CN106460847A - Compressor and refrigeration cycle device - Google Patents
Compressor and refrigeration cycle device Download PDFInfo
- Publication number
- CN106460847A CN106460847A CN201580014126.7A CN201580014126A CN106460847A CN 106460847 A CN106460847 A CN 106460847A CN 201580014126 A CN201580014126 A CN 201580014126A CN 106460847 A CN106460847 A CN 106460847A
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- Prior art keywords
- compressor
- electric element
- stator coil
- cold
- wire
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/803—Electric connectors or cables; Fittings therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Windings For Motors And Generators (AREA)
Abstract
A compressor (12) is provided with: a sealed container (20); a compressing element (30); and an electric element (40). A suction pipe (21) for drawing in a refrigerant that includes HFO-1123 and a discharge pipe (22) for discharging the refrigerant are attached to the sealed container (20). The compressing element (30) is accommodated inside the sealed container (20). The compressing element (30) compresses the refrigerant that is drawn into the suction pipe (21). The electric element (40) is installed inside the sealed container (20) at a location through which the refrigerant flows after having been compressed in the compressing element (30) and prior to being discharged from the discharge pipe (22). The electric element (40) drives the compressing element (30). The electric element (40) is a concentrated winding motor.
Description
Technical field
The present invention relates to a kind of compressor and refrigerating circulatory device.
Background technology
In recent years, based on the viewpoint preventing global warming, seeking to cut down greenhouse gases.With regard to kind of refrigeration cycle such as air-conditionings
Cold-producing medium used by device, is also inquiring into the cold-producing medium reducing global warming coefficient (GWP) further.Now, it is widely used in
The GWP of the R410A on air-conditioning is 2088, is very big numerical value.In recent years the GWP of difluoromethane (R32) starting to import is
675, it is also sizable numerical value.
Low GWP cold-producing medium has carbon dioxide (R744：GWP=1), ammonia (R717：GWP=0), propane (R290：GWP=
6), 2,3,3,3- tetrafluoropropene (R1234yf：GWP=4), 1,3,3,3- tetrafluoropropene (R1234ze：GWP=6) etc..
, due to there is problems with it is difficult to be applied to common air-conditioning in these low GWP cold-producing mediums.
R744：Because working pressure is very high, there is a problem of how guaranteeing pressure.Further, since critical temperature is very
, also there is the performance how guaranteeing air-conditioning purposes in low 31 DEG C.
R717：Due to having strong toxicity, it is present to ensure that safe problem.
R290：Due to having inflammability, it is present to ensure that safe problem.
R1234yf/R1234ze：Because working pressure is low, volume flow quantitative change is big, exists because the pressure loss increases and draws
The problem of the degraded performance rising.
Can solve the problem that the cold-producing medium of described problem has 1,1,2- trifluoro-ethylene (HFO-1123) (referring for example to patent documentation
1).Particularly this cold-producing medium has advantages below.
Because working pressure is high, the volume flow of cold-producing medium is little, and therefore the pressure loss is little, thus it is easy to ensure that performance.
GWP, less than 1, has high superiority in global warming countermeasure.
Citation
Patent documentation 1：International Publication No. 2012/157764
Non-patent literature 1：Andrew E.Feiring, Jon D.Hulburt, " Trifluoroethylene
Deflagration ", Chemical＆Engineering News (22Dec 1997) Vol.75, No.51, pp.6
Content of the invention
Invent problem to be solved
There is problem below in HFO-1123.
(1) in the state of high temperature, high pressure, when ignition energy is applied to it may occur that blast is (referring for example to non-patent
Document 1).
(2) life-span in an atmosphere was very short, less than 2 days.There is the low worry of the chemical stability of kind of refrigeration cycle class.
HFO-1123 to be made is applied to refrigerating circulatory device it is necessary to solve the problems, such as above.
With regard to problem (1), the chain of clear and definite dismutation reaction can cause blast to occur.Occur this phenomenon condition have following
2 points.
(1a) inside of refrigerating circulatory device (particularly compressor) produces ignition energy (high-temperature portion), causes disproportionation anti-
Should.
(1b) in the state of high temperature, high pressure, dismutation reaction can occur chain and spread.
With regard to problem (2) it is necessary to guarantee the chemical stability of kind of refrigeration cycle class.
It is an object of the invention to preventing the blast for example causing within the compressor due to the dismutation reaction of HFO-1123.
The purpose of the present invention particular in that avoid condition (1a) establishment.
