CN206180717U - Directly ally oneself with PMSM with special no bearing of compressor of graphite alkene winding - Google Patents

Abstract

The utility model relates to a directly ally oneself with PMSM with special no bearing of compressor of graphite alkene winding, including cylindrical casing, establish the stator coil in cylindrical casing, establish the permanent magnet rotor in stator coil, establish the cooling device between cylindrical casing and stator coil, cylindrical casing's front end and compressor pass through flange fixed connection, cylindrical casing's rear end cap is equipped with the sheet metal closing cap, permanent magnet rotor's the no bearing main shaft and the transmission shaft transmission of compressor are connected, cylindrical casing includes casing body and casing base, the welding of casing body is on the casing base, stator coil includes graphite alkene combined material stator winding, permanent magnet rotor includes curve fence row form rotor punching. The utility model discloses a motor stator winding of graphene materials preparation has improved stator winding's electric conductivity, temperature toleration by a wide margin, has small, efficient characteristics.

Description

A kind of special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding

Technical field

This utility model is related to a kind of novel permanent magnetic synchronous motor, more particularly to a kind of compressor of employing Graphene winding Special bearing-free direct connection permagnetic synchronous motor, belongs to machine field.

Background technology

Compressor at present in Chinese market is most of using conventional asynchronous motor, the connection with compressor host head Method is connect 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, Jing is needed often to safeguard.Frequency conversion permanent magnet compressor is occurred in that on nearly 2 years market, is driven using permagnetic synchronous motor, due to its volume The series of advantages such as little, lightweight, efficiency high, power factor height, simple structure, reliability height, in the side such as commercial production, civilian Face is widely applied.Although it is with the obvious advantage with conventional asynchronous motor, the structure of magneto is different with common Step motor is identical (having front and back bearings, front and rear cover, independent blower fan etc.), and motor bearings needs periodic maintenance, and the high (electricity of fault rate The failure of machine more than 60% is that bearing is caused).Motor be unable to do without bearing supporting, is supported with mechanical bearing, rotor motion process In there are problems that mechanical friction.Mechanical friction not only increased the frictional resistance of rotor, make bearing wear, reduce bearing life, Mechanical vibration and noise are produced, and part can be caused to generate heat, make lubricant degradation, motor gas-gap can be caused not when serious Uniformly, winding heating, temperature rise increase, 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, the winding that radial force is produced in magnetic suspension bearing motor is laminated to Stator winding on so as to can inherently produce the controllable suspending power of size and torque, realize rotor mechanical rub rotation.

The content of the invention

The special bearing-free direct connection permagnetic synchronous motor of compressor of this utility model Graphene winding discloses new side Case, the motor stator winding made using grapheme material, solves the problems, such as that existing permanent magnet synchronous electric engine efficiency has much room for improvement.

This utility model special bearing-free direct connection permagnetic synchronous motor of compressor of Graphene winding include tubular casing, The stator coil that is located in tubular casing, the p-m rotor being located in stator coil, it is located between tubular casing and stator coil Chiller, the front end of tubular casing is fixedly connected with compressor by flange, and the rear end of tubular casing is covered with thin plate capping, The bearing-free main shaft of p-m rotor is connected with the transmission shaft driven of compressor, and tubular casing includes casing ontology and casing pedestal, Casing ontology 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.

This utility model adopts Graphene material with the special bearing-free direct connection permagnetic synchronous motor of compressor of Graphene winding The motor stator winding that material makes, greatly improved electric conductivity, the temperature tolerance of stator winding, the spy with small volume, efficiency high Point.

Description of the drawings

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 sections 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 sections 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 utility model is described in further detail.

