CN101539146B - Capacity variable rotary compressor and air-conditioning circulatory system - Google Patents

Capacity variable rotary compressor and air-conditioning circulatory system Download PDF

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Publication number
CN101539146B
CN101539146B CN2008101259944A CN200810125994A CN101539146B CN 101539146 B CN101539146 B CN 101539146B CN 2008101259944 A CN2008101259944 A CN 2008101259944A CN 200810125994 A CN200810125994 A CN 200810125994A CN 101539146 B CN101539146 B CN 101539146B
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China
Prior art keywords
pressing chamber
refrigeration agent
blade
refrigerant pipe
rotary compressor
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CN2008101259944A
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CN101539146A (en
Inventor
李祯培
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30Rotary-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
    • F04C18/34Rotary-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
    • F04C18/356Rotary-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/08Compressors specially adapted for separate outdoor units

Abstract

The invention discloses a capacity variable rotary compressor containing a first compressing chamber selectively compressing and idling a coolant and a second compressing chamber compressing coolant, and an air-conditioning circulatory system arranged with the compressor. The capacity variable rotary compressor comprises a first vane, wherein when the first vane moves forwards, the first compressing chamber compresses the coolant, and when the first vane moves backwards, the first compressing chamber idles; a vane control unit selectively connecting back of the first vane and one of the high-pressure side and low-pressure side of the air-conditioning circulatory system; a counter flow preventing unit for preventing coolant of the second compressing chamber from flowing back to a suction side of the air-conditioning circulatory system through the first compressing chamber when the first compressing chamber idles, and preventing coolant from flowing back to a liquid storing tank through the first compressing chamber when the first compressing chamber idles.

Description

Capacity variable rotary compressor and be equipped with the air conditioner circulating system of this compressor
Technical field
The present invention relates to a kind of capacity variable rotary compressor and be equipped with the air conditioner circulating system of this compressor, relate in particular to and a kind ofly can optionally carry out the compression of refrigeration agent and the capacity variable rotary compressor that idle running changes capacity and the air conditioner circulating system that is equipped with this compressor in one of them pressing chamber in a pair of pressing chamber.
Background technique
Generally, rotary compressor is the device that is applied on the air conditioner circulating system and refrigeration agent is compressed.Recently, a kind of capacity variable rotary compressor that successfully manages the changed capacity of multiple cooling load is arranged.
Korea S's publication discloses a kind of existing capacity variable rotary compressor for 10-2008-0016349 number.This existing capacity variable rotary compressor is provided with the drive unit 20 of generation rotating force in seal container 10 and accepts rotating force and the compression set 30 of compressed refrigerant from drive unit 20 as shown in Figure 1.
Drive unit 20 comprises: the stator 21 that fixedly is located at seal container 10 inside; Rotatably be located at the rotor 22 of stator 21 inside; One end is fixed on rotor 22 and the other end is located at the running shaft 23 of compression set 30, to be used for and will to be delivered to compression set 30 at the rotating force that drive unit 20 produces.Compression set 30 comprises: have first cylinder 31 of the first pressing chamber 31a, the described first pressing chamber 31a optionally carries out compression and the idle running of refrigeration agent under the state that refrigeration agent is compressed; Second cylinder 32 with second pressing chamber 32a, the described second pressing chamber 32a compresses refrigeration agent constantly; First flange 33 and second flange 34, supporting rotating shaft 23 rotatably in the time of with the bottom of the top that is used for sealing respectively the first pressing chamber 31a and the second pressing chamber 32a; Be located at the intermediate plate 35 between first cylinder 31 and second cylinder 32, to be used for dividing the first pressing chamber 31a and the second pressing chamber 32a.And, first of eccentric rotation is set in the first pressing chamber 31a and the second pressing chamber 32a rolls first blade 38 and second blade 39 that ring 36 and second rolls ring 37 and the first pressing chamber 31a and the second pressing chamber 32a is divided into the press part of the suction portion that sucks refrigeration agent and compressed refrigerant respectively.
