CN101210560B - Gyration type compressor and air-conditioner with the same - Google Patents

Gyration type compressor and air-conditioner with the same Download PDF

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Publication number
CN101210560B
CN101210560B CN2006101724129A CN200610172412A CN101210560B CN 101210560 B CN101210560 B CN 101210560B CN 2006101724129 A CN2006101724129 A CN 2006101724129A CN 200610172412 A CN200610172412 A CN 200610172412A CN 101210560 B CN101210560 B CN 101210560B
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China
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rotary compressor
described rotary
rotor
stator
drive motor
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CN101210560A (en
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具世珍
李宰烈
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LG Electronics Inc
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LG Electronics Inc
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Abstract

Disclosed is a rotary compressor with a synchronous reluctance motor and HFC- or HCFC-based refrigerant, wherein ester oil is used under the circumstance of HFC-based refrigerant, mineral oil is used under the circumstance of HCFC-based refrigerant, the motor is provided with a plurality of magnetic flux shielding layer, and surfaces of the outer circumferences of the motor are symmetrical. An insulation film made of a crystal plastic film is arranged between a stator which drives the motor and a magnet exciting coil and actualizes the magnet exciting coil by forming an enamel coating. Hence, when a drive motor is assembled, deformation of a rotor is reduced, deterioration of the compressor due to slip of the drive motor is reduced, and thermal radiation of the rotor is weakened. In addition, environment-friendly refrigerant and oil and a suitable drive motor shall be used.

Description

Rotary compressor and air conditioner with this rotary compressor
Technical field
The present invention relates to rotary compressor and air conditioner, relate more particularly to have synchronous reluctance motor and hydrogen fluorohydrocarbon (HFC) or the rotary compressor of the basic refrigeration agent of HCFC (HCFC) and air conditioner with this rotary compressor with this rotary compressor.
Background technique
Usually; Through drive motor and compression member are set in housing; The rotary compressor driven application is in the refrigeration cycle of air conditioner, and this drive motor is used to produce driving force, and this compression member is used for through the driving force that receives drive motor mechanical energy being converted to the compression ability of compressed fluid.As the drive motor that is applied to rotary compressor, the main induction motor that uses with stator and rotor.In this induction motor, armature winding is installed in stator and rotor place respectively, and an armature winding is operated by the electromagnetic induction of another armature winding.
Induction motor has simple structure and low price, and handles easily.But induction motor has following shortcoming.Between stator and rotor, slippage occurs, thereby reduce the performance of induction motor.In addition, when induction current flows into rotor, produce heat, thereby reduce the efficient of induction motor owing to thermal loss from rotor.
Rotary compressor has used the basic refrigeration agent of chloro-fluoro-hydrocarbons (CFC) as compressed fluid.But because CFC base refrigeration agent (for example CFC11, CFC12, CFC113, CFC114 and CFC115) badly influences the report of the destruction, global warming of ozonosphere etc., the whole world has limited CFC base refrigeration agent.Therefore, need new refrigeration agent with substitute CFC base refrigeration agent.
As a kind of alternative refrigerant, have with the hypoergia of ozone and in air, have the hydrogen fluorohydrocarbon (HFC) of short resolving time and just arouse attention.As HFC base refrigeration agent, thus owing to following reason mainly use CFC134a (1,1,1-HFC-134a, CH 2FCF 3).At first, CFC-134a than CFC12 to eco-friendly.More specifically, suppose that (freon: ozone depletion potential CC12F2) (ODP) is 1 to CFC-12, and then the ODP of CFC-134a is 0.In addition, suppose that the global warming potentiality (GWP) of CFC12 is 1, then the GWP of CFC134a is less than 0.3.Secondly, CFC134a is aphlogistic, and has the thermal property similar with CFC12.Therefore, CFC134a also can be applied to the compressor as refrigeration agent CFC12.
But, because CFC134a has the chemical structure of himself, so it is not easy to mix with the refrigerating machine oil that is applied to CFC12 such as mineral oil and alkylbenzene oil.In addition, CFC134a has relatively poor antiwear characteristic and lubricating function at the compression member place.In addition, CFC134a seriously influences insulating material, drying material etc.That is to say that when CFC12 and conventional chiller oil as mineral oil or alkylbenzene oil combination, their are mixing fully each other.Therefore, cause that the possibility of following problem is less, thereby this problem is a refrigerating machine oil with CFC12 in the compressor separates and stays in the heat exchanger.But not chloride HFC base refrigeration agent does not have the refrigerating machine oil that much can easily mix with it.Therefore, when HFC base refrigerant applications during, because staying on the heat exchanger, refrigerating machine oil do not regathered compressor, so the function of compressor reduces in compressor.