As shown in Fig. 1~2, this utility model special bearing-free direct connection permagnetic synchronous motor of compressor of Graphene winding Schematic diagram.Included tubular casing, be located at tubular with the special bearing-free direct connection permagnetic synchronous motor of the compressor of Graphene winding Stator coil, the p-m rotor being located in stator coil in casing, the chiller being located between tubular casing and stator coil, The front end of tubular casing is fixedly connected with compressor by flange, and the rear end of tubular casing is covered with thin plate capping, p-m rotor Bearing-free main shaft be connected with the transmission shaft driven of compressor, tubular casing includes casing ontology and casing pedestal, casing ontology It is welded on casing pedestal, stator coil includes graphene composite material stator winding, p-m rotor includes curve fence row pattern Rotor punching.Graphene (Graphene) is the only one layer of atom thick for being stripped out from graphite material, being made up of carbon atom The two dimensional crystal of degree.Graphene is both most thin material, is also most tough material, and fracture strength is more taller than best steel 200 times, while it has good elasticity again, stretch range can reach the 20% of own dimensions, be that current nature is most thin, intensity Highest material.If making hammock with the Graphene of one piece of 1 square metre of area, weight itself just can bear less than 1 milligram One one kilogram of cat.Graphene has perfect two dimensional crystal structure, and its lattice is six sides surrounded by six carbon atom Shape, thickness is an atomic layer.Bonded by σ between carbon atom, combination is sp2 hydridization, and these σ keys impart Graphene Extremely excellent mechanical property and structural rigidity.The hardness of Graphene is stronger than best iron and steel 100 times, or even also to exceed brill Stone.In Graphene, each carbon atom has the p electronics of a non-bonding, and these p electronics can be moved freely in crystal, And movement velocity is up to the 1/300 of the light velocity, the good electric conductivity of Graphene is this gived.Graphene is the electrically conducting transparent 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 Transmitance is significantly larger than ito thin film.Graphene is most thin, the most hard nano material in known world, and it is almost completely thoroughly Bright, 2.3% light is only absorbed, heat conductivity is up to 5300W/mK, higher than CNT and diamond, its electronics under room temperature Mobility is more than 15000cm²/ Vs, and higher than CNT or silicon crystal, and resistivity only about 10~6 Ω cm, than copper or Silver is lower, is the minimum material of world resistivity.Because its resistivity is extremely low, the speed of electron transfer is exceedingly fast, therefore can be used to send out Open up thinner, conductive speed a new generation's electronic component or transistor faster.The scientific circles that occur in of Graphene have evoked huge Great waves.It has been found that Graphene has unusual electric conductivity, beyond the intensity and fabulous printing opacity of iron and steel decades of times Property, its appearance is expected to cause one to take turns revolution in hyundai electronicses sciemtifec and technical sphere.In Graphene, electronics can be moved extremely efficiently Move, and traditional quasiconductor and conductor, such as silicon and copper Graphene that is far from show must well.Due to the collision of electronics and atom, Traditional quasiconductor and the form of conductor heat releases some energy, and general computer chip is wasted by this way within 2013 72%~81% electric energy, Graphene is then different, and its electron energy will not be depleted, it is extraordinary that this is provided with it Good characteristic.

More interestingly the physical property of it that many " extreme " properties.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 in the world electric conductivity is best Material, electronics movement velocity wherein has reached the 1/300 of the light velocity, the motion speed considerably beyond electronics in general conductor Degree.Centesimal Graphene is mixed in plastics, can just make plastics possess good electric conductivity, add millesimal graphite Alkene, the heat resistanceheat resistant performance that can make plastics improves 30 degrees Celsius.The stator winding of existing motor is mostly by enamel covered wire coiling Into, if a certain proportion of Graphene is penetrated in enamel covered wire will greatly improve the electric conductivity and temperature tolerance of enamel covered wire, will The electrical loss for making copper cash itself is preferably minimized even without making the efficiency of motor has and significantly improve, and the volume of motor is significantly Reduce, particularly heavy-duty motor is meant a great, this energy-saving and emission-reduction consumption reduction to country's concern at present there will be revolutionary meaning Justice.Therefore, the stator winding of this programme absorbs the good characteristic of grapheme material, i.e. graphene composite material stator winding bag Enamel covered wire is included, enamel covered wire is contained within grapheme material.

