence
Row pattern rotor punching.
The present invention adopts grapheme material system with the compressor special bearing-free direct connection permagnetic synchronous motor of Graphene winding
The motor stator winding made, is greatly improved electric conductivity, the temperature tolerance of stator winding, has the characteristics that small volume, efficiency high.
Brief description
Fig. 1 is the schematic front view of this programme motor.
Fig. 2 is the left view schematic diagram of motor in Fig. 1.
Fig. 3 is the schematic diagram of rotor punching.
Fig. 4 is the close-up schematic view of rotor punching axis hole in Fig. 3.
Fig. 5 is the internal structure schematic diagram of one of chiller embodiment.
Fig. 6 is chiller a-a generalized section in Fig. 5.
Fig. 7 is the principle schematic of chiller in Fig. 5.
Fig. 8 is the internal structure schematic diagram of the two of chiller embodiment.
Fig. 9 is chiller a-a generalized section in Fig. 8.
Figure 10 is the principle schematic of chiller in Fig. 8.
Wherein, 1 is tubular casing, and 111 is thin plate capping, and 2 is stator coil, and 3 is p-m rotor, and 4 is curve fence row
Shape rotor punching, 511 is oil-feed oil catcher, and 512 is fuel-displaced oil catcher, and 513 is cooling oil curved tube, and 521 is port plate, 522
It is cooling oil runner.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Fig. 1~2, the showing of the compressor special bearing-free direct connection permagnetic synchronous motor of present invention Graphene winding
It is intended to.Included tubular casing, be located at tubular casing with the compressor of Graphene winding special bearing-free direct connection permagnetic synchronous motor
Interior stator coil, the p-m rotor being located in stator coil, the chiller being located between tubular casing and stator coil, tubular
The front end of casing is fixedly connected by flange with compressor, and the rear end of tubular casing is covered with thin plate capping, the nothing of p-m rotor
Bearing spindle is connected with the transmission shaft driven of compressor, and tubular casing includes casing ontology and casing pedestal, and casing ontology welds
On casing pedestal, stator coil includes graphene composite material stator winding, and p-m rotor includes curve fence row pattern rotor
Punching.Graphene (graphene) is the only one layer of atomic thickness being stripped out from graphite material, being made up of carbon atom
Two dimensional crystal.Graphene is material the thinnest, is also material the most tough, fracture strength more taller than best steel 200
Times, it has good elasticity again simultaneously, and stretch range can reach the 20% of own dimensions, be that current nature is the thinnest, intensity
High material.If making hammock with 1 square metre of Graphene of one piece of area, weight itself just can bear one less than 1 milligram
Only one kilogram of cat.Graphene has perfect two dimensional crystal structure, and its lattice is the hexagon being surrounded by six carbon atom,
Thickness is an atomic layer.Bonded by σ between carbon atom, combination is sp2 hydridization, and these σ keys impart Graphene pole
Its excellent mechanical property and structural rigidity.The hardness of Graphene is stronger than best iron and steel 100 times, or even diamond also to be exceeded.
In Graphene, each carbon atom has the p electronics of a non-bonding, and these p electronics can move freely in crystal, and transports
Dynamic speed is up to the 1/300 of the light velocity, this gives the good electric conductivity of Graphene.Graphene is the electrically conducting transparent material of a new generation
Material, in visible region, the transmitance of four layer graphenes is suitable with traditional ito thin film, in other wave bands, four layer graphenes saturating
Rate of crossing is significantly larger than ito thin film.Graphene is the thinnest, the hardest nano material in known world, and it is almost fully transparent
, only absorb 2.3% light, heat conductivity is up to 5300w/m k, and higher than CNT and diamond, under room temperature, its electronics moves
Shifting rate is more than 15000cm2/ v s, but higher than CNT or silicon crystal, and resistivity only about 10~6 ω cm, than copper or silver
Lower, for the material that world resistivity is minimum.Because its resistivity is extremely low, the speed of electron transfer is exceedingly fast, and therefore can be used to develop
Thinner, conductive speed electronic component of new generation or transistor faster.The scientific circles that occur in of Graphene have evoked huge ripple
Billows.It has been found that Graphene has unusual electric conductivity, the intensity beyond iron and steel decades of times and fabulous light transmission,
Its appearance is expected to cause a wheel revolution in hyundai electronicses sciemtifec and technical sphere.In Graphene, electronics can extremely efficiently migrate,
And traditional quasiconductor and conductor, such as silicon and copper are far from, Graphene show must well.Due to the collision of electronics and atom, tradition
Quasiconductor and conductor heat form release some energy, general computer chip wastes by this way within 2013
72%~81% electric energy, Graphene is then different, and its electron energy will not be depleted, and it is extraordinary excellent that this makes it be provided with
Good characteristic.