Summary of the invention
Therefore; The purpose of this invention is to provide rotary compressor and air conditioner with this rotary compressor; This rotary compressor has high efficiency drive motor, and this drive motor can produce less slippage between rotor and stator, and produces less heat loss at the rotor place.
Another object of the present invention provides rotary compressor and has the air conditioner of this rotary compressor, the function that this rotary compressor can strengthen this rotary compressor through refrigeration agent and the high efficiency drive motor that uses eco-friendly.
Another purpose of the present invention provides rotary compressor and has the air conditioner of this rotary compressor, this rotary compressor can through use refrigeration agent to eco-friendly, through use easily with to the refrigerant mixed of eco-friendly, have the reliability that excellent abrasion resistance and lubrication property and not serious influences the oil of insulating material, drying material etc., is suitable for the refrigeration agent of eco-friendly and drive motor that should oil are strengthened this rotary compressor through use.
In order to realize these and other advantage; And according to the object of the invention; As described in and broadness specific at this, a kind of rotary compressor is provided, this rotary compressor comprises: housing; This housing has the sealed inner that is used to fill a certain amount of oil, and sucking pipe and outlet pipe are connected on this housing; Drive motor, this drive motor are installed in the inner space of said housing; At least one cylinder, said at least one cylinder are fixed on the place, inner space of said housing; A plurality of shaft bearing plates, these shaft bearing plates cover said cylinder, thereby form compression volume, are used to support the running shaft of said drive motor; At least one rolling piston, said at least one rolling piston carries out orbiting in the compression volume of said cylinder, is connected on the eccentric part of said running shaft, and the inner circumferential surface of the said cylinder of linear contact, be used to make flow of refrigerant; And at least one blade; Said at least one blade touch scrolling piston is used for said compression volume is divided into suction chamber and pressing chamber, and wherein said drive motor comprises: stator; This stator correspondingly forms when a plurality of first steel plate of lamination; Thereby be inserted in the inner circumferential surface of said housing, said first steel plate has a plurality of salient poles, on these salient poles, twines field coil; Rotor; This rotor correspondingly forms when a plurality of second steel plate of lamination; Thereby can be rotatably set in the said stator; Said second steel plate is formed with a plurality of flux shield layers, wherein said flux shield layer along the width of radial direction and between said flux shield layer the center along the width of this radial direction towards said drive motor increase; And running shaft, this running shaft is connected to said centre of rotor.
When combine accompanying drawing understand of the present invention below during detailed description, above-mentioned and other purpose, characteristic, aspect and advantage of the present invention will become more obvious.
Description of drawings
Accompanying drawing is included in to provide further understanding of the present invention, and these accompanying drawings are added into and constitute the part of this specification, and these accompanying drawings illustrate embodiments of the invention, and are used for explaining principle of the present invention with specification.
In the accompanying drawings:
Fig. 1 is a longitudinal sectional view, and the rotary compressor with synchronous reluctance motor according to first embodiment of the invention is shown;
Fig. 2 is a viewgraph of cross-section, and the synchronous reluctance motor that is applied to according to rotary compressor of the present invention is shown;
Fig. 3 is a viewgraph of cross-section, and the stator that is applied to according to the synchronous reluctance motor of rotary compressor of the present invention is shown;
Fig. 4 to 6 is planimetric maps, and the rotor of the drive motor of first to the 3rd embodiment's rotary compressor according to the present invention is shown;
Fig. 7 is a schematic representation, and the top according to rotary compressor of the present invention is shown;
Fig. 8 is a schematic representation, and the bottom according to rotary compressor of the present invention is shown;
Fig. 9 is a longitudinal sectional view, and the double cylinders rotary compressor that has synchronous reluctance motor according to of the present invention is shown; And
Figure 10 is a front view, and the modification according to the accumulator of the double cylinders rotary compressor with synchronous reluctance motor of the present invention is shown.
Embodiment
To mention the preferred embodiments of the present invention in detail now, illustrate the instance of these preferred embodiments in the accompanying drawings.
Hereinafter, with describing according to the rotary compressor of first embodiment of the invention and having the air conditioner of this rotary compressor.