And, this existing capacity variable rotary compressor has the blade control gear 50 for the advance and retreat of control first blade 38, this blade control gear 50 makes first blade, 38 advance and retreat by the pressure that change puts on first blade, 38 rears, thereby carries out the compression of refrigeration agent and the capacity that idle running changes capacity variable rotary compressor selectively.Namely, make the rear of first blade 38 form the zone of high pressure, thereby first blade 38 moves forward in the first pressing chamber 31a, and make the first pressing chamber 31a carry out the compression of refrigeration agent, perhaps make the rear of first blade 38 form low pressure area, thereby first blade 38 retreats from the first pressing chamber 31a, and the first pressing chamber 31a is dallied.
But, for this existing capacity variable rotary compressor, roll ring and second roll ring in order to rotate running shaft and first, the small spacing of being separated by between each parts of compression set, thereby when first pressing chamber dallies and is in low-pressure state, at the refrigeration agent of the compressed a part of High Temperature High Pressure of second pressing chamber by the gap between the parts of as above being separated by via the first pressing chamber adverse current to liquid container, moreover, because from sneaking into of the refrigeration agent of the High Temperature High Pressure of the second pressing chamber adverse current, the refrigeration agent of liquid container inside is heated, cause the density of refrigeration agent to reduce, volume increases, the volume of the cooling medium that is inhaled into second pressing chamber thus reduces, and causes the performance of capacity variable rotary compressor to descend.
Summary of the invention
The present invention proposes in order to address the above problem, its purpose be to provide a kind of prevent since idle running in the refrigeration agent of the compressed high pressure of the second pressing chamber first pressing chamber adverse current by low pressure to the capacity variable rotary compressor of the suction side of air conditioner circulating system and be equipped with the air conditioner circulating system of this compressor.
To achieve these goals, the present invention is at first pressing chamber that comprises the compression of optionally carrying out refrigeration agent and idle running and carry out in the capacity variable rotary compressor of second pressing chamber of compression of refrigeration agent, it is characterized in that comprising: first blade that described relatively first pressing chamber can arrange with advancing and retreat, carry out the compression of refrigeration agent at described first pressing chamber when this first blade advances, and this first blade dallies when retreating at described first pressing chamber; The rear that blade control unit, this blade control unit make described first blade optionally is communicated with the high pressure side of air conditioner circulating system and a certain side in the low voltage side makes first blade advance and retreat; Be located at the anti-adverse current unit on the stream that the guiding refrigeration agent flows into towards described first pressing chamber, to be used for preventing that when described first pressing chamber dallies refrigeration agent of described second pressing chamber from arriving the suction side of air conditioner circulating system by the described first pressing chamber adverse current.
And described blade control unit comprises: first refrigerant pipe that is communicated with the high pressure side of air conditioner circulating system; Second refrigerant pipe that is communicated with the low voltage side of air conditioner circulating system; The 3rd refrigerant pipe, an end of the 3rd refrigerant pipe is connected in the rear of described first blade, and the other end and described first refrigerant pipe optionally are connected with some refrigerant pipes in described second refrigerant pipe; The cross valve door is to be used for that described the 3rd refrigerant pipe optionally is connected with some refrigerant pipes of described first refrigerant pipe and described second refrigerant pipe.
And, also comprising the discharge tube that the refrigeration agent that guides compressed high pressure is discharged, an end of described first refrigerant pipe is connected in described discharge tube.
And, also comprising the liquid container that makes liquid refrigeration agent gasification flow into described first pressing chamber and described second compression afterwards, an end of described second refrigerant pipe is connected in the suction side of described liquid container.
And, also comprising first suction pipe that guiding is sucked into the refrigeration agent of described first pressing chamber, described anti-adverse current unit is located in described first suction pipe.
And the bent intermediate of described first suction pipe becomes the reverse U shape shape, and described anti-adverse current unit is located at the position that bends to the reverse U shape shape of described first suction pipe.
And, also comprise first suction pipe that the inside that the liquid container that flow into described first pressing chamber and described second compression after the liquid refrigeration agent gasification and an end extended project to described liquid container and guiding are sucked into the refrigeration agent of described first pressing chamber, described anti-adverse current unit is located at an end that extends described first suction pipe that projects to described liquid container inside.
And, also comprising first cylinder that forms described first pressing chamber, a side of this cylinder is formed with first suction port that can make refrigeration agent be sucked into described first suction chamber, and described anti-adverse current unit is located at described first suction port.