For solving the scheme of problem
A kind of form of compressor involved in the present invention, has following structure：
Container, described container is provided with the suction tube for sucking the cold-producing medium containing 1,1,2- trifluoro-ethylene and is used for
Discharge the discharge pipe of described cold-producing medium, and inside is discharge pressure environment；
Compressing member, described compressing member is accommodated in described container, compresses the described refrigeration being sucked by described suction tube
Agent；
Concentratred winding formula electric element, described concentratred winding formula electric element is accommodated in described container, and drives institute
State compressing member.
The effect of invention
In the present invention, the cold-producing medium that will contain 1,1,2- trifluoro-ethylene is used for compressor.Electric element using concentrate around
Group formula electric element, is together accommodated in container with compressing member.Different from distribution takeup type electric element, in concentratred winding formula
In electric element, the potential difference being wrapped between the coil on 1 tooth of stator is little.So, the coil on 1 tooth is
Make to be short-circuited, also there is no danger on fire.Therefore, it is possible to prevent from being caused by the dismutation reaction of HFO-1123 in compressor
Blast.
Brief description
Fig. 1 is the loop diagram of the refrigerating circulatory device (during refrigeration) in embodiment 1
Fig. 2 is the loop diagram of the refrigerating circulatory device (when heating) in embodiment 1
Fig. 3 is the longitudinal sectional view of the compressor in embodiment 1
Fig. 4 is the wiring diagram of the stator coil of the electric element provisioned in the compressor in embodiment 1
Fig. 5 is the wire of the electric element provisioned in the compressor representing in embodiment 1 and the figure of jumper
Fig. 6 is insertion terminal and the cluster end of the wire of the electric element provisioned in the compressor representing in embodiment 1
The figure at end
Fig. 7 is the wire of the electric element provisioned in the compressor representing in embodiment 1 and the figure of jumper construction
Fig. 8 is the figure of the insertion terminal of the wire of the electric element provisioned in the compressor representing in embodiment 2
Fig. 9 is the figure of the part construction of the base bearing provisioned in the compressor representing in embodiment 3
Specific embodiment
Hereinafter, using accompanying drawing, embodiments of the present invention are illustrated.
Embodiment 1
Fig. 1 and Fig. 2 is the loop diagram of the refrigerating circulatory device 10 in present embodiment.Fig. 1 represents cold-producing medium during refrigeration
Loop 11a.Fig. 2 represents refrigerant loop 11b when heating.
In the present embodiment, refrigerating circulatory device 10 is air-conditioning.Even if in addition, refrigerating circulatory device 10 is beyond air-conditioning
Equipment (as heat pump circulating device) it is also possible to use present embodiment.
In Fig. 1 and Fig. 2, refrigerating circulatory device 10 has refrigerant loop 11a, 11b that cold-producing medium is circulated.
In refrigerant loop 11a, 11b, connect compressor 12, cross valve 13, outdoor heat converter 14, expansion valve 15,
Indoor heat converter 16.Compressor 12 compression refrigerant.The flowing side of cross valve 13 switching cold-producing medium in refrigeration and when heating
To.Outdoor heat converter 14 is as an example of the 1st heat exchanger.During refrigeration, outdoor heat converter 14 is transported as condenser
Make, make the cold-producing medium heat release compressed by compressor 12.When heating, outdoor heat converter 14 operates as vaporizer, outdoor empty
Gas and carry out heat exchange to heat cold-producing medium between the dilated cold-producing medium of expansion valve 15.Expansion valve 15 is as expansion structure
One example.Expansion valve 15 makes the cold-producing medium after condenser heat rejection expand.Indoor heat converter 16 is as the 2nd heat exchanger
One example.When heating, indoor heat converter 16 operates as condenser, makes the cold-producing medium heat release compressed by compressor 12.System
When cold, indoor heat converter 16 operates as vaporizer, indoors air and entering between the dilated cold-producing medium of expansion valve 15
Row heat exchange is heating cold-producing medium.
Refrigerating circulatory device 10 also has control device 17.
For example, control device 17 is microcomputer.Although in figure merely illustrates control device 17 and the company of compressor 12
Connect, but control device 17 is not connected only to compressor 12, be also attached to each element being connected with refrigerant loop 11a, 11b.Control
Device 17 processed is monitored the state of each element and is controlled.
In the present embodiment, as the cold-producing medium of circulation in refrigerant loop 11a, 11b, using containing 1,1,2- tri-
The cold-producing medium of fluorothene (HFO-1123).This cold-producing medium both can be the content of HFO-1123 monomer or HFO-1123
Mixture for more than 1%.As long as that is, be used in the cold-producing medium of refrigerating circulatory device 10 HFO-1123 content be 1～
100%, just it is suitable for present embodiment, and effect described later can be obtained.