Fig. 1 is a longitudinal sectional view, and the rotary compressor with synchronous reluctance motor according to first embodiment of the invention is shown.
As shown in Figure 1, rotary compressor according to the present invention comprises: housing 10, this housing 10 form filling a certain amount of oil hermetically, and refrigerant suction pipe (SP) and refrigerant discharge leader (DP) are connected on this housing 10; Drive motor 20, this drive motor 20 is arranged on the upside of housing 10, is used to produce rotating force; And compression member 30, this compression member 30 is arranged on the downside of housing 10, is used for coming compressed refrigerant through receiving the rotating force that is produced by drive motor 20.
When using the basic refrigeration agent of hydrogen fluorohydrocarbon (HFC), use be fatty acid ester oil, this fatty acid ester oil has the viscosity of 2~70cSt under 40 ℃ temperature, under 100 ℃ temperature, have the viscosity of 1~9cSt, and ester coupling at least twice in a molecule.On the contrary, when using the basic refrigeration agent of HCFC (HCFC), use be fatty acid mineral oil, this fatty acid mineral oil has the viscosity of 32~68cSt under 40 ℃ temperature, and ester coupling at least twice in a molecule.
Preferably, for steady fuel feeding, with oil with than high highly-filled in housing 10 of the cylinder 31 of explanation after a while.
Housing 10 comprises: main body 11, and this main body 11 has cylinder form, and the upside of circumferential surface and downside have drive motor 20 and compression member 30 within it; And the loam cake 12 and lower cover 13 that are respectively applied for main body covered 11 upside and downside.As shown in Figure 2, the volume (V) from the upper end of the inner circumferential surface of loam cake 12 to the upper end of the stator of drive motor 20 preferably forms greater than 5000mm 3Thereby, make leakage of oil minimum.
As illustrated in fig. 1 and 2, this drive motor 20 comprises: stator 21, and this stator 21 is fixed to the inner space of housing 10, and receives the electric power that comes from the outside; Rotor 22, this rotor 22 with and stator 21 between gapped mode be arranged in the stator 21, and rotate through interacting with stator 21; Running shaft 23, this running shaft 23 is connected on the rotor 22 through shrink-fit, is used for the rotating force of drive motor 20 is delivered to compression member 30.
Shown in Fig. 2 and 3, stator 21 comprises: have the stator lasmination 25 of cylinder form, this stator lasmination 25 is used for rotor 22 rotatably is positioned at the center of stator 21; And field coil 26, this field coil 26 is wrapped on the stator lasmination 25 and with external power and links to each other.
Stator lasmination 25 forms the magnetic circuit of annular, and a plurality of salient pole 25a is outstanding from the inner circumferential surface of this magnetic circuit with identical distance.Preferably, the length from the upper end of stator lasmination 25 to the lower surface of upper bearing (metal) plate (will be called main bearing) 32 is approximately 110~140mm.Preferably; Center axially with stator lasmination 25 is a benchmark; The height difference at the center axially of rotor pack 27 in the scope of-2~3mm, thereby prevent the collision between stator 21 and rotor 22 that the eccentric load owing to running shaft 23 causes.
Stator lasmination 25 heart place therein is provided with rotor insertion hole 25b, and this rotor insertion hole 25b has positive toroidal.In addition, a plurality of outstanding standing part 25c and otch passage 25d alternately are formed on the external peripheral surface place of stator lasmination 25, so that form gas channel F with housing 10.
Preferably; Through making the circumferential length between the outstanding standing part 25c form the circumferential length that equals between the otch passage 25d; These outstanding standing part 25c and otch passage 25d form with identical distance and are mutually symmetrical, thereby make the minimizing deformation of stator lasmination 25 when shrink-fit.
As shown in Figure 3, the ratio (d1/w1) between the width (w1) of the diameter of rotor insertion hole 25b (d1) and steel plate forms 2.1 or greater than 2.1.In addition, outstanding standing part forms feasible: two ends at outstanding standing part can be 15 °~35 ° to the angle between the center of stator 21.Preferably, at least two otch passage 25d form feasible: the circumferential length of each otch passage with (QA 0) with the circumferential length of each outstanding standing part with (QA 1) between ratio (QA 0/ QA 1) be 0.2~0.8.