And described anti-adverse current unit comprises: center side has can make refrigeration agent run through the valve seat of mobile intercommunicating pore; The tabular valve plate that can arrange towards described valve seat with advancing and retreat; Be pin-shaped stop component, with the distance for the advance and retreat that limit described valve plate.The gabarit side of described valve plate has: the supporting portion that is supported in described stream inwall; The breakthrough part isolated with described stream inwall is so that refrigeration agent runs through mobile.
And, comprise according to air conditioner circulating system provided by the present invention: first pressing chamber that optionally carries out compression and the idle running of refrigeration agent; Carry out second pressing chamber of the compression of refrigeration agent; First blade that described relatively first pressing chamber can arrange with advancing and retreat carries out the compression of refrigeration agent at described first pressing chamber when this first blade advances, and this first blade dallies at described first pressing chamber when retreating; The rear that blade control unit, this blade control unit make described first blade optionally is communicated with the high pressure side of air conditioner circulating system and a certain side in the low voltage side and makes first blade advance and retreat; Be located at refrigeration agent is guided to anti-adverse current unit on the stream of described first pressing chamber, to be used for preventing that when described first pressing chamber dallies refrigeration agent of described second pressing chamber from arriving the suction side of air conditioner circulating system by the described first pressing chamber adverse current.
In sum, for capacity variable rotary compressor provided by the present invention, the rear of first blade is communicated with the high pressure side of air conditioner circulating system and a certain side in the low voltage side selectively, and utilize pressure official post first blade advance and retreat between the rear side of first pressing chamber and first blade, thus, dally with low-pressure state at first pressing chamber.And, be provided with anti-adverse current unit owing to connect the stream of first pressing chamber and liquid container, thereby even first pressing chamber dallies, can prevent that also the refrigeration agent of second pressing chamber from passing through the first pressing chamber adverse current to liquid container.
Description of drawings
Fig. 1 is the longitudinal sectional view of existing capacity variable rotary compressor;
The longitudinal sectional view of the capacity variable rotary compressor that provides according to the first embodiment of the present invention is provided Fig. 2;
The sectional view of first pressing chamber of the capacity variable rotary compressor that provides according to the first embodiment of the present invention is provided Fig. 3;
The sectional view of second pressing chamber of the capacity variable rotary compressor that provides according to the first embodiment of the present invention is provided Fig. 4;
Fig. 5 is the stereogram of anti-adverse current unit that the capacity variable rotary compressor that provides according to the first embodiment of the present invention is provided;
Fig. 6 is the sectional view that structure is set of anti-adverse current unit that the capacity variable rotary compressor that provides according to a second embodiment of the present invention is provided;
The sectional view that structure is set of the anti-adverse current unit of the capacity variable rotary compressor that is applied in a third embodiment in accordance with the invention and provides is provided Fig. 7.
*The main symbol description of accompanying drawing *
10: seal container 11: discharge tube
13: the second suction pipes of 12: the first suction pipes
30: 31: the first cylinders of compression set
31a: the first pressing chamber 31b: first suction port
32: the second gas 32a: second pressing chamber
32b: second suction port rolls ring at 36: the first
Roll 38: the first blades of ring at 37: the second
Blade 40 in 39: the second: liquid container
50: 51: the first refrigerant pipes of blade control unit
53: the three refrigerant pipes of 52: the second refrigerant pipes
54: cross valve 60: anti-adverse current unit
61: valve seat 62: valve plate
63: stop component
Embodiment
Below, describe the preferred embodiments of the present invention in detail with reference to accompanying drawing.
Be the device that is applied on the air conditioner circulating system and refrigeration agent is compressed according to capacity variable rotary compressor provided by the present invention.As shown in Figure 2, described capacity variable rotary compressor comprises: drive unit 20, to be used for producing rotating force in the inside of the seal container 10 that forms outward appearance; Compression set 30 is to be used for accepting power and compressed refrigerant from drive unit 20.And, be provided with liquid container 40 in a side of seal container 10, with the not evaporation and flowing in the compression set 30 after gasifying with the refrigeration agent that liquid state is carried fully of the vaporizer (not shown) that is used for making air conditioner circulating system.
Drive unit 20 comprises: stator 21 cylindraceous, and this stator 21 fixedly is located at the inwall of seal container 10; Rotor 22, this rotor 22 rotatably is located at the inside of stator 21; One end is fixed in rotor 22 and the other end is located at the running shaft 23 of compression set 30, to be used for and will to be delivered to compression set 30 at the rotating force that drive unit 20 produces.
