CN105587663A - Vertical two-stage rotating compressor for refrigerator and work method of vertical two-stage rotating compressor - Google Patents
Vertical two-stage rotating compressor for refrigerator and work method of vertical two-stage rotating compressor Download PDFInfo
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- CN105587663A CN105587663A CN201511017934.7A CN201511017934A CN105587663A CN 105587663 A CN105587663 A CN 105587663A CN 201511017934 A CN201511017934 A CN 201511017934A CN 105587663 A CN105587663 A CN 105587663A
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- Prior art keywords
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- stator
- bearing
- rotor
- housing
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003507 refrigerant Substances 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 47
- 229910052751 metal Inorganic materials 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 33
- 230000003584 silencer Effects 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 9
- 239000003595 mist Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 210000000515 tooth Anatomy 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
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- 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
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- F04C23/001—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 of similar working principle
-
- 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
- F04C29/02—Lubrication; Lubricant separation
-
- 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
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
-
- 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
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/045—Heating; Cooling; Heat insulation of the electric motor in 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
- F04C29/06—Silencing
-
- 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
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Abstract
The invention discloses a vertical two-stage rotating compressor for a refrigerator and a work method of the vertical two-stage rotating compressor. The compressor comprises a shell, an outer rotor motor, a pump body, a low-pressure gas suction pipe, a medium-pressure gas inlet pipe, a high-pressure exhaust pipe and a support, wherein the outer rotor motor and the pump body are included in the shell, and the low-pressure gas suction pipe, the medium-pressure gas inlet pipe and the high-pressure exhaust pipe are distributed on the shell. The outer rotor motor is composed of a stator and a rotor. The pump body is composed of a crankshaft, a middle partition plate, a first-stage compression part, a second-stage compression part and a medium-pressure exhaust anechoic chamber. The work method of the vertical two-stage rotating compressor includes the steps that low-pressure refrigerant gas is sucked in through the low-pressure gas suction pipe, compressed through the first-stage compression part to the medium pressure and then exhausted into the medium-pressure exhaust anechoic chamber to be mixed with medium-pressure refrigerant gas sucked in through the medium-pressure gas inlet pipe; and then the mixed gas is compressed through the second-stage compression part to the high pressure, and exhaust gas is exhausted to the top of the shell along a runner and then exhausted from the middle of the shell. By means of the vertical two-stage rotating compressor for the refrigerator and the work method of the vertical two-stage rotating compressor, the overall height of the vertical rotating compressor is effectively reduced, and the requirement for design of a refrigerator system is met; and due to the fact that an internal liquid storage system is arranged, safety and efficiency of compression are ensured, and meanwhile the configuration of the refrigerator system is simplified.
Description
Technical field
The present invention relates to two-stage compressing rotating compressor, be specifically related to a kind of refrigerator with vertical twoLevel rotary compressor and method of work thereof.
Background technology
Compressor is as the heart of whole cooling cycle system of refrigerator, refrigerant vapour from low pressureState is compressed to high pressure conditions, for circulation provides power, kind of refrigeration cycle is able to again and againCarry out. The reliability service that ensures compressor is vital.
Compared with other compressors, refrigerator system requires strict for the design size of compressor,Especially to ensure that it highly meets requirement of system design. The working environment of freezer compressor is chamberIn, therefore having relatively high expectations to vibrations noise. Meanwhile, also want to meet the system of refrigerator variationCold demand.
Existing domestic refrigerator system generally has two chambers, and this just shows that it has two differencesRefrigeration target temperature, this matches the characteristic of two stages of compression circulation and refrigerator system. ButStill be not specifically designed in the market the two-stage compressor of refrigerator system.
Due to the special designing requirement of compressor for above-mentioned refrigerator, the rotary compressor that refrigerator is usedBy the common vertical Horizontai rotary compressor that changes into, but this has caused a series of problem, reducesThe reliability of compressor. Problem comes from, and horizontal and vertical architectural difference has caused horizontalThe oil piping system of vertical rotating formula compressor can be directly used, and extra confession need to be redesignedOil system. And the feature of refrigerator system requires each parts all simple as much as possible, therefore simpleThe oil supply system of Horizontai rotary compressor could not design always efficiently again, fuel feeding problem oneDirectly could not solve, especially, in power condition changing, easily occur for shortage of oil, finally makeBecome compressor abrasion amount to increase, the lost of life. Affect the stability of refrigerator system, severe patient veryTo causing compressor to burn.