Field coil 26 adjoining lands are wrapped on each salient pole 25a of stator lasmination 25, and implement field coil 26 through on the external peripheral surface of copper wire, forming to have greater than the enamel coating of about 120 ℃ separation transition temperature (separation transition temperature).Preferably, dielectric film is between the inner circumferential surface that contacts field coil of the external peripheral surface of field coil and stator lasmination 25, and this dielectric film is formed by the crystalline plastics film that has greater than about 50 ℃ separation transition temperature.
Rotor 22 comprises: rotor pack 27 correspondingly forms this rotor pack 27 when a plurality of sheet metal of lamination axially; And upper head plate 28A and lower end sheet 28B, upper head plate 28A and lower end sheet 28B are separately positioned on the place, top and bottom of rotor pack 27.
Steel plate is provided with the axis hole that is used for inserting through shrink-fit running shaft 23.
As shown in Figure 4, steel plate is provided with a plurality of flux shield layer 27a that along the circumferential direction penetrate formation with radial direction, and each flux shield layer 27a has round-shaped.Width (t1) from the external peripheral surface of steel plate to each end of flux shield layer 27a is uniform.The width of flux shield layer 27a (t2) along radial direction and between flux shield layer 27a the width (t3) along radial direction increase towards the center.
Shown in Fig. 7 and 8, rotor pack 27 preferably has the air gap (t4) from the about 0.4~0.8mm of inner circumferential surface of stator lasmination 25, thereby improves the efficient of motor.
End plate forms the thickness (t5) with about 1~4mm respectively up and down.In addition; Promptly after a while the gap (t6) between the upper end of the upper bearing (metal) plate of explanation is formed 2~6mm at the lower surface of lower end sheet 28B and main bearing 32, thereby reduce the whole length of rotor and prevent the collision between stator 21 and rotor 22 that the eccentric load owing to running shaft 23 causes.
Along the circumferential direction eccentric at a certain angle counterweight 29 is formed on upper head plate 28A outside integratedly or as reprocessing.Preferably, the thickness of counterweight 29 (t7) forms the twice less than the thickness (t5) of upper head plate 28A, thereby improves the reliability of motor.
End plate 28A and 28B can form the flux shield layer 27a that covers rotor 22 fully up and down, perhaps can form the flux shield layer 27a that partly covers rotor 22, thereby form the path along the vertical direction of rotor 22.
Running shaft 23 forms has circular cross-section so that shrink-fit in the axis hole of rotor 22, and penetrates and forms oilhole 23a in running shaft 23.Be used for that oil is sucked housing 10 inner oilier 23b and be arranged on locating bottom of oilhole 23a.
Shrink-fit that can be through external diameter or the shrink-fit through internal diameter are connected to running shaft 23 on the axis hole of rotor 22.Under the situation of the shrink-fit of internal diameter, can make the minimizing deformation of the external peripheral surface of more weak relatively rotor 22.
Running shaft 23 is provided with eccentric part 23c in the external peripheral surface place down at it, is used to connect rolling piston 34.In addition, eccentric part 23c forms feasible: the ratio between the diameter (D2) of diameter except that eccentric part (D1) and eccentric part can be 16: 20~18: 30.Preferably, eccentric part forms and makes that its offset can be in the scope of 1.5~5mm.
Shown in Fig. 1 to 8, compression member 30 comprises: cylinder 31, and this cylinder 31 is arranged in the housing 10, and has annular shape; Main shaft board (main bearing) 32 and auxiliary-bearing plate (supplementary bearing) 33, this main shaft board (main bearing) 32 is used to cover the upper and lower end parts of cylinder 31 with this auxiliary-bearing plate (supplementary bearing) 33, and is used for to form the mode supporting rotating shaft 23 of inner space; Rolling piston 34, this rolling piston 34 is rotatably connected on the eccentric part 23c of running shaft 23, and in the place's orbiting of the inner space of cylinder 31, is used for compressed refrigerant; Blade 35, this blade 35 are connected to and make blade 35 to move along the radial direction of cylinder 31 on the cylinder 31 and the external peripheral surface of touch scrolling piston 34, are used for the inner space of cylinder 31 is divided into suction chamber and pressing chamber; Expulsion valve 36, this expulsion valve 36 are connected to openable mode on the end of exhaust port 32a of the intermediate portion office that is arranged on main bearing 32, are used to limit the refrigeration agent of discharging from pressing chamber; And silencing apparatus 37, this silencing apparatus 37 is used to admit expulsion valve 36, thereby is fixed on the upper surface of main bearing 32.