More interestingly the physical property of its that many " extreme " property.Because only that one layer of atom, electronics
Motion is limited in a plane, and Graphene also has brand-new electrical properties.Graphene is that electric conductivity is best in the world
Material, electronics movement velocity wherein has reached the 1/300 of the light velocity, considerably beyond motion speed in general conductor for the electronics
Degree.Mix centesimal Graphene in plastics, plastics just can be made to possess good electric conductivity, add millesimal graphite
Alkene, can make the heat resistanceheat resistant performance of plastics improve 30 degrees Celsius.The stator winding of existing motor is mostly by enamel covered wire coiling
Become, if penetrating into a certain proportion of Graphene in enamel covered wire will greatly improve electric conductivity and the temperature tolerance of enamel covered wire, will
The electrical loss of copper cash itself is made to be preferably minimized even without making the efficiency of motor have and significantly improve, the volume of motor is significantly
Reduce, particularly heavy-duty motor is meant a great, this will have revolutionary meaning to the energy-saving and emission-reduction consumption reduction of current country concern
Justice.Therefore, the stator winding of this programme absorbs the good characteristic of grapheme material, i.e. graphene composite material stator winding bag
Include enamel covered wire, enamel covered wire is contained within grapheme material.
The rotor of this programme is to be overrided to form by rotor punching, and in order to improve the performance of rotor, this programme employs
New rotor punching, that is, carry the punching of fence radiator structure, as shown in figure 3, specifically curve fence row pattern rotor punching
It is circular punching, in the center hole of curve fence row pattern rotor punching, be provided with " ten " font pedestal beam, the central authorities of pedestal beam
Portion is provided with axis hole, and four ends of pedestal beam are fixedly connected to form four radiating sectors, radiating with the inner ring of the ring body of circular punching
It is provided with curve fence row, it is in the curve fence that continuous wave pattern is distributed that curve fence row includes one group, circular punching in sector
In ring body, the outer ring along ring body is circumferentially with the oval line embedding groove of equidistant arrangement, the major axis of oval line embedding groove or short axle to
The center of circle by ring body for the heart end extended line.The curve fence dissipation heat structure of such scheme has taken into account lamination structure intensity and radiating
Performance, alleviates the weight of punching, improves efficiency.In order to improve the heat dispersion of rotor further, mitigate weight, protect simultaneously
Card structure is unlikely to deform, and the rotor punching of this programme is also additionally arranged louvre, and the ring body specifically between line embedding groove and inner ring sets
There are the thermal vias of the circumferentially equidistant arrangement along inner ring.The line embedding groove of this programme adopts radially arranged ellipse hole, has
Effect inhibits starting current, increases starting torque so that the raising of adjoint motor speed, rotor current and torque are simultaneously corresponding
Adjustment, after rotor enters working speed, rotor impedance is obviously reduced, and rotor has been issued to ideal in nominal operation rotating speed
Performance indications.Meanwhile, oval profile it also avoid processing, the assembly difficulty that angular structures are brought, and reduces and turns
Sub- teeth portion eddy-current loss, increases the kelvin effect of rotor, and motor torque is more smooth, reduces vibration and the noise of motor,
Make the close distribution of motor rotor teeth portion magnetic more reasonable, improve electric efficiency.Further, in order to improve structure and the property of punching
Can, this programme is circumferentially with 36 oval line embedding grooves of equidistant arrangement in the ring body of circular punching along the outer ring of ring body,
It is provided with opening groove between oval line embedding groove and outer ring.Opening groove can make the stress at notch be released, and will not make punching
Piece is deformed, thus solving the problems, such as amount of unbalance and some the additional losses producing due to rotor punching deformation,
Certain thermolysis is played to the cast copper in line embedding groove or cast aluminium, and improves rigging error tolerance.Likewise it is preferred that 36
The individual line embedding groove being circumferentially equally spaced effectively improves the distribution situation of cast copper or cast aluminium, makes motor operation more stable, effect
Rate is higher.In the above-mentioned cast copper referring to or cast aluminium can also graphene-doped material improving the performance of rotor.