Summary of the invention
The problem existing in order to overcome above-mentioned prior art, the object of the present invention is to provide oneVertical 2 stage rotary compressor and method of work thereof for refrigerator, adopt vertical rotating formula in housingCompressor arrangement, effectively meets the fuel feeding demand of compressor, ensures the stability of compressor; AdoptWith external rotor electric machine, reduce the overall height of vertical rotating formula compressor, meet refrigerator systemDesign requirement; By inner liquid storage system is set, ensure the safe and efficient of two-stage compression, withTime simplified refrigerator system configuration; In addition, utilize the peculiar structure of external rotor electric machine, rationally establishMeter runner, realizes fully separating of exhaust and mist of oil, improves system reliability.
In order to achieve the above object, the present invention adopts following technical scheme:
The vertical 2 stage rotary compressor of a kind of refrigerator, comprises housing 11, and configuration is contained inOuter rotor motor 12 in the inner space of described housing 11 and by this outer rotor motor12 pump housings 13 that drive,
Described housing 11 sides, middle part are provided with the power blast pipe of use of outer rotor via motor 1214 and seal socket assembly 15;
Described outer rotor motor 12 is by stator 16 and the rotor 17 in these stator 16 outsidesForm;
The described pump housing 13 comprises and occupy bent axle 18 and the centre of vertically extending at pump housing centerDividing plate 19, is configured in the upper cylinder body 20 on central dividing plate 19 tops, in central dividing plate 19 bottomsLower cylinder body 21, upper piston in upper cylinder body 20 22 and upper slide plate 24, and correspondingLower piston 23 in lower cylinder body 21 and lower slide plate 25; Upper piston 22 and lower piston 23 are allBe enclosed within on bent axle 18; The upper bearing (metal) 26 that its end face is closed is arranged at upper cylinder body 20 tops,Lower cylinder body 21 bottoms have its end face are closed to lower bearing 27; Described upper bearing (metal) 26 and underBearing 27 all doubles as the bearing of bent axle 18;
Described stator 16 is fixed on upper bearing (metal) 26, upper bearing (metal) 26 and housing weldering for 11 inwallsConnect fixing; Rotor 17 is connected with bent axle 18;
Exhaust silencer 28 connect upper bearing (metal) 26 and stator 16 and with upper bearing (metal) 26 and stator16 form high pressure gas anechoic room 29; Between lower ball cover 30 and lower bearing 27, in formation, pressExhausting silencer chamber 31, middle pressure gas anechoic room 31 has the function of gas storage liquid storage and gas-liquid separation concurrently;
Low pressure air suction pipe 32 is connected with reservoir 33 from housing 11 sides; In compress into tracheae 34Be positioned at lower bearing 27 sides, be connected with exterior line from housing 11 sides; Middle pressure air intake duct35 are nested in upper bearing (metal) 16, upper cylinder body 20, central dividing plate 19, lower cylinder body 21 and lower bearing27 perforate inside vertically;
Described bent axle 18 is provided with along the oilhole 39 of center vertical line direction with oilhole 39 and communicatesAnd along horizontal multiple oilholes of laterally giving.
In the parts of the described pump housing 13 of formation, upper bearing (metal) 26, upper cylinder body 20, central dividing plate19, lower cylinder body 21 and lower bearing 27 are configured on bent axle 18 from top to bottom successively, and with manyIndividual the first construction bolt group 36 is connected and fixed; Exhaust silencer 28 the second construction boltGroup 37 is fixed with upper bearing (metal) 26, lower ball cover 30 use the 3rd construction bolt group 38 and underBearing 27 is connected and fixed.
Described outer rotor motor 12 comprises rotor 17, is arranged on the stator 16 outside rotor 17;Described rotor 17 comprises rotor core 41 and multiple rotor magnetic being arranged in rotor core 41Ironware 42; Described stator 16 comprises stator core 43, is positioned at the upper of stator core 43 upper endsIron core screening glass 44, is positioned at the exhaust silencer 28 of stator core 43 lower ends, is wrapped in statorStator winding 45 on upper core screening glass 44 and the exhaust silencer 28 of iron core 43; DescribedStator core 43 has be spaced apart from each other in the circumferential direction inwardly of described stator core manyIndividual stator tooth 46, limits stator slot 47, described stator between every two adjacent stator toothsGroove 47 openings, towards stator core 43 centers of circle, circumferentially seal stator core 43; On describedThe shape of iron core screening glass 44 and exhaust silencer 28 is identical with stator core 43 radial sections,Exhaust silencer 28 lateral surfaces are the barrel-like structure with certain altitude, are connected with upper bearing (metal) 26Connect, form high pressure gas anechoic room 29; Described stator winding 45 is through multiple stator slots 47Be wrapped on the upper core screening glass 44 and exhaust silencer 28 of stator core 43.