The rotor of this programme is overrided to form by rotor punching, and in order to improve the performance of rotor, this programme is employed New rotor punching, i.e., with the punching of fence radiator structure, as shown in figure 3, specifically curve fence row pattern rotor punching It is circular punching, " ten " font pedestal beam, the central authorities of pedestal beam is provided with the center hole of curve fence row pattern rotor punching 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 Curve fence row is provided with sector, curve fence row includes one group of curve fence in continuous wave pattern distribution, circular punching Be circumferentially with the oval line embedding groove of equidistant arrangement in ring body along the outer ring of ring body, the major axis of oval line embedding groove or short axle to The center of circle that heart end extended line passes through ring body.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 further improve the heat dispersion of rotor, mitigate weight, while protecting Card structure is unlikely to deform, and the rotor punching of this programme is also additionally arranged louvre, specifically sets in the ring body between line embedding groove and inner ring 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 detent torque so that with the raising of motor speed, rotor current and torque while 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.At the same time, 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 smoothed, and reduces vibration and the noise of motor, Make the close distribution of motor rotor teeth portion magnetic more rationally, improve electric efficiency.Further, in order to improve the structure and 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, Opening groove is provided between oval line embedding groove and outer ring.Opening groove is released can the stress at notch, will not make punching Piece is deformed, so as to solve the problems, such as amount of unbalance and some additional losses for producing because rotor punching deforms, Certain thermolysis is played to the cast copper or cast aluminium in line embedding groove, 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 for 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 for laminating is in week Upwards alignment, is provided with punching positioning slotted hole on four beam arms of pedestal beam, and adjacent rotor punching is fixed by punching Bit length circular hole fixes circumferential relative position, as shown in figure 4, the assembly performance in order to improve armature spindle and punching, reduces 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 it is 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 of such scheme coordinates and also cause no matter axle rotating, above-mentioned cooperation all to realize certain damping action, Lower the impulsive force of suddenly change rotation direction, reduce abrasion, while playing a part of in, to make cooperation more smart in assembling Really, and arcuate structure can also avoid the abrasion and the noise problem for producing of sliding that angular structures bring.

In order to improve the heat dispersion of motor, this programme discloses a kind of cooling side of employing oil cooling in combination with air cooling Case, using oil cooling structure ring tubular casing internal is located at, and using air-cooling apparatus the heat of tubular casing internal stator, rotor is absorbed 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 absorbs and discharged from flowline after heat, and air-cooling apparatus include ventilation blower, air inlet tee T, outlet tee T, 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 outlet tee T is located at double-deck cooling casing Inside the other end, the other end of the double-deck cooling casing of other end pass-out of the straight tube of outlet tee T, the arm of outlet tee T Connect with air-cooled outer layer, cold wind is entered after the double-deck absorbed inside heat for cooling down casing from outlet three from the straight tube of air inlet tee T The straight tube of siphunculus is discharged, and cold wind is from the arm of air inlet tee T into Jing outlets three after the heat of air-cooled outer layer absorption oil cooling internal layer The arm of siphunculus is discharged.Above-mentioned oil cooling and the scheme of air-cooled combination compensate for using single mode cooling zone come deficiency, effectively Improve cooling effectiveness.And, the oil circuit part of compressor host can be directly borrowed, it is not required to extra wound oil cooling circuit, structure letter It is single, while and improve the cooling effect of motor, 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 connects with oil-feed oil catcher, the outlet of cooling oil curved tube with it is fuel-displaced Oil catcher is connected, and cooling oil sequentially entered and discharged after oil-feed oil catcher, one group of cooling oil curved tube, fuel-displaced oil catcher.Such as Fig. 7 institutes Show, cooling medium point oil circuit and gas circuit, cooling oil be injected separately into into after oil-feed oil catcher be arranged in one group of casing internal layer it is cold In oily curved tube, curved tube ring cloth is flowed into out in the periphery of stator, cooling oil after the prolongation cooling path of curved tube is fully absorbed heat Oily oil catcher is discharged.Cooling gas are from air inlet tee T simultaneously into the air-cooled outer layer on the outside of motor internal and oil cooling internal layer to cylinder Stator and rotor in shape casing is cooled down, while form bilayer combination cooling structure auxiliary oil cooling internal layer with oil cooling internal layer dissipating Heat drop temperature.