As shown in Figure 3, Figure 4, compression set 30 comprises: have the first pressing chamber 31a of the compression of carrying out refrigeration agent and first cylinder 31 and second cylinder 32 of the second pressing chamber 32a respectively; First flange 33 and second flange 34, supporting rotating shaft 23 rotatably in the time of with the bottom of the top that is used for sealing respectively the first pressing chamber 31a and the second pressing chamber 32a; Be located at the intermediate plate 35 between first cylinder 31 and second cylinder 32, to be used for dividing the first pressing chamber 31a and the second pressing chamber 32a.Because the first pressing chamber 31a and the second pressing chamber 32a have identical volume in the present embodiment, so capacity variable rotary compressor provided by the present invention is with 100% capacity work when the first pressing chamber 31a carries out the compression of refrigeration agent, capacity variable rotary compressor provided by the present invention is with 50% capacity work when the first pressing chamber 31a dallies.
Be provided with in the first pressing chamber 31a and the second pressing chamber 32a from running shaft 23 and accept rotating force and first of compressed refrigerant roll ring 36 and second and roll ring 37 eccentric rotation the time.In order to make first to roll ring 36 and second and roll ring 37 eccentric rotation in the first pressing chamber 31a and the second pressing chamber 32a, running shaft 23a has eccentric with respect to the rotating center of running shaft 23 and the first eccentric part 23a and the second eccentric part 23b that form, and first rolls the outside that ring 36 rotatably is arranged at the first eccentric part 23a, and second rolls the outside that ring 37 rotatably is arranged at the second rotary part 23b.
The upside of seal container 10 is provided with the discharge tube 11 that can discharge at the compressed refrigeration agent in inside, and bottom one side of seal container 10 be provided with suck respectively will compressed refrigeration agent at the first pressing chamber 31a and the second pressing chamber 32a first suction pipe 12 and second suck shop 13.At this moment, first cylinder 31 and second cylinder 32 are respectively equipped with the first suction port 31b and the second suction port 32b that is connected with first suction pipe 12 and second suction pipe 13, so that the refrigeration agent of carrying by first suction pipe 12 and second suction pipe 13 is inhaled into the first pressing chamber 31a and the second pressing chamber 32a.First flange 33 and second flange 34 are formed with the first exhaust port 33a and the second exhaust port 34a, so that be discharged to the inner space of seal container 10 respectively at the first pressing chamber 31a and the compressed refrigeration agent of the second pressing chamber 32a.
And, for the inside that makes the first pressing chamber 31a and the second pressing chamber 32a is divided into the compressed portion of carrying out refrigeration agent and the part of carrying out the suction of refrigeration agent, at the first pressing chamber 31a and the second pressing chamber 32a first blade 38 and second blade 39 are set respectively.The front end of described first blade 38 is supported in first and rolls ring 36 and can roll ring 36 radially advance and retreat and divide the first pressing chamber 31a to first, the front end of described second blade 39 rolls ring 37 by elastic member 39a elastic support in second, and rolls ring 37 radially advance and retreat and divide the second pressing chamber 32a to second.First cylinder 31 and second cylinder 32 have the first steering channel 31c and the second steering channel 32c respectively, move so that first blade 38 and second blade 39 are done advance and retreat by the first steering channel 31c and the second steering channel 32c.
Refer again to Fig. 2, capacity variable rotary compressor provided by the present invention possesses in order to change its capacity optionally carries out compression and the idle running of refrigeration agent by the advance and retreat of controlling first blade 38 at the first pressing chamber 31a blade control unit 50.
Blade control unit 50 makes the high pressure side of air conditioner circulating system and the rear that a certain side in the low voltage side optionally is communicated in first blade 38, retreats towards the inside reach of the first pressing chamber 31a or from the first pressing chamber 31a according to pressure official post first blade 38 between first blade, 38 rears and the first pressing chamber 31a thus.When first blade 38 is in state towards first pressing chamber 31a reach, the front end of first blade 38 is supported in first and rolls ring 36, and the first pressing chamber 31a internal condition, first blade 38 is divided into the part that sucks refrigeration agent and the part of compressed refrigerant, and the first pressing chamber 31a carries out the compression of refrigeration agent thus; When first blade 38 was in the state that retreats from the first pressing chamber 31a, the front end of first blade 38 and first rolls ring 36 was separated by and can not divides the first pressing chamber 31a, and the first pressing chamber 31a dallies thus.