The rotor punching of this programme also has other adaptation contents, specifically, in order that the punching laminating is in week
Alignment upwards, is provided with punching positioning slotted hole, it is fixed that adjacent rotor punching passes through punching on four beam arms of pedestal beam
Bit length circular hole fixes circumferential relative position, as shown in figure 4, for the assembly performance improving armature spindle and punching, reducing workpiece
Difficulty of processing, this programme is provided with 1~4 key teeth on inner ring, and the tall and big opposite side tooth in key teeth of side tooth of key teeth is high, key teeth
Increment curved, armature spindle only needs to process the keyway of corresponding fit shapes vertically, reduces difficulty of processing.With this
Meanwhile, the arc-shaped tooth cooperation of such scheme also makes no matter axle rotating, and above-mentioned cooperation all can realize certain damping action,
Lower the impulsive force of suddenly change rotation direction, reduce abrasion, play the effect of centering simultaneously in assembling, make cooperation more smart
Really, and arcuate structure can also avoid abrasion that angular structures bring and the noise problem producing of sliding.
In order to improve the heat dispersion of motor, this programme discloses a kind of cooling side combining using oil cooling with air cooling
Case, is located at tubular casing internal using oil cooling structure ring, absorbs the heat of tubular casing internal stator, rotor using air-cooling apparatus
Amount.Specifically chiller includes air-cooling apparatus, the Compound cooling layer being located between tubular casing and stator coil, Compound cooling layer
Including oil cooling internal layer, air-cooled outer layer, oil cooling internal layer and air-cooled outer layer constitute double-deck cooling casing, one end of oil cooling internal layer be provided with into
Oil pipe, the other end of oil cooling internal layer is provided with flowline, and the cooling oil in the oil circuit of the main frame of compressor enters oil cooling from oil inlet pipe
Internal layer is discharged from flowline after absorbing heat, and air-cooling apparatus include ventilation blower, air inlet tee T, tee T of giving vent to anger, air inlet threeway
One end of the straight tube of pipe is connected with ventilation blower ventilation, and the other end of the straight tube of air inlet tee T is passed through one end of double-deck cooling casing
Inside, the arm of air inlet tee T is connected with air-cooled outer layer, and one end of the straight tube of tee T of giving vent to anger is located at double-deck cooling casing
Inside the other end, the other end of the other end pass-out double-deck cooling casing of the straight tube of tee T of giving vent to anger, the arm of tee T of giving vent to anger
Connect with air-cooled outer layer, cold wind is after the straight tube of air inlet tee T enters the absorbed inside heat of double-deck cooling casing from giving vent to anger three
The straight tube of siphunculus is discharged, and cold wind enters after air-cooled outer layer absorbs the heat of oil cooling internal layer through giving vent to anger three from the arm of air inlet tee T
The arm of siphunculus is discharged.Above-mentioned oil cooling compensate for cooling down, using single mode, the deficiency brought, effectively with the scheme of air-cooled combination
Improve cooling effectiveness.And, the oil circuit part of compressor host be can directly borrow, extra wound oil cooling circuit, structure letter are not required to
Single, improve the cooling effect of motor simultaneously again, indirectly improve the operational efficiency of motor.On the basis of such scheme,
This programme also discloses two kinds of specific oil cooling endothecium structures, specific as follows.