Described stator core (11) is fixed on rotary compressor upper bearing (metal) 26 by hot jacket methodOn.
The support 40 of fixing use is installed in the lower end of described housing 11.
The method of work of vertical 2 stage rotary compressor for refrigerator described above, first,Through seal socket assembly 14, outer rotor motor 12 energisings are started, rotor 17 rotates;Rotor 17 is with dynamic crankshaft 18 to rotate, bent axle 18 rotarily drive upper piston 22 and lower piston23 respectively at upper cylinder body 20 and the interior eccentric rotary of lower cylinder body 21;
Low pressure refrigerant gas is drawn into lower cylinder via reservoir 33 by low pressure air suction pipe 32In 21; And by lower piston 23 rotatablely move and the reciprocating motion of lower slide plate 25 by low pressureGas compression is to intermediate pressure, then from lower bearing 27 enters in pressure gas anechoic room 31;
Meanwhile, medium pressure grade refrigerant gas via in compress into tracheae 34 and enter pressure exhausting silencerChamber 31, fully mixes with first order Compressed Gas. Then,, via middle pressure air intake duct 35, inhaleEnter in upper cylinder 20, and by upper piston 22 rotatablely move and upper slide plate 24 back and forthMedium pressure gas is compressed to high pressure by motion, then enters high pressure gas from upper bearing (metal) 26 and eliminate the noiseIn chamber 29; From high pressure gas anechoic room 29 gases at high pressure out, electronic through outer rotorThe runner of 16 of the stators of machine 12 and the gap of rotor 17, rise to housing 11 inner tops,In process, outer rotor motor 12 is had to certain cooling effect; Then refrigerant gas and mistShape lubricating oil separates at top, and mist lubrication oil condenses into drop along housing 11 sidesInwall flows in the oil sump of compressor bottom; The refrigerant gas of high pressure passes through external rotor electric simultaneouslyRunner between rotor 17 outsides and housing 11 inwalls of motivation 12, flows to the middle part of compressor,Discharge via blast pipe 14;
Meanwhile, by the rotation of bent axle 18, in the lubricating oil of housing 11 bottoms, via songThe oilhole 39 of the vertical direction at Zhou18 center rises, by being located at laterally flowing out to oilhole midway,Be supplied in the bearing and each compression chamber of bent axle 18, the each moving component of compressor is hadEffect is lubricated.
Compared to the prior art, the present invention possesses following advantage:
1, owing to having adopted two stages of compression structure, therefore, can be directly used in refrigerator two stages of compressionThe 2 stage rotary compressor of system, can directly realize refrigerator two-stage compression system, improves systemThe coefficient of performance of system.
2, have the function of gas storage liquid storage and gas-liquid separation concurrently due to middle pressure gas anechoic room, therefore,Simplify the air intake structure of casing top half, save refrigerator design space.
3, due to adopt outer rotor motor, therefore, on the design height of compressor greatlyReduce, can reach the height close with Horizontai rotary compressor, meet the design of refrigerator systemRequirement.
4, because the stator in outer rotor motor is provided with closed flow, therefore, both expandedThe muffler space of high pressure gas, effectively control airflow fluctuation and noise, also motor is had necessarilyCooling effect.
5, owing to adopting vertical rotating compressor arrangement, therefore, there is vertical rotating compressorSimple oil supply system efficiently, ensure compressor operation stability and high efficiency.
Brief description of the drawings
Figure 1 shows that 2 stage rotary compressor structural representation of the present invention.
Figure 2 shows that 2 stage rotary compressor A-A generalized section of Fig. 1.
Figure 3 shows that 2 stage rotary compressor B-B generalized section of Fig. 1.
Figure 4 shows that 2 stage rotary compressor C-C generalized section of Fig. 1.