As suitable cold-producing medium, it is possible to use the mixture of HFO-1123 and difluoromethane (R32).For example, it is possible to make
With the mixture containing 40wt%HFO-1123,60wt%R32.Any one of HFO-1123 and R32 in this mixture
Or two kinds can be substituted for other materials.HFO-1123 can change HFO-1123 and the mixing of other vinyl fluorohydrocarbon into
Thing.Fluorothene (HFO-1141) can be used as other vinyl fluorohydrocarbons, vinylidene fluoride (HFO-1132a), instead
Formula -1,2- difluoroethylene (HFO-1132 (E)), cis -1,2- difluoroethylene (HFO-1132 (Z)).R32 can change 2 into, 3,3,
3- tetrafluoropropene (R1234yf), anti-form-1,3,3,3- tetrafluoropropene (R1234ze (E)), cis -1,3,3,3- tetrafluoropropene
(R1234ze (Z)), 1,1,1,2- tetrafluoroethane (R134a), 1,1,1,2, any of which thing such as 2- pentafluoroethane (R125)
Matter.Or, R32 can change into R32, R1234yf, R1234ze (E), R1234ze (Z), any 2 kinds in R134a, R125 with
The mixture that upper material is constituted.
No matter using which kind of cold-producing medium it is necessary to consider described problem (1).Described condition (1a) particularly must be avoided
Establishment.I.e. it is necessary to exclusion refrigerating circulatory device 10 (particularly compressor 12) inside produce ignition energy (high-temperature portion) and
The reason cause dismutation reaction.
Fig. 3 is the longitudinal sectional view of compressor 12.In addition, this in figure eliminates the hatching representing section.
In the present embodiment, compressor 12 is the revolution type compressor of single inflator.Even in addition, compressor more than 12 gas
The revolution type compressor of cylinder or screw compressor, as long as the inside of container is (the i.e. discharge with cold-producing medium of discharge pressure environment
Degree of pressure identical high pressure conditions), just can be suitable for present embodiment.
In figure 3, compressor 12 has hermetic container 20, compressing member 30, electric element 40 and axle 50.
Hermetic container 20 is as an example of container.Hermetic container 20 is provided with the suction tube 21 for sucking cold-producing medium
With the discharge pipe 22 for discharging refrigerant.
Compressing member 30 is accommodated in hermetic container 20.Specifically, compressing member 30 is arranged at the interior of hermetic container 20
Side lower part.The cold-producing medium that compressing member 30 sucks to suction tube 21 is compressed.
Electric element 40 is also accommodated in hermetic container 20.Specifically, electric element 40 is arranged in hermetic container 20
Discharge the position passed through before in the cold-producing medium being compressed by compressing member 30 from discharge pipe 22.That is, electric element 40 is in airtight appearance
The inner side of device 20 is arranged at the top of compressing member 30.Electric element 40 drives compressing member 30.Electric element 40 be concentrate around
Group formula motor.
Contain the refrigerator oil of the sliding part of lubrication compressing member 30 in the bottom of hermetic container 20.As fridge
Oil, it is possible to use such as POE (polyol ester), PVE (polyvinylether), AB (alkylbenzene).
Hereinafter compressing member 30 is described in detail.
Compressing member 30 has cylinder 31, rotary-piston 32, blade (not shown), base bearing 33 and supplementary bearing 34.
The periphery of cylinder 31 is overlooked generally circular.The gas being internally formed the generally circular space of vertical view of cylinder 31
Cylinder chamber.Cylinder 31 is in direction of principal axis both ends open.
Cylinder 31 is provided with connection cylinder chamber the blade groove (not shown) extending along radial direction.Outside in blade groove
It is formed with the back pressure chamber connecting with blade groove, described back pressure chamber is to overlook generally circular space.
Cylinder 31 is provided with suction inlet (not shown), and described suction inlet sucks gas refrigeration from refrigerant loop 11a, 11b
Agent.Suction inlet is from the outer peripheral face insertion of cylinder 31 to cylinder chamber.
Cylinder 31 is provided with outlet (not shown), and described outlet discharges, from cylinder chamber, the cold-producing medium being compressed.Discharge
Mouth forms otch in the upper surface of cylinder 31.
Rotary-piston 32 is annular in shape.Rotary-piston 32 does eccentric motion in cylinder interior.Rotary-piston 32 is slidably
It is embedded in the eccentric axial portion 51 of axle 50.