Embodiment one
As shown in Figure 5,6, oil cooling internal layer includes oil-feed oil catcher, fuel-displaced oil catcher, one group of cooling oil curved tube, and cooling oil is bent
Pipe is the metal tube that bending extends, and the import of cooling oil curved tube connected with oil-feed oil catcher, the outlet of cooling oil curved tube with fuel-displaced
Oil catcher connects, and cooling oil sequentially enters oil-feed oil catcher, one group of cooling oil curved tube, discharges after fuel-displaced oil catcher.As Fig. 7 institute
Show, cooling medium divides oil circuit and gas circuit, cooling oil be injected separately into after entering oil-feed oil catcher be arranged in one group of casing internal layer cold
, in oily curved tube, curved tube ring cloth flows into out after fully absorbing heat in the prolongation cooling path of curved tube in the periphery of stator, cooling oil
Oily oil catcher is discharged.Cooling gas simultaneously enter air-cooled outer layer outside motor internal and oil cooling internal layer to cylinder from air inlet tee T
Stator in shape casing and rotor are cooled down, and form bilayer combination cooling structure auxiliary oil cooling internal layer simultaneously with oil cooling internal layer and dissipate
Heat drop temperature.
Embodiment two
As shown in Figure 8,9, oil cooling internal layer includes tubular cooling space, and tubular cooling is provided with axially disposed one in space
Group port plate, the head and the tail of the two neighboring port plate in above-mentioned one group of port plate are staggeredly arranged and form the cold of tortuous extension
Oily runner, discharges after cooling oil cooled oil runner heat exchange.As shown in Figure 10, cooling medium divides oil circuit and gas circuit, cooling oil
Discharge after flowing through the heat exchanger channels of crippling after entering cooling oil passage.Cooling gas simultaneously enter motor from air inlet tee T
Internal and outside oil cooling internal layer air-cooled outer layer cools down to the stator in tubular casing and rotor, simultaneously with oil cooling internal layer shape
Become bilayer combination cooling structure auxiliary oil cooling internal layer radiating and cooling.
The stator winding of the permanent-magnet synchronous oil-cooled motor of this programme is made using novel graphite alkene composite, using graphite
The conduction of alkene superelevation, heat conduction, the performance such as high temperature resistant, make the efficiency of motor have and significantly improve, the volume of motor significantly reduces.
Using shaftless bearing structure, rotor is directly coupled with the rotor shaft extension of compressor host, and front motor cover can borrow compressor
The flange of main frame, simultaneously bonnet also can directly be reduced to a sheet iron, this structure eliminates front and back bearings and in front and back simultaneously
End cap, reduces cost, simplifies structure, eliminates the maintenance in later stage, greatly reduces the fault rate of motor, improves whole
The stability of compressor.Motor adopts the cooling scheme of oil cooling, can directly borrow the oil circuit part of compressor host, is not required to extra
Wound oil cooling circuit, structure is simple, improves the cooling effect of motor simultaneously again, indirectly improves the operational efficiency of motor.Anti-
Shield grade adopts ip55 or ip65, improves the degree of protection of motor, improves the environmental suitability of compressor.Can using this kind of motor
So that energy conservation of compressor is efficiently, structure is simple, and low cost is reliable, and environmental suitability is strong, and later maintenance is simple.This programme
Overcome the deficiencies in the prior art, even more fill up the blank of prior art.The permanent-magnet synchronous oil-cooled motor of this programme is provided with solely
Vertical oil cooling system, includes support 1, stator coil 2, rotor 3, back shroud 4 successively.Wherein, the flange of support 1 and compressor
The flange of main frame directly couples, and its double-decker designs, and has fuel feed hole and oil outlet.The bearing-free main shaft of rotor 3 directly and is pressed
The projecting shaft connection of contracting machine host, has high-performance permanent magnet in rotor 3, and its rotor punching is that the synchronous motor of unique design is special
Rotor punching.