Figure 5 shows that outer rotor motor radial section schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of refrigerator of the present invention revolves by vertical two-stageRotatable compressor, comprises housing 11, configures in the inner space that is contained in described housing 11Outer rotor motor 12 and the pump housing 13 being driven by this outer rotor motor 12,
Described housing 11 sides, middle part are provided with the power blast pipe of use of outer rotor via motor 1214 and seal socket assembly 15;
Described outer rotor motor 12 is by stator 16 and the rotor 17 in these stator 16 outsidesForm;
The described pump housing 13 comprises and occupy bent axle 18 and the centre of vertically extending at pump housing centerDividing plate 19, is configured in the upper cylinder body 20 on central dividing plate 19 tops, in central dividing plate 19 bottomsLower cylinder body 21, upper piston in upper cylinder body 20 22 and upper slide plate 24, and correspondingLower piston 23 in lower cylinder body 21 and lower slide plate 25; Upper piston 22 and lower piston 23 are allBe enclosed within on bent axle 18; The upper bearing (metal) 26 that its end face is closed is arranged at upper cylinder body 20 tops,Lower cylinder body 21 bottoms have its end face are closed to lower bearing 27; Described upper bearing (metal) 26 and underBearing 27 all doubles as the bearing of bent axle 18;
Described stator 16 is fixed on upper bearing (metal) 26, upper bearing (metal) 26 and housing weldering for 11 inwallsConnect fixing; Rotor 17 is connected with bent axle 18;
Exhaust silencer 28 connect upper bearing (metal) 26 and stator 16 and with upper bearing (metal) 26 and stator16 form high pressure gas anechoic room 29; Between lower ball cover 30 and lower bearing 27, in formation, pressExhausting silencer chamber 31, middle pressure gas anechoic room 31 has the function of gas storage liquid storage and gas-liquid separation concurrently;
Low pressure air suction pipe 32 is connected with reservoir 33 from housing 11 sides; In compress into tracheae 34Be positioned at lower bearing 27 sides, be connected with exterior line from housing 11 sides; Middle pressure air intake duct35 are nested in upper bearing (metal) 16, upper cylinder body 20, central dividing plate 19, lower cylinder body 21 and lower bearing27 perforate inside vertically;
Described bent axle 18 is provided with along the oilhole 39 of center vertical line direction with oilhole 39 and communicatesAnd along horizontal multiple oilholes of laterally giving. It is vertical with horizontal plane that bent axle 18 is installed posterior axis, withEnsure the vertical structure of compressor, ensure oil supply function.
As the preferred embodiment of the present invention, in the parts of the described pump housing 13 of formation, onBearing 26, upper cylinder body 20, central dividing plate 19, lower cylinder body 21 and lower bearing 27 are from top to bottomBe configured in successively on bent axle 18, and be connected and fixed by multiple the first construction bolt groups 36;Exhaust silencer 28 use the second construction bolt groups 37 are fixed with upper bearing (metal) 26, lower bearingLid 30 use the 3rd construction bolt group 38 is connected and fixed with lower bearing 27.
As the preferred embodiment of the present invention, be provided with fixing in the lower end of described housing 11With support 40.
As shown in Figure 5, for outer rotor motor 12 radial section schematic diagrames, comprise rotor 17,Be arranged on the stator 16 outside rotor 17; Rotor 17 comprises rotor core 41 and multiple rotor magneticIronware 42, multiple rotor magnet parts 42 are located on the internal face of rotor core 41, Mei GezhuanSub-magnet 42 is rare-earth permanent magnet part. Particularly, as shown in Figure 1, rotor 17 is set in fixedThe periphery of son 16, the shape of rotor core 41 is roughly circular, rotor magnet part 42Shape is roughly arc piece. Alternatively, multiple rotor magnet parts 42 can spaced apartly be located at and turnOn the internal face of sub-iron core 41. Or alternatively, multiple rotor magnet parts 42 can be close toBe arranged on the internal face of rotor core 41.
Stator 16 comprise stator core 43, upper core screening glass 44, high pressure gas silencer (underIron core screening glass) 28 and stator winding 45. Particularly, as shown in Figure 5, stator core 43There are the multiple stator tooths 46 that are spaced apart from each other in the circumferential direction inwardly of stator core, everyBetween two adjacent described stator tooths, limit stator slot 47, stator slot 47 openings are towards statorThe center of circle.