Cylinder 31 has annular shape, and the upper and lower sides of this annular shape opens wide.Main bearing 32 is provided with the axis hole that is used for supporting rotating shaft 23 in their center separately respectively with supplementary bearing 33, and forms and have disc-shape to cover the upper and lower sides that opens wide of cylinder 31.Cylinder 31, main bearing 32 and supplementary bearing 33 are formed by gray cast iron, and rolling piston 34 is formed by the alloy of molybdenum, nickel and chromium, and blade 35 is formed by the high speed steel that experiences nitriding process, thereby make the minimise wear of compression member.
Main bearing 32 is provided with exhaust port 32a, and the refrigeration agent that this exhaust port 32a is used for compressing the compression volume at cylinder 31 is discharged.Preferably, the diameter (D3) of exhaust port 32a is 5mm when the volume of the pressing chamber of cylinder 31 is 6cc, and this diameter (D3) is 8mm when the volume of compression volume is 9cc, thus discharging refrigerant stably.
Silencing apparatus 37 is connected on the upper surface of main bearing 32 through bolt.For the stability of motor, the upper surface of silencing apparatus 37 and from stator 21 gap (t8) between the outstanding downwards field coils 26 greater than 3.2mm.
With the operation of explanation according to rotary compressor of the present invention.
When the stator 21 of drive motor 20 was given in power supply and therefore make rotor 22 rotations, running shaft 23 was with rotor 22 rotations, and therefore the rotating force with drive motor 20 is delivered to compression member 30.Therefore, rolling piston 34 is rotation prejudicially in cylinder 31, and refrigeration agent is inhaled in the suction chamber through the refrigerant suction pipe SP that is connected on the cylinder 31.Then, thus refrigeration agent is compressed through exhaust port 32a and is discharged in the housing 10.Repeat above process.
As drive motor 20, use be synchronous reluctance motor, this synchronous reluctance motor be used for through by reluctance torque along making the rotation synchronously of the minimized direction of magnetic resistance produce rotating force.Therefore, thus the slippage between stator 21 and rotor 22 reduces to strengthen the function of drive motor 20 greatly.In addition, when induction current flows into rotor 22, thereby the thermal loss that comes from rotor 22 reduces to improve the efficient of motor 20.
Using with refrigeration agent has the oil of fabulous mixed characteristic, thereby prevents " two separation " phenomenon, and this phenomenon is that refrigeration agent is separated from each other in the slide part office of compression member 30 with oil.Therefore, can reduce the frictional loss and the wearing and tearing of compression member.
For to the steady fuel feeding of compression member, with oil with than high highly-filled in housing 10 of cylinder 31.Fully realize the upper space of housing 10, make the refrigeration agent of discharging after the inner space of housing is separated from each other, can not leak into refrigeration cycle with oil from compression member.The wearing and tearing of the compression member that therefore, can prevent to cause owing to leakage of oil.
Through preventing that rotor length from excessively increasing, can prevent the collision between stator 21 and rotor 22 that the eccentric load owing to running shaft 23 causes.
When the stator shrink-fit is in housing, evenly shrink along radial direction in order to make stator lasmination, stator lasmination is symmetrically formed, and the length of the width of stator lasmination and outstanding standing part forms the certain intensity of maintenance.Therefore; The rotor insertion hole 25b of stator lasmination keeps positive toroidal; And the air gap between stator and rotor is kept equably, thereby prevents the collision between the rotor and stator when rotor rotates, so strengthens the function and the reliability of drive motor and compressor.
Implement field coil 26 through on the external peripheral surface of copper wire, forming enamel coating, thus prevent because hydrolysis, crack, softening, expand and puncture the voltage reduction that causes.In addition, by the film formed dielectric film of crystalline plastics between the inner circumferential surface of the salient pole of field coil and stator 21, thereby prevent the reduction of tensile strength and electrical insulation characteristics, thereby improve the reliability of drive motor.
Rotor pack 27 has a plurality of steel plates.The external peripheral surface of each flux shield layer 27a from its each end to steel plate has identical width (t1), thereby is convenient to processing.
The width of flux shield layer 27a (t2) and between flux shield layer 27a, increasing towards the center along the width (t3) of radial direction along radial direction, thus make the minimizing deformation of steel plate when running shaft 23 shrink-fit.