Circuit, module and the electronic devices and components being related in such scheme in addition to special instruction, the tool realized according to it
Body function can select design generally in the art and scheme it is also possible to select other designs and scheme according to actual needs.
This programme has obvious technical characterstic compared with existing compressor motor special, specifically has: (1) stator winding is adopted
Made with novel graphite alkene composite, using the conduction of its superelevation, heat conduction, the performance such as high temperature resistant, so that the efficiency of motor is had greatly
The raising of width, the volume of motor significantly reduces;(2) adopt shaftless bearing structure, rotor directly and compressor host rotor
Shaft extension couples, and front motor cover can borrow the flange of compressor host, and bonnet also can directly be reduced to a sheet iron simultaneously, with
When eliminate front and back bearings and front and rear cover, reduce cost, simplify structure, eliminate the maintenance in later stage, greatly reduce
The fault rate of motor, improves the stability of whole compressor;(3) motor adopts the cooling scheme of oil cooling, can directly borrow compression
The oil circuit part of machine host, is not required to extra wound oil cooling circuit, and structure is simple, improves the cooling effect of motor, indirectly simultaneously again
The operational efficiency that improve motor;(4) degree of protection adopts ip55 or ip65, can improve the degree of protection of motor, improves pressure
The environmental suitability of contracting machine.Can make energy conservation of compressor efficiently using this kind of motor, structure is simple, low cost, reliable, ring
Border strong adaptability, later maintenance is simple.This programme has filled up the blank of prior art, is a kind of bearing-free direct connection of novel and unique
The special permanent-magnet synchronous oil-cooled motor of compressor.Based on above feature, the compressor of the use Graphene winding of this programme is special
Bearing-free direct connection synchronous magnetic resistance motor is compared existing product and is had prominent substantive distinguishing features and significantly improve.
Compressor with the Graphene winding special bearing-free direct connection permagnetic synchronous motor of this programme is not limited to concrete reality
Apply the content disclosed in mode, the technical scheme occurring in embodiment can be with individualism it is also possible to mutually comprise, this area skill
Art personnel fall within the scope of this programme according to this programme with reference to the simple alternative that common knowledge is made.
Claims (10)
1. a kind of compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding, is characterized in that including tubular machine
Shell, the stator coil being located in described tubular casing, the p-m rotor being located in described stator coil, it is located at described tubular casing
Chiller and between described stator coil, the front end of described tubular casing is fixedly connected by flange with compressor, described cylinder
The rear end of shape casing is covered with thin plate capping, and the bearing-free main shaft of described p-m rotor is connected with the transmission shaft driven of described compressor
Connect, described tubular casing includes casing ontology and casing pedestal, described casing ontology is welded on described casing pedestal, described fixed
Subcoil includes graphene composite material stator winding, and described p-m rotor includes curve fence row pattern rotor punching.
2. the compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding according to claim 1, it is special
Levy and be, described graphene composite material stator winding includes enamel covered wire, and described enamel covered wire is contained within grapheme material.
3. the compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding according to claim 1, it is special
Levy and be, described curve fence row pattern rotor punching is circular punching, the center circle of described curve fence row pattern rotor punching
In the hole is provided with " ten " font pedestal beam, and the central part of described pedestal beam is provided with axis hole, four ends of described pedestal beam and described annulus
The inner ring of the ring body of shape punching is fixedly connected to form four radiating sectors, is provided with curve fence row in described radiating sector, described
It is in the curve fence that continuous wave pattern is distributed that curve fence row includes one group, along described ring body in the ring body of described circular punching
Outer ring is circumferentially with the oval line embedding groove of equidistant arrangement, the described ellipse major axis of line embedding groove or the centripetal end extended line of short axle
The center of circle by described ring body.