The method of work of vertical 2 stage rotary compressor for refrigerator of the present invention, first,Through seal socket assembly 14, outer rotor motor 12 energisings are started, rotor 17 rotates;Rotor 17 is with dynamic crankshaft 18 to rotate, bent axle 18 rotarily drive upper piston 22 and lower piston23 respectively at upper cylinder body 20 and the interior eccentric rotary of lower cylinder body 21;
Low pressure refrigerant gas is drawn into lower cylinder via reservoir 33 by low pressure air suction pipe 32In 21; And by lower piston 23 rotatablely move and the reciprocating motion of lower slide plate 25 by low pressureGas compression is to intermediate pressure, then from lower bearing 27 enters in pressure gas anechoic room 31;
Meanwhile, medium pressure grade refrigerant gas via in compress into tracheae 34 and enter pressure exhausting silencerChamber 31, fully mixes with first order Compressed Gas. Then,, via middle pressure air intake duct 35, inhaleEnter in upper cylinder 20, and by upper piston 22 rotatablely move and upper slide plate 24 back and forthMedium pressure gas is compressed to high pressure by motion, then enters high pressure gas from upper bearing (metal) 26 and eliminate the noiseIn chamber 29; From high pressure gas anechoic room 29 gases at high pressure out, electronic through outer rotorThe runner of 16 of the stators of machine 12 and the gap of rotor 17, rise to housing 11 inner tops,As shown in filled arrows in Fig. 1, in process, outer rotor motor 12 is had to certain cooling workWith; Then refrigerant gas separates at top with mist lubrication oil, and mist lubrication oil condensesBecome drop to flow in the oil sump of compressor bottom along housing 11 side inner walls; While high pressureBetween rotor 17 outsides of refrigerant gas by outer rotor motor 12 and housing 11 inwallsRunner, flows to the middle part of compressor, discharges via blast pipe 14;
Meanwhile, by the rotation of bent axle 18, in the lubricating oil of housing 11 bottoms, via songThe oilhole 39 of the vertical direction at Zhou18 center rises, by being located at laterally flowing out to oilhole midway,Be supplied in the bearing and each compression chamber of bent axle 18, the each moving component of compressor is hadEffect is lubricated.
Claims (7)
1. the vertical 2 stage rotary compressor of refrigerator, comprises housing (11), described in configuration is contained inOuter rotor motor (12) in the inner space of housing (11) and being driven by this outer rotor motor (12)The moving pump housing (13), is characterized in that:
Side, described housing (11) middle part is provided with the blast pipe (14) of outer rotor via motor (12) power supply useWith seal socket assembly (15);
The described pump housing (13) comprises the bent axle (18) and the middle interval that occupy pump housing center and vertically extendPlate (19), is configured in the upper cylinder body (20) on central dividing plate (19) top, in central dividing plate (19) bottomLower cylinder body (21), the upper piston (22) in upper cylinder body (20) and upper slide plate (24), and correspondingThe lower piston (23) in lower cylinder body (21) and lower slide plate (25); Upper piston (22) and lower piston (23)All be enclosed within on bent axle (18); The upper bearing (metal) (26) that its end face is closed is arranged at upper cylinder body (20) top,Lower cylinder body (21) bottom has its end face is closed to lower bearing (27); Described upper bearing (metal) (26) and lower shaftHold the bearing that (27) all double as bent axle (18);
It is upper that described stator (16) is fixed on upper bearing (metal) (26), upper bearing (metal) (26) and housing (11) inwallWith being welded and fixed; Rotor (17) is connected with bent axle (18);
Exhaust silencer (28) connect upper bearing (metal) (26) with stator (16) and with upper bearing (metal) (26) andBetween stator (16), form high pressure gas anechoic room (29); Shape between lower ball cover (30) and lower bearing (27)Pressure gas anechoic room (31) in one-tenth, middle pressure gas anechoic room (31) has the merit of gas storage liquid storage and gas-liquid separation concurrentlyCan;
Low pressure air suction pipe (32) is connected with reservoir (33) from housing (11) side; In compress into tracheae (34)Be positioned at lower bearing (27) side, be connected with exterior line from housing (11) side; Middle pressure air intake duct (35)Be nested in upper bearing (metal) (16), upper cylinder body (20), central dividing plate (19), lower cylinder body (21) and lower bearing (27)Perforate inside vertically;
Described bent axle (18) is provided with along the oilhole (39) of center vertical line direction with oilhole (39) and communicatesAnd along horizontal multiple oilholes of laterally giving.
2. the vertical 2 stage rotary compressor of refrigerator according to claim 1, is characterized in that: adoptUse vertical compressor structure, the bent axle of compressor (18) axis is vertical with horizontal plane.