Blade be shaped as flat approximately parallelepiped body.Blade is arranged in the blade groove of cylinder 31.Blade passes through setting
Leaf spring in back pressure chamber is constantly pushed on rotary-piston 32.Due to being high pressure in hermetic container 20, compressor 12
When starting running, the back side (i.e. the face of back pressure chamber side) of blade has by the pressure in the pressure and cylinder chamber in hermetic container 20
Difference and the power that causes in effect.Therefore, the purpose of leaf spring is mainly used for the (hermetic container 20 when compressor 12 starts
When interior poor with no pressure in cylinder chamber) blade is pressed on rotary-piston 32.
Base bearing 33 is in substantially inverted T-shape from the side.Base bearing 33 is slidably embedded in main shaft part 52, described master
Axle portion 52 is eccentric axial portion 51 part by the top compared to axle 50.Base bearing 33 blocks cylinder chamber and the blade groove of cylinder 31
Upside.
Supplementary bearing 34 is substantially in T shape from the side.Supplementary bearing 34 is slidably embedded in countershaft portion 53, described countershaft
Portion 53 is eccentric axial portion 51 part on the lower compared to axle 50.Supplementary bearing 34 blocks the cylinder chamber of cylinder 31 and blade groove
Downside.
Base bearing 33 has dump valve (not shown).The outside of base bearing 33 is provided with exhaust silencer 35.By dump valve
The gas refrigerant of the High Temperature High Pressure discharged temporarily enters exhaust silencer 35, is released to airtight appearance from exhaust silencer 35 afterwards
Space in device 20.In addition, dump valve and exhaust silencer 35 are arranged at supplementary bearing 34, or base bearing 33 can also be arranged at
And on both supplementary bearing 34.
Cylinder 31, base bearing 33, the material of supplementary bearing 34 are grey cast-iron, sintered steel, carbon steel etc..Rotary-piston 32
Material is as the steel alloy containing evanohm.The material of blade, for example, can be selected for high-speed tool steel.
Hermetic container 20 be horizontally arranged with absorbing silencer 23.Absorbing silencer 23 is inhaled from refrigerant loop 11a, 11b
Enter the gas refrigerant of low pressure.Absorbing silencer 23 suppresses liquid refrigerant to be directly entered cylinder 31 when liquid refrigerant returns
Cylinder chamber.Absorbing silencer 23 is connected to the suction inlet of cylinder 31 by suction tube 21.The main body of absorbing silencer 23 is passed through
The methods such as welding are fixed on the side of hermetic container 20.
Hereinafter, electric element 40 is described in detail.
In present embodiment, electric element 40 adopts brushless DC (Direct Current) motor.In addition, removing brushless DC
Outside motor (such as induction motor) etc. as electric element 40 when, also can be suitably used for present embodiment.
Electric element 40 has stator 41 and rotor 42.
Stator 41 contacts and is fixed on the inner peripheral surface of hermetic container 20.Rotor 42 across 0.3～1mm about gap setting
Inner side in stator 41.
Stator 41 has stator core 43 and stator coil 44.Stator core 43 makes in the following way, i.e. by thickness
Multiple electromagnetic steel plates for 0.1～1.5mm are punched into the shape of regulation, are laminated vertically, and by the method such as riveting or welding
Fixing.Stator coil 44 passes through insulating element 48 and is wound in stator core 43 with concentrating winding.The material of insulating element 48, optional
With such as PET (polyethylene terephthalate), PBT (polybutylene terephthalate (PBT)), FEP (PEP copolymerization
Thing), PFA (copolymer of perfluoro propyl perfluoroalkyl vinyl ether and politef), PTFE (politef), LCP (liquid crystal gather
Compound), PPS (polyphenylene sulfide), phenol resin etc..Wire 45 is connected with stator coil 44.
The periphery of stator core 43 is formed with multiple otch in a circumferential direction at substantially equal intervals.Each otch is all one
Individual from exhaust silencer 35 to the path of the space expellant gas cold-producing medium in hermetic container 20.Each otch is also all freezing
Machine oil returns to the path of the bottom of hermetic container 20 from electric element 40.
Rotor 42 has rotor core 46 and permanent magnet (not shown).Make process and the stator core of rotor core 46
43 is identical, multiple electromagnetic steel plates that thickness is 0.1～1.5mm is punched into the shape of regulation, is laminated vertically, and by riveting
Or welding etc. method fix.Permanent magnet insertion is formed at the multiple patchholes on rotor core 46.As permanent magnet, can make
With such as ferrite magnet, rare earth element magnet etc..
Multiple through holes of insertion on substantially axial are formed with rotor core 46.Otch phase with stator core 43
With each through hole is all the logical of a gas refrigerant released to the space in hermetic container 20 from exhaust silencer 35
Road.