4. the compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding according to claim 3, it is special
Levy and be, the radiating that the described ring body between described line embedding groove and described inner ring is provided with the circumferentially equidistant arrangement along described inner ring is led to
Hole.
5. the compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding according to claim 3, it is special
Levy and be, four beam arms of described pedestal beam are provided with punching positioning slotted hole, and adjacent rotor punching positions length by punching
Circular hole fixes circumferential relative position.
6. the compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding according to claim 3, it is special
Levy and be, in the ring body of described circular punching, the outer ring along described ring body is circumferentially with 36 oval rules of equidistant arrangement
Groove, is provided with opening groove between described ellipse line embedding groove and described outer ring.
7. the compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding according to claim 3, it is special
Levy and be, described inner ring is provided with 1~4 key teeth, the tall and big opposite side tooth in described key teeth of side tooth of described key teeth is high, institute
The increment stating key teeth is curved.
8. the compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding according to claim 1, it is special
Levy and be, described chiller includes air-cooling apparatus, the Compound cooling layer being located between described tubular casing and described stator coil,
Described Compound cooling layer includes oil cooling internal layer, air-cooled outer layer, and described oil cooling internal layer constitutes double-deck cooler with described air-cooled outer layer
Shell, one end of described oil cooling internal layer is provided with oil inlet pipe, and the other end of described oil cooling internal layer is provided with flowline, the master of described compressor
Cooling oil in the oil circuit of machine enters after described oil cooling internal layer absorbs heat from described oil inlet pipe and discharges from described flowline, described
Air-cooling apparatus include ventilation blower, air inlet tee T, tee T of giving vent to anger, one end of straight tube of described air inlet tee T and described ventilation
Machine ventilation connects, and the other end of the straight tube of described air inlet tee T is passed through inside one end of described double-deck cooling casing, described enter
The arm of gas tee T is connected with described air-cooled outer layer, and one end of the straight tube of described tee T of giving vent to anger is located at described bilayer cooler
Inside the other end of shell, described in the other end pass-out of the straight tube of described tee T of giving vent to anger, the other end of double-deck cooling casing, described
The arm of tee T of giving vent to anger is connected with described air-cooled outer layer, and cold wind enters described double-deck cooling from the straight tube of described air inlet tee T
Discharge from the straight tube of described tee T of giving vent to anger after the absorbed inside heat of casing, cold wind enters from the arm of described air inlet tee T
After the heat of the described air-cooled outer layer described oil cooling internal layer of absorption, the arm through described tee T of giving vent to anger is discharged.
9. the compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding according to claim 8, it is special
Levy and be, described oil cooling internal layer includes oil-feed oil catcher, fuel-displaced oil catcher, one group of cooling oil curved tube, described cooling oil curved tube is
The metal tube that bending extends, the import of described cooling oil curved tube connected with described oil-feed oil catcher, the going out of described cooling oil curved tube
Mouth is connected with described fuel-displaced oil catcher, and cooling oil sequentially enters described oil-feed oil catcher, one group of cooling oil curved tube, fuel-displaced oil catcher
After discharge.
10. the compressor special bearing-free direct connection permagnetic synchronous motor of use Graphene winding according to claim 8, it is special
Levy and be, described oil cooling internal layer includes tubular cooling space, being provided with axially disposed one group stream in described tubular cooling space
Road dividing plate, the head and the tail of the two neighboring port plate in described one group of port plate are staggeredly arranged and form the tortuous cooling oil extending
Runner, cooling oil is discharged after described cooling oil runner heat exchange.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610954542.1A CN106357023A (en) | 2016-10-27 | 2016-10-27 | Special no-bearing direct-connection permanent-magnet synchronous motor for compressor using graphene winding |
Applications Claiming Priority (1)
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CN107511469A (en) * | 2017-10-13 | 2017-12-26 | 安阳恒安电机有限公司 | A kind of squirrel cage motor rotor low pressure cast copper equipment, cast copper and its cast copper method |
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