To the rotor explanation of rotary compressor according to another embodiment of the present invention as follows.
In the above-described embodiments, as shown in Figure 4, the width (t1) from each end of flux shield layer to the external peripheral surface of steel plate is uniform.But according to another embodiment shown in Figure 5, the width (t1) from each end of flux shield layer to the external peripheral surface of steel plate increases towards the center.
In the above-described embodiments, shown in Figure 4 and 5, each flux shield layer forms a through hole.But,, be provided for connecting the internal surface of flux shield layer 27a and the bridge along radial direction of outer surface according to another embodiment shown in Figure 6.At this, the width (t1) between the end of each flux shield layer and the external peripheral surface of steel plate is as shown in Figure 4 to form evenly, or as shown in Figure 5 forming differs from one another.
The second and the 3rd embodiment's housing 10, drive motor 20 and compression member 30 are similar to housing 10, drive motor 20 and the compression member 30 according to first embodiment according to the present invention, therefore will omit their details.
When the width (t1) between the external peripheral surface of end and the steel plate at each flux shield layer as shown in Figure 5 increases towards the center; Perhaps when the intermediate portion office at each flux shield layer as shown in Figure 6 forms bridge; The intensity of steel plate improves, and therefore prevents the thermal distortion of steel plate.
A kind of double cylinders rotary compressor can be applicable to the present invention.
In the above-described embodiments, the single cylinder rotary compressor with a cylinder has been described.But as shown in Figure 9, first cylinder 31 and second cylinder 41 arranged along the vertical direction can have first compression member 30 and second compression member 40 respectively.Housing 10, drive motor 20, first compression member 30 and second compression member 40 can be shone present appearance and be applied to double cylinders rotary compressor.
Under the situation of first compression member 30 and second compression member 40, be connected to sucking pipe SP1 and SP2 on the inlet of cylinder 31 and 41 are connected to refrigeration cycle through an accumulator A refrigeration connecting tube P.But shown in figure 10, sucking pipe SP1 and SP2 can be directly connected to refrigeration connecting tube P and need not accumulator.
Each intermediate portion of sucking pipe SP1 and SP2 is crooked with different curvature R1 and R2, thereby is connected to the cylinder 31 and 41 of compression member 30 and 40.Preferably, away from the curvature of the second sucking pipe SP2 that is connected to second compression member 40 of accumulator A curvature, thereby strengthen the reliability of sucking pipe greater than the first sucking pipe SP1.
In the double cylinders rotary compressor with cylinder 31 and 41, the length of housing 10 is longer than the length of single cylinder rotary compressor.Therefore, the thickness (t9) that is used for the substrate 1 of support housing 10 on installation surface has to increase.For example, if the length L 1 of housing 10 greater than the twice of external diameter (D4), then forms 2.6~4.0mm for the stability of compressor with the thickness (t9) of substrate 1.
When rotary compressor according to the present invention is applied to air conditioner, reduced the thermal loss that the slippage owing to drive motor causes, therefore strengthened the function of rotary compressor and air conditioner.In addition, reduced the loss that causes owing to the rotor radiation, the function that has therefore strengthened this rotary compressor and had the air conditioner of this rotary compressor.
In addition, when the refrigeration agent that uses eco-friendly, use the oil that is described below: this oil easily with refrigerant mixed to eco-friendly, have excellent abrasion resistance and lubrication property, and not serious insulating material, a drying material etc. of influencing.Therefore, the reliability that has strengthened this rotary compressor and had the air conditioner of this rotary compressor.In addition, owing to used the refrigeration agent and this oily drive motor that is suitable for eco-friendly, so the function that has strengthened this compressor and had the air conditioner of this compressor.
Because the present invention can implement with some forms under the situation that does not deviate from its spirit or essential characteristic; So it should also be understood that: unless otherwise mentioned; The foregoing description is not limited by any details of above-mentioned explanation; But should be interpreted as largo in liking the spirit and scope that claim limits enclosed that therefore, the accompanying claims intention comprises variation and the equivalent of modification or these boundaries in all boundaries that fall into claim.