The top of hermetic container 20 is provided with the power supply terminal 24 (such as glass terminal) being connected with external power source.Power end
Son 24 can be fixed on hermetic container 20 by the such as method such as welding.Power supply terminal 24 is connected with the wire from electric element 40
45.
At the top of hermetic container 20, discharge pipe 22, the axial both ends open of described discharge pipe 22 are installed.From compression unit
Part 30 expellant gas cold-producing medium, the refrigerant loop that the space in hermetic container 20 is discharged to the outside by discharge pipe 22
11a、11b.
Running to compressor 12 illustrates below.
Pass through stator 41 supply electric power that wire 45 is electric element 40 from power supply terminal 24.Thus, electric element 40
Rotor 42 rotates.By the rotation of rotor 42, the axle 50 being fixed on rotor 42 rotates.With the rotation of axle 50, compressing member 30
The cylinder 31 in compressing member 30 for the rotary-piston 32 cylinder interior eccentric rotary.The blade of compressing member 30 is by cylinder 31 He
Space between rotary-piston 32 is divided into two parts.With the rotation of axle 50, the volume in this 2 spaces changes.One
In the space on side, volume gradually expands, thus sucking cold-producing medium from absorbing silencer 23.In the space of another side, volume by
Tapered little, thus gas refrigerant therein is compressed.Gas compressed cold-producing medium is from exhaust silencer 35 to hermetic container
Space in 20 is once discharged.The gas refrigerant being discharged, by electric element 40, from the top positioned at hermetic container 20
Discharge pipe 22 is discharged to outside hermetic container 20.
Present embodiment is in order to suppress the dismutation reaction of cold-producing medium it is necessary to from refrigerating circulatory device 10 (particularly compressor
12) inside exclusion ignition energy (high-temperature portion).The temperature that dismutation reaction starts is probably more than 1000 DEG C.Generally kind of refrigeration cycle
The inside of device 10 will not produce the high temperature of this degree.However, the inside of (during fault) compressor 12 may be produced when abnormal
The at a relatively high high temperature of life.Particularly it is necessary to prevent at the part of inner side being exposed to high pressure and capacious hermetic container 20
Cause dismutation reaction.
In compressor 12, as being possible to produce the phenomenon of high temperature in exception, have due to electronics the reason to be considered
Short circuit between the out-phase of part (part of electric element 40 or the part being electrically connected to electric element 40) and sending out of causing
Heat, the spark being produced due to the loose contact of electric wiring etc..
Fig. 4 is the wiring diagram of the stator coil 44 of electric element 40.
In the diagram, stator core 43 is formed with multiple teeth 61.The stator coil 44 of 3 phases be wrapped around on these teeth 61.1
Single-phase stator coil 44 be wrapped around on individual tooth 61.The stator coil 44 of out-phase be wrapped around on adjacent tooth 61.
It is formed with gap 62 between adjacent tooth 61.In a gap 62, vacate between the stator coil 44 of out-phase
Gap 63.Therefore, the stator coil 44 of out-phase will not contact with each other.
The overlay film of stator coil 44 may be damaged to during stator coil 44 winding.And, stator during compressor 12 operating
Rub between coil 44, destroy the overlay film of stator coil 44 sometimes.Such a overlay film damages and broken, is likely to result in phase
The stator coil 44 of near position is mutually conducted.In the case of distribution takeup type motor, current potential differs determining of larger out-phase
Subcoil is wound on 1 tooth.In addition, at 1 gap, the stator coil of out-phase is close to each other.Therefore, the determining of close positions
If subcoil 44 conducting, produce spark, probability high-temperature portion is very high.In this regard, present embodiment employ concentration around
Group formula motor is as electric element 40.As described above, the only roughly the same homophase stator coil 44 of current potential is wound in 1 tooth 61
On.Therefore, even if the stator coil of close positions 44 conducting, spark will not also be produced.And, in 1 gap 62, out-phase
Stator coil 44 is located at across the detached position in gap 63.Therefore, the stator coil 44 of out-phase does not turn on.Therefore, this reality
The probability that high-temperature portion in the mode of applying is very low.
During compressor 12 work, by the gas refrigerant of electric element 40 not only through being formed on rotor core 46
Multiple through holes, the multiple otch being formed on stator core 43, also extended through between the gap 62 containing stator core 43
Gap.Through the cold-producing medium in gap 62, by the vicinity of stator coil 44.The stator coil 44 of the position passed through positioned at cold-producing medium is led
Logical, produce high temperature at this, the dismutation reaction of cold-producing medium may be caused.But as it was previously stated, in present embodiment, even if gap
Close stator coil 44 in 62 turns on it is also difficult to high-temperature portion.Therefore, it is possible to suppress the discrimination of the cold-producing medium through gap 62
Change reaction.