Embodiment two

As shown in Figure 8,9, oil cooling internal layer includes that tubular cools down 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 to form the cold of tortuous extension Oily runner, cooling oil is discharged Jing after the heat exchange of cooling oil runner.As shown in Figure 10, cooling medium point oil circuit and gas circuit, cooling oil Flow through into after cooling oil passage and discharged after the heat exchanger channels of crippling.Cooling gas enter motor simultaneously from air inlet tee T Air-cooled outer layer on the outside of internal and oil cooling internal layer is cooled down to the stator and rotor in tubular casing, at the same with oil cooling internal layer shape Oil cooling internal layer radiating and cooling is aided in into bilayer combination cooling structure.

The stator winding of the permanent-magnet synchronous oil-cooled motor of this programme is made using novel graphite alkene composite, using graphite The performances such as conduction, heat conduction, the high temperature resistant of alkene superelevation, making the efficiency of motor has and significantly improves, and the volume of motor significantly reduces. Using shaftless bearing structure, rotor directly couples with the rotor shaft extension of compressor host, and front motor cover can borrow compressor The flange of main frame, while 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 can directly borrow the oil circuit part of compressor host using the cooling scheme of oil cooling, be not required to extra Wound oil cooling circuit, simple structure, while and improve the cooling effect of motor, indirectly improve the operational efficiency of motor.It is 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, simple structure, low cost is reliable, and environmental suitability is strong, and later maintenance is simple.This programme The deficiencies in the prior art are overcome, the blank of prior art has even more been filled up.The permanent-magnet synchronous oil-cooled motor of this programme is provided with solely Vertical oil cooling system, successively including support 1, stator coil 2, rotor 3, back shroud 4.Wherein, the flange and compressor of support 1 The flange of main frame directly couples, its double-decker design, there is fuel feed hole and oil outlet.The bearing-free main shaft of rotor 3 directly with pressure The projecting shaft connection of contracting machine host, has high-performance permanent magnet in rotor 3, and its rotor punching is special for the synchronous motor of unique design Rotor punching.

Circuit, module and the electronic devices and components being related in such scheme in addition to special instruction, according to the tool that it is realized 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 performances such as the conduction of its superelevation, heat conduction, high temperature resistants, making the efficiency of motor has greatly The raising of width, the volume of motor significantly reduces；Adopt shaftless bearing structure, rotor directly with the rotor of compressor host Shaft extension couples, and front motor cover can borrow the flange of compressor host, while bonnet also can directly be reduced to a sheet iron, together 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 can directly borrow compression using the cooling scheme of oil cooling The oil circuit part of machine host, is not required to extra wound oil cooling circuit, simple structure, while and improve the cooling effect of motor, indirectly 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, simple structure, low cost is 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 compares existing product and has substantive distinguishing features and progress.

The special bearing-free direct connection permagnetic synchronous motor of compressor with Graphene winding of this programme is not limited to concrete reality The content disclosed in mode is applied, the technical scheme occurred in embodiment can be with individualism, it is also possible to mutually include, 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 special bearing-free direct connection permagnetic synchronous motor of compressor of use Graphene winding, is characterized in that, including tubular machine Shell, the stator coil being located in the tubular casing, the p-m rotor being located in the stator coil, it is located at the tubular casing With the chiller between the stator coil, the front end of the tubular casing is fixedly connected with compressor by flange, the cylinder The rear end of shape casing is covered with thin plate capping, and the bearing-free main shaft of the p-m rotor connects with the transmission shaft driven of the compressor Connect, the tubular casing includes casing ontology and casing pedestal, and the casing ontology is welded on the casing pedestal, described fixed Subcoil includes graphene composite material stator winding, and the p-m rotor includes curve fence row pattern rotor punching.

2. the special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding according to claim 1, it is special Levy and be, the graphene composite material stator winding includes enamel covered wire, the enamel covered wire is contained within grapheme material.