Claims (33)

1. rotary compressor comprises:
Housing, this housing has the sealed inner that is used to fill a certain amount of oil, and sucking pipe and outlet pipe are connected on this housing;
Drive motor, this drive motor are installed in the inner space of said housing;
At least one cylinder, said at least one cylinder are fixed on the place, inner space of said housing;
A plurality of shaft bearing plates, these shaft bearing plates cover said cylinder, thereby form compression volume, are used to support the running shaft of said drive motor;
At least one rolling piston, said at least one rolling piston carries out orbiting in the compression volume of said cylinder, is connected on the eccentric part of said running shaft, and the inner circumferential surface of the said cylinder of linear contact, be used to make flow of refrigerant; And
At least one blade, said at least one blade touch scrolling piston is used for said compression volume is divided into suction chamber and pressing chamber,
Wherein said drive motor comprises:
Stator, this stator correspondingly forms when a plurality of first steel plate of lamination, thereby is inserted in the inner circumferential surface of said housing, and said first steel plate has a plurality of salient poles, on these salient poles, twines field coil;
Rotor; This rotor correspondingly forms when a plurality of second steel plate of lamination; Thereby can be rotatably set in the said stator; Said second steel plate is formed with a plurality of flux shield layers, wherein said flux shield layer along the width of radial direction and between said flux shield layer the center along the width of this radial direction towards said drive motor increase; And
Running shaft, this running shaft is connected to said centre of rotor.
2. rotary compressor according to claim 1, wherein said rotor have at least one and are used to connect the internal surface of said flux shield layer and the bridge of outer surface.
3. rotary compressor according to claim 1, wherein the width from the external peripheral surface of said second steel plate to each end of said flux shield layer differs from one another.
4. like each described rotary compressor in the claim 1 to 3; The stator of wherein said drive motor is provided with the rotor insertion hole that is used to insert said rotor; Be of similar shape with a plurality of outstanding standing part of area along the circumferential direction outstanding from the external peripheral surface of said stator; Thereby be attached on the inner circumferential surface of said housing; Be of similar shape and a plurality of otch passages of area along the circumferential direction recessed with identical distance between these outstanding standing parts; Thereby separate with the inner circumferential surface of said housing, and the ratio (d1/w1) between the width (w1) of the diameter (d1) of said rotor insertion hole and said outstanding standing part is 2.1 or greater than 2.1.
5. it is 20 °~30 ° that rotary compressor as claimed in claim 4, wherein said outstanding standing part form the angle that makes between the center of two ends of giving prominence to standing part and said stator.
6. rotary compressor as claimed in claim 4, wherein said otch tunnel-shaped becomes feasible: the circumferential length of each otch passage with (QA 0) with the circumferential length of each outstanding standing part with (QA 1) between ratio (QA 0/ QA 1) be 0.3~0.7.
7. like each described rotary compressor in the claim 1 to 3, wherein said oil is comprised in the said housing with the mode higher than the top side of said cylinder.
8. like each described rotary compressor in the claim 1 to 3, wherein the volume from the upper end of the stator of said drive motor to the lower surface of the upper end of said housing forms greater than 5000mm 3
9. like each described rotary compressor in the claim 1 to 3; The silencing apparatus that wherein is used for attenuate acoustic noise is installed in the shaft bearing plate place of going up most, and the upper end of this silencing apparatus and from said stator the gap between the outstanding downwards said field coil greater than 3.2mm.
10. like each described rotary compressor in the claim 1 to 3, wherein the refrigeration connecting tube of refrigeration cycle is directly connected to the inlet of said sucking pipe.
11. rotary compressor as claimed in claim 10, wherein when said cylinder was implemented with a plurality of forms, said sucking pipe was connected to each cylinder separately, and these a plurality of sucking pipes are connected to a refrigeration connecting tube.
12. like each described rotary compressor in the claim 1 to 3, wherein said running shaft forms feasible: the ratio between the diameter of diameter except that said eccentric part and said eccentric part can be 16: 20~18: 30.
13. like each described rotary compressor in the claim 1 to 3, the offset of the eccentric part of wherein said running shaft is in the scope of 1.5~5mm.
14. like each described rotary compressor in the claim 1 to 3; Wherein said cylinder and said shaft bearing plate are formed by gray cast iron; Said rolling piston is formed by the alloy of molybdenum, nickel and chromium, and said blade is formed by the high speed steel that experiences nitriding process.
15. like each described rotary compressor in the claim 1 to 3; Wherein said shaft bearing plate is provided with exhaust port; This exhaust port is used for the refrigeration agent discharge of compress at the compression volume of said cylinder, and when the volume of the compression volume of said cylinder was 6cc, the diameter of said exhaust port was 5mm; When the volume of said compression volume was 9cc, the diameter of said exhaust port was 8mm.