Fig. 5 is to represent the wire 45 of electric element 40 and the figure of jumper 47.Fig. 6 is the insertion terminal 71 representing wire 45
And the figure of cluster terminal 72.
In Figure 5, the stator coil 44 of electric element 40 is connected to 3 wires 45.Each wire 45 is used for connecting single-phase
Stator coil 44 and the power supply terminal 24 being installed on hermetic container 20.
As shown in fig. 6, the insertion terminal 71 that one end of each wire 45 becomes insertion power supply terminal 24 and connects.Insertion terminal
71 as connection terminal an example.Insertion terminal 71 is provided with cluster terminal 72.Cluster terminal 72 is as resin cover
One example.The terminal 71 that is entirely insertable of 3 wires 45 inserts in cluster terminal 72.Surrounding due to inserting terminal 71 is covered with
Resin, even if produce spark when insertion terminal 71 is extracted due to loose contact, ignition energy also will not be discharged into hermetic container
Space in 20.Therefore, cold-producing medium will not occur dismutation reaction.Furthermore it is also possible to further by power supply terminal with cluster eventually
72 identical resins are held to cover.By protecting power supply terminal 24 with resin such that it is able to be more reliably prevented from producing dismutation reaction.
The other end of each wire 45 becomes riveting terminal 73, and together fix by pressure welding with stator coil 44 for described riveting terminal 73
In insulating element 48 (resin enclosure), described insulating element 48 is arranged on the end face of stator 41.So-called pressure welding, is one kind gold
Belong to the method that the electric wire with overlay film is engaged with each other by equipment.In the present embodiment, stator coil 44 and wire 45 be with
The electric wire of overlay film.The hardware of pressure welding destroys the overlay film of these electric wires, the heart yearn of contact inner side.Thus, stator coil 44
Electrically connect with wire 45.Rivet terminal 73 by using such pressure welding formula, stator coil 44 and wire 45 and hardware
Part beyond the part of contact is the state protected by overlay film.Therefore, the conducting parts of the electric element 40 in hermetic container 20
Exposing of (part that i.e. electric current flows through) can be restricted to Min..Accordingly it is possible to prevent the intrusion of the foreign body such as metal powder is airtight
In the case of in container 20, short circuit etc. leads to high current to flow through and generate heat.As a result, the dismutation reaction of cold-producing medium can be suppressed.
The stator coil 44 of 3 phases is interconnected by jumper 47.
Fig. 7 is the figure of the construction representing wire 45 and jumper 47.
In the figure 7, wire 45 and jumper 47 are the electric wires having overlay film.
When manufacturing compressor 12, wire 45 contacts hermetic container 20, and the heat that welding produces melts covering of wire 45 sometimes
Film.In addition, compressor 12 is in the running, the abnormal heating in compressor 12 melts covering of wire 45 or jumper 47 sometimes
Film.Wire 45 or jumper 47 also have, when contacting rotor 42, the situation being stripped off overlay film.Due to such a compressor 12
Exception, if the heart yearn 74 of wire 45 or jumper 47 exposes, the heating that causes by electric power short circuit may be produced.Cause
This, adopted preferably on wire 45 and jumper 47 and adhere to the 1st overlay film 75 in wire surface and covered electricity together with the 1st overlay film 75
This duplex of 2nd overlay film 76 of the tubulose of line.By duplex, even if the 2nd overlay film 76 damages, the 1st overlay film 75 also can
Enough prevent short circuit.Its result is to suppress the dismutation reaction of cold-producing medium.
The material of heart yearn 74 is using the material same with stator coil 44, such as copper.The material of the 1st overlay film 75 can be using as AI
(amide imide)/EI (ester acid imide) etc..The material of the 2nd overlay film 76 is different from the 1st overlay film 75, it is preferred to use FEP, but also may be used
To be the materials such as PPS, PET.
Heart yearn 74 is holocentric line.Twist thread many fine rules are bundles of, if the only fine rule of a fixing part or one
The fine rule broken string dividing, the radical of the fine rule of energising can reduce, thus there being the probability of heat production.Therefore, wire 45 is using softness
Holocentric line, thus reduces the probability of broken string, is prevented from generating heat.As a result, the dismutation reaction of cold-producing medium can be suppressed.