For this reason, blade control unit 50 comprises: first refrigerant pipe 51 that is connected with the high pressure side of air conditioner circulating system; Second refrigerant pipe 52 that is connected with the low voltage side of air conditioner circulating system; One end is connected in the 3rd refrigerant pipe 53 at the rear of first blade; Cross valve door 54 is so that the 3rd refrigerant pipe 53 optionally is connected with some refrigerant pipes in second refrigerant pipe 52 with first refrigerant pipe 51.An end of first refrigerant pipe 51 is connected with discharge tube 11 in the present embodiment, one end of second refrigerant pipe 52 is connected in the suction side stream of liquid container 40, and the other end of first refrigerant pipe 51, second refrigerant pipe 52 and the 3rd refrigerant pipe 53 is connected to cross valve door 54.
And then, when being connected the rear of working as first blade 38 with first refrigerant pipe 51 and being communicated with the high pressure side of air conditioner circulating system by cross valve door 54 the 3rd refrigerant pipe 53, the rear of first blade 38 is bigger with respect to the first pressing chamber 31a pressure, consequent pressure official post first blade 38 moves forward to the first pressing chamber 31a along the first steering channel 31c, and front end is supported in first and rolls ring 36 and divide the first pressing chamber 31a, and the first pressing chamber 31a carries out the compression of refrigeration agent thus.And, when the 3rd refrigerant pipe 53 is connected the rear of working as first blade 38 and is communicated with the low voltage side of air conditioner circulating system by cross valve door 54 with second refrigerant pipe 52, the rear of first blade 38 is littler with respect to first pressing chamber, 31 pressures, consequent pressure official post first blade 38 retreats along the first steering channel 31c from the first pressing chamber 31a and with first to roll ring 36 isolated, the first pressing chamber 31a dallies thus.
And, at the stream that guides refrigeration agent to flow into towards the first pressing chamber 31a anti-adverse current unit 60 is set according to capacity variable rotary compressor provided by the present invention, to pass through the first pressing chamber 31a and first refrigerant pipe, 51 adverse currents for process seal container 10 high-pressure refrigerants inner and the second pressing chamber 32a inside that prevent from dallying at the first pressing chamber 31a to liquid container 40.
As shown in Figure 5, anti-adverse current unit 60 is included in central authorities and possesses the valve seat 61 that can make refrigeration agent run through mobile intercommunicating pore 61a, be tabular and the structure being arranged to can advance and retreat towards valve seat 61 and the valve plate 62 that can open and close intercommunicating pore 61a along flow direction advance and retreat and its central position of refrigeration agent, be used for restriction valve plate 62 the advance and retreat distance be pin-shaped stop component 63, and stop component 63 is located on the stream that valve plate 62 is set.At this moment, the gabarit side of valve plate 62 has: the supported supporting portion 62a in ground that in the stream that anti-adverse current unit 60 is set, can advance and retreat, so that valve plate 62 can be advanced and retreat on stream; And the breakthrough part 62b that arrange isolated with the inwall of stream is so that refrigeration agent flows through by connecting between breakthrough part 62b and the stream inwall.Valve plate 62 is triangular in shape tabular substantially in the present embodiment, and its property at parts of edges and corners forms the supporting portion 62a that is supported in the stream inwall, and its limit portion forms breakthrough part 62b.
And, first suction pipe, 12 its middle reverse U shape shapes that bend in the present embodiment, and anti-adverse current unit 60 is located at the position that as above bends to the reverse U shape shape.If will prevent that adverse current unit 60 is located at the position that bends to the reverse U shape shape of first suction pipe 12, then valve plate 62 is towards the gravitational direction advance and retreat, namely towards upper and lower to advance and retreat, the noise that takes place in the middle of the advance and retreat process of valve plate 62 can reduce thus.