16. like each described rotary compressor in the claim 1 to 3, wherein when said cylinder was implemented with a plurality of forms, these cylinders had the capacity that differs from one another.
17. like each described rotary compressor in the claim 1 to 3; Wherein when said cylinder is implemented with a plurality of forms; If, then being used for the thickness of the substrate of the said housing of support on installation surface greater than the twice of the external diameter of said housing, the length of said housing forms 2.6~4.0mm.
18. like each described rotary compressor in the claim 1 to 3, the stator of wherein said drive motor and rotor have the air gap of 0.4~0.8mm between them.
19. like each described rotary compressor in the claim 1 to 3; The end plate up and down of wherein said second steel plate forms the thickness with about 1~4mm respectively, and the gap between the upper end of the lower surface of said lower end sheet and the shaft bearing plate gone up most forms 2~6mm.
20. rotary compressor as claimed in claim 19, wherein along the circumferential direction eccentric at a certain angle counterweight is formed on the outside of said upper head plate, and the thickness of this counterweight forms the twice less than the thickness of said upper head plate.
21. rotary compressor as claimed in claim 19, wherein along the circumferential direction eccentric at a certain angle counterweight are connected to the outside of said upper head plate during assembly process in the back, and the thickness of this counterweight forms the twice less than the thickness of said upper head plate.
22. rotary compressor as claimed in claim 19, an end plate in the wherein said end plate forms and covers said flux shield layer fully.
Partly cover said flux shield layer 23. rotary compressor as claimed in claim 19, wherein said end plate form, thereby form the path along the vertical direction of said rotor.
24. like each described rotary compressor in the claim 1 to 3, wherein said drive motor is assembled into feasible: the center with said stator is a benchmark, and the height difference of said centre of rotor can be in the scope of-2~3mm.
25. like each described rotary compressor in the claim 1 to 3, wherein the length from the upper end of the stator of said drive motor to the lower surface of the shaft bearing plate of going up most is approximately 110~140mm.
26. like each described rotary compressor in the claim 1 to 3, wherein said running shaft is assembled to said rotor through the shrink-fit of internal diameter.
27. like each described rotary compressor in the claim 1 to 3, wherein said drive motor is configured to by reluctance torque along the minimized direction of magnetic resistance is rotated synchronously.
28. like each described rotary compressor in the claim 1 to 3; The fluid that wherein will in said compression volume, compress is hydrogen fluorohydrocarbon (HFC) or the basic refrigeration agent of HCFC (HCFC); And wherein under the situation of the basic refrigeration agent of hydrogen fluorohydrocarbon (HFC), use fatty acid ester oil, and under the situation of the basic refrigeration agent of HCFC (HCFC), use fatty acid mineral oil.
29. rotary compressor as claimed in claim 28; Wherein said fatty acid ester oil has the viscosity of 2~70cSt under 40 ℃ temperature; The viscosity that under 100 ℃ temperature, has 1~9cSt; And ester coupling at least twice in a molecule, and said fatty acid mineral oil has the viscosity of 32~68cSt under 40 ℃ temperature, and ester coupling at least twice in a molecule.
30. like each described rotary compressor in the claim 1 to 3, wherein said a plurality of flux shield layers penetrate said second steel plate that is formed with these flux shield layers.
31. like each described rotary compressor in the claim 1 to 3, wherein dielectric film is arranged between the stator and said field coil of said drive motor, this dielectric film is formed by the crystalline plastics film that has greater than 50 ℃ separation transition temperature.
32. like each described rotary compressor in the claim 1 to 3, wherein said field coil comprises enamel coating, this enamel coating has the separation transition temperature greater than 120 ℃.
33. an air conditioner, this air conditioner have like each described rotary compressor in the claim 1 to 3.
CN2006101724129A 2006-12-26 2006-12-26 Gyration type compressor and air-conditioner with the same Expired - Fee Related CN101210560B (en)

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CN106460841B (en) * 2014-04-03 2019-07-12 特灵国际有限公司 Permanent magnet motor
CN106407611B (en) * 2016-11-03 2019-04-26 瑞智(青岛)精密机电有限公司 A kind of Rotary Compressor clump weight design and calculation method
JP6558346B2 (en) * 2016-11-10 2019-08-14 ダイキン工業株式会社 Compressor capable of suppressing refrigeration oil discharge

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