In the present embodiment, stator coil 44 can use copper cash, and the electric wire of other materials may also be employed.Cold-producing medium exists
It is susceptible to dismutation reaction for more than 1000 DEG C.Therefore, stator coil 44 select material below 1000 DEG C for the fusing point such that it is able to
Suppress dismutation reaction further.For example, with respect to fusing point in 1085 DEG C of copper, the fusing point of aluminum is at 660 DEG C about.Therefore, stator
Coil 44 can consider to select aluminum steel.The heart yearn 74 of wire 45 and jumper 47 also can be selected for less than 1000 DEG C of material.For example,
Heart yearn 74 is it is also contemplated that select aluminum steel.
As described above, according to present embodiment, can exclude in refrigerating circulatory device 10 (particularly compressor
12) there is the main cause of ignition energy (high-temperature portion) in inside.Accordingly it is possible to prevent being sent out by the cold-producing medium containing HFO-1123
The blast given birth to dismutation reaction and cause.
Embodiment 2
With regard to present embodiment, mainly the difference with embodiment 1 is illustrated.
In the present embodiment, the structure of refrigerating circulatory device 10 is identical with embodiment 1 as shown in Figures 1 and 2.Pressure
The structure of contracting machine 12 is also identical with embodiment 1 as shown in Figure 3.
Fig. 8 is the figure of the insertion terminal 77 of the wire 45 of the electric element 40 representing that compressor 12 has.
In embodiment 1, as shown in figure 5, wire 45 passes through riveting terminal 73 is connected to stator coil 44.The opposing party
Face, in the present embodiment, as shown in figure 8, wire 45 passes through insertion terminal 77 is connected to stator coil 44.On insertion terminal 77
It is coated with sleeve 78.The material of sleeve 78 is resin, and preferably FEP is but it is also possible to be PPS, PET etc..Because sleeve 78 protection is inserted
Enter terminal 77, loose contact leads to flashing even if insertion terminal 77 is extracted, and ignition energy also will not be released to airtight appearance
Space in device 20.Therefore, the dismutation reaction of cold-producing medium will not be caused.
Embodiment 3
With regard to present embodiment, mainly the difference with embodiment 1 is illustrated.
In the present embodiment, the structure of refrigerating circulatory device 10 with as shown in Figures 1 and 2 in embodiment 1 identical.
The structure of compressor 12 is also identical with embodiment 1 as shown in Figure 3.
Fig. 9 is the figure of the construction of a part for base bearing 33 representing that compressor 12 has.
In fig .9, the upside (i.e. the side relative with electric element 40) of base bearing 33 is formed with peristome 81, described
The peristome 81 insertion main shaft part 52 of axle 50.The surrounding of the peristome 81 of base bearing 33 adopts aluminum metalloid 82.Aluminum metalloid
82 as fusing point the material below 1000 DEG C an example.
The main material of base bearing 33 is ferrum.When the sliding part of ferrum makes ferrum that melting to occur because burning is viscous, temperature rises
To 1500 DEG C about.This high temperature becomes the main cause that cold-producing medium occurs dismutation reaction.Therefore, at least in base bearing 33 close
The part closing opening at container 20 adopts the aluminum metalloid 82 of low melting point, thus, even if axle 50 occur to burn viscous also it can be avoided that discrimination
Change reaction.
In addition, being not only the sliding part of base bearing 33, the sliding part of supplementary bearing 34 can also be 1000 DEG C using fusing point
Following material.
It is more than the explanation to embodiment of the present invention, arbitrarily several in these embodiments can be combined to
Implement.Or, also can partly implement in these embodiments any one or more.For example, it is also possible to omit in each accompanying drawing appoint
Anticipating, one or more have the element of symbol, are replaced as other element.And, the present invention is not limited to these embodiments, root
Can there are various changes according to needs.
Symbol description：
10 refrigerating circulatory devices, 11a, 11b refrigerant loop, 12 compressors, 13 cross valves, 14 outdoor heat converters, 15
Expansion valve, 16 indoor heat converters, 17 control devices, 20 hermetic containers, 21 suction tubes, 22 discharge pipes, 23 absorbing silencers, 24
Power supply terminal, 30 compressing members, 31 cylinders, 32 rotary-pistons, 33 base bearings, 34 supplementary bearings, 35 exhaust silencers, 40 electronic yuan
Part, 41 stators, 42 rotors, 43 stator cores, 44 stator coils, 45 wires, 46 rotor cores, 47 jumpers, 48 insulating elements,
50 axles, 51 eccentric axial portion, 52 main shaft part, 53 countershaft portions, 61 teeth, 62 gaps, 63 gaps, 71 insertion terminals, 72 cluster terminals, 73
Riveting terminal, 74 heart yearns, 75 the 1st overlay films, 76 the 2nd overlay films, 77 insertion terminals, 78 sleeves, 81 peristomes, 82 aluminum metalloids.