So, the result of capacity variable rotary compressor with the capacity variable rotary compressor that anti-adverse current unit 60 is set of anti-adverse current unit 60 more is not set by experiment, when hypothesis does not respectively arrange the refrigerating capacity of the capacity variable rotary compressor of anti-adverse current unit 60 and EER (coefficient of performance of refrigerating) and is 100%, the refrigerating capacity that the capacity variable rotary compressor of anti-adverse current unit 60 is set is 104.7%, EER is 104.5%, and performance has improved 4.7% and 4.5%. respectively
Anti-adverse current unit 60 is located at the position that bends to the reverse U shape shape of first suction pipe 12 in the present embodiment, but is not limited thereto, and any place that also can be located at the stream that connects liquid container 40 and the second pressing chamber 32a prevents the adverse current of refrigeration agent.That is, as shown in Figure 6, anti-adverse current unit 60 can be located in the first suction port 31b on first cylinder 31, or as shown in Figure 7, and anti-adverse current unit 60 also can be located at towards an end of inner outstanding first suction pipes 12 of liquid container 40.
In described embodiment, the first pressing chamber 31a has identical volume with the second pressing chamber 32a, thereby the capacity of capacity variable rotary compressor can be adjusted to 50% or 100%, but be not limited thereto, also can make the first pressing chamber 31a have different volumes with the second pressing chamber 32a, thereby can adjust the capacity of capacity variable rotary compressor neatly.
And its capacity of capacity variable rotary compressor can be adjusted to 50% or 100% among the described embodiment, but is not limited thereto, and can adjust the capacity of capacity variable rotary compressor in 50%~100% scope neatly by PMW control.

Claims (18)

1. a capacity variable rotary compressor comprises the compression and first pressing chamber of idle running and second pressing chamber that carries out the compression of refrigeration agent that optionally carry out refrigeration agent, it is characterized in that comprising:
First blade that described relatively first pressing chamber can arrange with advancing and retreat, described first pressing chamber carried out the compression of refrigeration agent when this first blade advanced, and this first blade when retreating described first pressing chamber dally;
The rear that blade control unit, this blade control unit make described first blade optionally is communicated with the high pressure side of air conditioner circulating system and a certain side in the low voltage side and makes described first blade advance and retreat;
Be located at the anti-adverse current unit on the stream that the guiding refrigeration agent flows into towards described first pressing chamber, to be used for preventing that when described first pressing chamber dallies refrigeration agent of described second pressing chamber from arriving the suction side of air conditioner circulating system by the described first pressing chamber adverse current.
2. capacity variable rotary compressor according to claim 1 is characterized in that described blade control unit comprises: first refrigerant pipe that is communicated with the high pressure side of air conditioner circulating system; Second refrigerant pipe that is communicated with the low voltage side of air conditioner circulating system; The 3rd refrigerant pipe, an end of the 3rd refrigerant pipe is connected in the rear of described first blade, and the other end and described first refrigerant pipe optionally are connected with some refrigerant pipes in described second refrigerant pipe; The cross valve door is to be used for that described the 3rd refrigerant pipe optionally is connected with some refrigerant pipes of described first refrigerant pipe and described second refrigerant pipe.
3. capacity variable rotary compressor according to claim 2 is characterized in that also comprising the discharge tube that the refrigeration agent that guides compressed high pressure is discharged,
One end of described first refrigerant pipe is connected in described discharge tube.
4. capacity variable rotary compressor according to claim 2 is characterized in that also comprising the liquid container that makes liquid refrigeration agent gasification flow into described first pressing chamber and described second compression afterwards,
One end of described second refrigerant pipe is connected in the suction side of described liquid container.
5. capacity variable rotary compressor according to claim 1 is characterized in that also comprising first suction pipe that guiding is sucked into the refrigeration agent of described first pressing chamber,
Described anti-adverse current unit is located in described first suction pipe.
6. capacity variable rotary compressor according to claim 5 is characterized in that the bent intermediate of described first suction pipe becomes the reverse U shape shape, and described anti-adverse current unit is located at the position that bends to the reverse U shape shape of described first suction pipe.
7. capacity variable rotary compressor according to claim 2, it is characterized in that also comprising first suction pipe that the inside that the liquid container that flow into described first pressing chamber and described second pressing chamber after the liquid refrigeration agent gasification and an end extended project to described liquid container and guiding are sucked into the refrigeration agent of described first pressing chamber
Described anti-adverse current unit is located at an end that extends described first suction pipe that projects to described liquid container inside.
8. capacity variable rotary compressor according to claim 1 is characterized in that also comprising first cylinder that forms described first pressing chamber, and a side of this cylinder is formed with first suction port that can make refrigeration agent be sucked into described first suction chamber,
Described anti-adverse current unit is located at described first suction port.