3. the vertical 2 stage rotary compressor of refrigerator according to claim 1, is characterized in that:Form in the parts of the described pump housing (13), upper bearing (metal) (26), upper cylinder body (20), central dividing plate (19),It is upper that lower cylinder body (21) and lower bearing (27) are configured in bent axle (18) from top to bottom successively, and with multiple theOne construction bolt group (36) is connected and fixed; The second construction bolt group (37) for exhaust silencer (28)Be fixed the 3rd construction bolt group (38) and lower bearing for lower ball cover (30) with upper bearing (metal) (26)(27) be connected and fixed.
4. the vertical 2 stage rotary compressor of refrigerator according to claim 1, is characterized in that:Described outer rotor motor (12) comprises rotor (17), is arranged on the outer stator (16) of rotor (17);Described rotor (17) comprises rotor core (41) and multiple rotor magnetic being arranged in rotor core (41)Ironware (42); Described stator (16) comprises stator core (43), is positioned at stator core (43) upper endUpper core screening glass (44), is positioned at the exhaust silencer (28) of stator core (43) lower end, and it is fixed to be wrapped inStator winding (45) on upper core screening glass (44) and the exhaust silencer (28) of sub-iron core (43);Described stator core (43) has be spaced apart from each other in the circumferential direction inwardly of described stator core multipleStator tooth (46), limits stator slot (47), described stator slot (47) between every two adjacent stator toothsOpening, towards stator core (43) center of circle, circumferentially seals stator core (43); Described upper core protectionThe shape of sheet (44) and exhaust silencer (28) is identical with stator core (43) radial section, and exhaust disappearsSound device (28) lateral surface is the barrel-like structure with certain altitude, is connected with upper bearing (metal) (26), formsHigh pressure gas anechoic room (29); Described stator winding (45) is wrapped in stator through multiple stator slots (47)On the upper core screening glass (44) and exhaust silencer (28) of iron core (43).
5. the vertical 2 stage rotary compressor of refrigerator according to claim 4, is characterized in that: instituteStating stator core (11) is fixed on rotary compressor upper bearing (metal) (26) by hot jacket method.
6. the vertical 2 stage rotary compressor of refrigerator according to claim 1, is characterized in that:The lower end of described housing (11) is provided with the support (40) of fixing use.
7. the method for work of vertical 2 stage rotary compressor for the refrigerator described in claim 1 to 6 any one,It is characterized in that:
First, through seal socket assembly (14), outer rotor motor (12) energising is started, rotor (17)Rotation; Rotor (17) band dynamic crankshaft (18) rotates, bent axle (18) rotarily drive upper piston (22)And lower piston (23) eccentric rotary in upper cylinder body (20) and lower cylinder body (21) respectively;
Low pressure refrigerant gas is drawn into lower cylinder (21) via reservoir (33) by low pressure air suction pipe (32)In; And rotatablely move and low-pressure gas is pressed in the reciprocating motion of lower slide plate (25) by lower piston (23)Be reduced to intermediate pressure, then from lower bearing (27) enters in pressure gas anechoic room (31);
Meanwhile, medium pressure grade refrigerant gas via in compress into tracheae (34) and enter pressure gas anechoic room (31),Fully mix with first order Compressed Gas. Then,, via middle pressure air intake duct (35), be drawn into upper cylinder (20)In, and rotatablely move and medium pressure gas is pressed in the reciprocating motion of upper slide plate (24) by upper piston (22)Be reduced to high pressure, then enter in high pressure gas anechoic room (29) from upper bearing (metal) (26); From high pressure gasAnechoic room (29) gases at high pressure out, through the stream between the stator (16) of outer rotor motor (12)The gap of road and rotor (17), rises to housing (11) inner top, in process to outer rotor motor (12)There is certain cooling effect; Then refrigerant gas separates at top with mist lubrication oil, mist lubricationOil condenses into drop and flows into along housing (11) side inner walls in the oil sump of compressor bottom; While high pressureBetween rotor (17) outside of refrigerant gas by outer rotor motor (12) and housing (11) inwallRunner, flows to the middle part of compressor, discharges via blast pipe (14);
Meanwhile, by the rotation of bent axle (18), in the lubricating oil of housing (11) bottom, via bent axle(18) oilhole of the vertical direction at center (39) rises, and by being located at laterally flowing out to oilhole midway, suppliesBe given in the bearing and each compression chamber of bent axle (18), make the each moving component of compressor obtain effectively lubricating.
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| CN113464439A (en) * | 2021-07-19 | 2021-10-01 | 黄石东贝压缩机有限公司 | Rotor compressor of side-plug wiring mode |
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