Claims (13)
1. a kind of compressor is it is characterised in that have：
Container, described container is provided with the suction tube for sucking the cold-producing medium containing 1,1,2- trifluoro-ethylene and is used for discharging
The discharge pipe of described cold-producing medium, and inside is discharge pressure environment；
Compressing member, described compressing member is accommodated in described container, compresses the described cold-producing medium being sucked by described suction tube；
The electric element of concentratred winding, the electric element of described concentratred winding is accommodated in described container, and drives described pressure
Contracting element.
2. compressor as claimed in claim 1 it is characterised in that
The stator coil of described electric element is interconnected by the jumper with overlay film.
3. compressor as claimed in claim 1 it is characterised in that
On described container, the power supply terminal being connected with external power source is installed,
The stator coil of described electric element is connected to described power supply terminal by the wire with overlay film.
4. compressor as claimed in claim 2 or claim 3 it is characterised in that
Described overlay film is duplex.
5. compressor as claimed in claim 1 it is characterised in that
Described container is provided with the power supply terminal being connected with external power source,
The stator coil of described electric element is connected to described power supply terminal by wire,
The connection terminal being connected with the described power supply terminal of described wire is provided with resinous cover.
6. compressor as claimed in claim 1 it is characterised in that
On described container, the power supply terminal being connected with external power source is installed,
The stator coil of described electric element is connected to described power supply terminal by the wire of holocentric line.
7. compressor as claimed in claim 1 it is characterised in that
On described container, the power supply terminal being connected with external power source is installed,
The stator coil of described electric element is connected to described power supply terminal by wire,
Insulating component is fixed in riveting terminal pressure welding together with the stator coil of described electric element of described wire, described riveting
Terminal is connected on the stator coil of described electric element, and described insulating component is arranged at the stator faces of described electric element.
8. compressor as claimed in claim 1 it is characterised in that
On described container, the power supply terminal being connected with external power source is installed,
The stator coil of described electric element is connected with described power supply terminal by wire,
The insertion terminal that the stator coil with described electric element of described wire is connected is coated with resinous sleeve.
9. the compressor as any one of claim 1～8 it is characterised in that
The stator coil of described electric element adopts material below 1000 DEG C for the fusing point.
10. the compressor as any one of claim 1～9 it is characterised in that
It is formed with peristome, opening described in axle insertion in the side relative with described electric element of the bearing of described compressing member
Portion,
The material that the surrounding of the described peristome of the bearing of described compressing member is less than 1000 DEG C using fusing point.
11. compressors as any one of claim 1～10 it is characterised in that
Described cold-producing medium is 1,1,2- trifluoro-ethylene.
12. compressors as any one of claim 1～10 it is characterised in that
Described cold-producing medium is mixture more than 1% for 1,1, the 2- trifluoro-ethylene content.
A kind of 13. refrigerating circulatory devices it is characterised in that
There is refrigerant loop, described refrigerant loop is connected with the compressor as any one of claim 1～12, contains
The cold-producing medium having 1,1,2- trifluoro-ethylene circulates in described refrigerant loop.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014052480 | 2014-03-14 | ||
| JP2014-052480 | 2014-03-14 | ||
| PCT/JP2015/051117 WO2015136977A1 (en) | 2014-03-14 | 2015-01-16 | Compressor and refrigeration cycle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106460847A true CN106460847A (en) | 2017-02-22 |
| CN106460847B CN106460847B (en) | 2018-12-04 |
Family
ID=54071431
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580014126.7A Active CN106460847B (en) | 2014-03-14 | 2015-01-16 | Compressor and refrigerating circulatory device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6180619B2 (en) |
| CN (1) | CN106460847B (en) |
| WO (1) | WO2015136977A1 (en) |
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| CN112955656A (en) * | 2018-11-09 | 2021-06-11 | 三菱电机株式会社 | Compressor and refrigeration cycle device |
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| WO2017145712A1 (en) * | 2016-02-22 | 2017-08-31 | 旭硝子株式会社 | Compressor and heat cycle system |
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| JP2022132096A (en) * | 2021-02-26 | 2022-09-07 | ダイキン工業株式会社 | Use as refrigerant in compressor, compressor, and refrigeration cycle device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2015136977A1 (en) | 2015-09-17 |
| CN106460847B (en) | 2018-12-04 |
| JPWO2015136977A1 (en) | 2017-04-06 |
| JP6180619B2 (en) | 2017-08-16 |
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