9. capacity variable rotary compressor according to claim 1 is characterized in that described anti-adverse current unit comprises: center side has can make refrigeration agent run through the valve seat of mobile intercommunicating pore; The tabular valve plate that can arrange towards described valve seat with advancing and retreat; Be pin-shaped stop component, with the distance for the advance and retreat that limit described valve plate,
The gabarit side of described valve plate has: the supporting portion that is supported in described stream inwall; The breakthrough part isolated with described stream inwall is so that refrigeration agent runs through mobile.
10. air conditioner circulating system, this air conditioner circulating system comprises capacity variable rotary compressor, it is characterized in that described capacity variable rotary compressor comprises: first pressing chamber that optionally carries out compression and the idle running of refrigeration agent; Carry out second pressing chamber of the compression of refrigeration agent; First blade that described relatively first pressing chamber can arrange with advancing and retreat, described first pressing chamber carried out the compression of refrigeration agent when this first blade advanced, and this first blade when retreating described first pressing chamber dally; The rear that blade control unit, this blade control unit make described first blade optionally is communicated with the high pressure side of air conditioner circulating system and a certain side in the low voltage side and makes first blade advance and retreat; Be located at the anti-adverse current unit on the stream that the guiding refrigeration agent flows into towards described first pressing chamber, to be used for preventing that when described first pressing chamber dallies refrigeration agent of described second pressing chamber from arriving the suction side of air conditioner circulating system by the described first pressing chamber adverse current.
11. air conditioner circulating system according to claim 10 is characterized in that described blade control unit comprises: first refrigerant pipe that is communicated with the high pressure side of air conditioner circulating system; Second refrigerant pipe that is communicated with the low voltage side of air conditioner circulating system; The 3rd refrigerant pipe, an end of the 3rd refrigerant pipe is connected in the rear of described first blade, and the other end and described first refrigerant pipe optionally are connected with some refrigerant pipes in described second refrigerant pipe; The cross valve door is to be used for that described the 3rd refrigerant pipe optionally is connected with some refrigerant pipes of described first refrigerant pipe and described second refrigerant pipe.
12. air conditioner circulating system according to claim 11 is characterized in that also comprising guiding from the discharge tube of the refrigeration agent of the high pressure of described capacity variable rotary compressor discharge,
One end of described first refrigerant pipe is connected in described discharge tube.
13. air conditioner circulating system according to claim 11 is characterized in that also comprising the liquid container of the suction side that is located at described capacity variable rotary compressor, so that refrigeration agent was depressurized expansion before flowing into first pressing chamber and second pressing chamber,
One end of described second refrigerant pipe is connected in the suction side stream of described liquid container.
14. air conditioner circulating system according to claim 11 is characterized in that also comprising first suction pipe that guiding is sucked into the refrigeration agent of described first pressing chamber,
Described anti-adverse current unit is located in described first suction pipe.
15. air conditioner circulating system according to claim 14 is characterized in that the bent intermediate of described first suction pipe becomes the reverse U shape shape, described anti-adverse current unit is located at the position that bends to the reverse U shape shape of described first suction pipe.
16. air conditioner circulating system according to claim 11, it is characterized in that also comprising: be located at the liquid container of the suction side of described capacity variable rotary compressor, so that refrigeration agent is depressurized expansion before flowing into described first pressing chamber and described second pressing chamber; One end extends first suction pipe of the inside project to described liquid container, being used for the refrigeration agent that guiding is sucked into described first pressing chamber,
Described anti-adverse current unit is located at an end that extends described first suction pipe that projects to described liquid container inside.
17. air conditioner circulating system according to claim 10, it is characterized in that described capacity variable rotary compressor also comprises first cylinder that forms described first pressing chamber, one side of this cylinder is formed with first suction port that can make refrigeration agent be sucked into first suction chamber
Described anti-adverse current unit is located at described first suction port.
18. air conditioner circulating system according to claim 10 is characterized in that described anti-adverse current unit comprises: center side has can make refrigeration agent run through the valve seat of mobile intercommunicating pore; The tabular valve plate that can arrange towards described valve seat with advancing and retreat; Be pin-shaped stop component, with the distance for the advance and retreat that limit described valve plate,
The gabarit side of described valve plate has: the supporting portion that is supported in described stream inwall; The breakthrough part isolated with described stream inwall is so that refrigeration agent runs through mobile.
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