3. the special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding according to claim 1, it is special Levy and be, the curve fence row pattern rotor punching is circular punching, the center circle of the curve fence row pattern rotor punching " ten " font pedestal beam is provided with hole, the central part of the pedestal beam is provided with axis hole, four ends and the annulus of the pedestal beam The inner ring of the ring body of shape punching is fixedly connected to form four radiating sectors, and curve fence row is provided with the radiating sector, described Curve fence row includes one group of curve fence in continuous wave pattern distribution, along the ring body in the ring body of the circular punching Outer ring is circumferentially with the oval line embedding groove of equidistant arrangement, the major axis of the oval line embedding groove or the centripetal end extended line of short axle By the center of circle of the ring body.

4. the special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding according to claim 3, it is special Levy and be, the ring body between the line embedding groove and the inner ring is provided with the radiating of the circumferentially equidistant arrangement along the inner ring and leads to Hole.

5. the special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding according to claim 3, it is special Levy and be, four beam arms of the pedestal beam are provided with punching positioning slotted hole, and adjacent rotor punching is grown by punching positioning Circular hole fixes circumferential relative position.

6. the special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding according to claim 3, it is special Levy and be, be circumferentially with 36 oval rules of equidistant arrangement in the ring body of the circular punching along the outer ring of the ring body Groove, between the oval line embedding groove and the outer ring opening groove is provided with.

7. the special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding according to claim 3, it is special Levy and be, the inner ring is provided with 1~4 key teeth, the tall and big opposite side tooth in the key teeth of side tooth of the key teeth is high, institute The increment for stating key teeth is curved.

8. the special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding according to claim 1, it is special Levy and be, the chiller includes air-cooling apparatus, the Compound cooling layer being located between the tubular casing and the stator coil, The Compound cooling layer includes oil cooling internal layer, air-cooled outer layer, and the oil cooling internal layer constitutes double-deck cooler with the air-cooled outer layer Shell, one end of the oil cooling internal layer is provided with oil inlet pipe, and the other end of the oil cooling internal layer is provided with flowline, the master of the compressor Cooling oil in the oil circuit of machine enters the oil cooling internal layer and absorbs and discharge from the flowline after heat from the oil inlet pipe, described Air-cooling apparatus include ventilation blower, air inlet tee T, outlet tee T, one end and the ventilation of the straight tube of the air inlet tee T Machine ventilation connection, the other end of the straight tube of the air inlet tee T is passed through inside one end of the double-deck cooling casing, it is described enter The arm of gas tee T is connected with the air-cooled outer layer, and one end of the straight tube of the outlet tee T is located at the double-deck cooler Inside the other end of shell, the other end of double-deck cooling casing, described described in the other end pass-out of the straight tube of the outlet tee T The arm of outlet tee T is connected with the air-cooled outer layer, and cold wind enters the double-deck cooling from the straight tube of the air inlet tee T Discharge from the straight tube of the outlet tee T after the absorbed inside heat of casing, cold wind is entered from the arm of the air inlet tee T The air-cooled outer layer absorbs the arm of outlet tee T described in Jing after the heat of the oil cooling internal layer and discharges.

9. the special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding according to claim 8, it is special Levy and be, the oil cooling internal layer includes oil-feed oil catcher, fuel-displaced oil catcher, one group of cooling oil curved tube, the cooling oil curved tube is Metal tube that bending extends, the import of the cooling oil curved tube connects with the oil-feed oil catcher, and the cooling oil curved tube goes out Mouth is connected with the fuel-displaced oil catcher, and cooling oil sequentially enters the oil-feed oil catcher, one group of cooling oil curved tube, fuel-displaced oil catcher After discharge.

10. the special bearing-free direct connection permagnetic synchronous motor of the compressor of use Graphene winding according to claim 8, it is special Levy and be, the oil cooling internal layer includes that tubular cools down space, and in the tubular cooling space axially disposed one group stream is provided with Road dividing plate, the head and the tail of the two neighboring port plate in one group of port plate are staggeredly arranged to form the cooling oil of tortuous extension Runner, cooling oil is discharged after the cooling oil runner heat exchange described in.