CN1932290A - Variable capacity rotary compressor - Google Patents

Variable capacity rotary compressor Download PDF

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Publication number
CN1932290A
CN1932290A CNA2005101279287A CN200510127928A CN1932290A CN 1932290 A CN1932290 A CN 1932290A CN A2005101279287 A CNA2005101279287 A CN A2005101279287A CN 200510127928 A CN200510127928 A CN 200510127928A CN 1932290 A CN1932290 A CN 1932290A
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CN
China
Prior art keywords
blade
pressing chamber
control gear
rotary compressor
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2005101279287A
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Chinese (zh)
Inventor
李祯培
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CN1932290A publication Critical patent/CN1932290A/en
Pending legal-status Critical Current

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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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/18—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
    • F04C28/22—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • 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
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • 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
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston 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
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • 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
    • F04C2240/40—Electric motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Abstract

Disclosed is a variable capacity rotary compressor capable of enlarging range of the variable compressing capacity and exerting best efficiency in both small capacity running and large capacity running. The variable capacity rotary compressor comprises crusts of a first and second compressing chambers with different cubage; a first and second rollers arranged respectively inside the first and second compressing chambers; shafts for rotating the first and second rollers; a first and second vanes slidely supported with each other for setting off the first compressing chamber according to a radial advancing and retreating of the first roller; a third and fourth vanes slidely supported with each other for setting off the second compressing chamber according to a radial advancing and retreating of the second roller; a first vane controller for restricting or releasing the second vane; a second vane controller for restricting or releasing the fourth vane; and a driving motor rotating the shaft in forward and backward direction with different output power.

Description

Capacity variable rotary compressor
Technical field
The present invention relates to a kind of capacity variable rotary compressor, relate in particular to a kind of capacity variable rotary compressor that can change compression volume by the advance and retreat action of control blade.
Background technique
Korea S's publication communique " 10-2004-0021140 number " has disclosed a kind of a kind of capacity variable rotary compressor that can change compression volume by the advance and retreat action of control blade.This rotary compressor comprises the roller of the shell that forms the cylinder type pressing chamber, eccentric rotation in the pressing chamber of shell, according to the radially blade (vane) of advance and retreat of roller.Blade is made of first blade on the top that is separated from each other and second blade of bottom, and first blade-side is provided for retraining the constraint element of first blade as required, to be used to that first blade is isolated from the roller outer surface.This rotary compressor dallies when the constraint of the restrained unit of first blade, compresses when the constraint of the not restrained unit of first blade.Therefore, can be as required, first blade changes compression volume by being retrained or remove.
But this rotary compressor is owing to only have a pressing chamber, and regulates compression or idle running action and change compression volume thus by the control constraint element, is restricted in the time of therefore will changing compression volume according to various scopes.
Summary of the invention
The present invention proposes in order to solve aforesaid problem, and its purpose is to provide a kind of capacity variable rotary compressor, and so that be used for not only can be than the excursion that enlarged compression volume in the past, but also it is multiple that compression volume is changed to.
Another object of the present invention is to provide a kind of and can compress the capacity variable rotary compressor that all can bring into play optimum efficiency in service at small capacity compression operation and big capacity.
To achieve these goals, according to capacity variable rotary compressor provided by the present invention, it is characterized in that comprising: have first pressing chamber of different volume and the shell of second pressing chamber; Be separately positioned on first and second roller in described first and second pressing chamber; Be used to rotate the rotating shaft of described first and second roller; First blade that can support slidably mutually and second blade, this first blade and second blade time are divided described first pressing chamber according to the radially advance and retreat of described first roller; The 3rd blade and the quaterfoil that can support slidably mutually, the 3rd blade and quaterfoil the time are divided described second pressing chamber according to the radially advance and retreat of described second roller; The first blade control gear that described second blade is retrained or removes; The second blade control gear that described quaterfoil is retrained or removes; Be used for described rotating shaft is rotated to be forward and reverse drive motor.
And, described drive motor comprise the stator that is wound with coil and in described stator rotor rotated, the main coil of described stator coil is different with the umber of turn of time coil, to be used for the variation output different capacity according to the sense of rotation of described rotor.
And, the present invention makes the action of described first blade control gear and the described second blade control gear opposite, to be used for variation according to described rotating shaft sense of rotation any one pressing chamber among described first pressing chamber and described second pressing chamber is optionally compressed.
And, when the present invention compresses when described first pressing chamber, retrain described quaterfoil by the described second blade control gear; When described second pressing chamber compresses, retrain described second blade by the described first blade control gear.
And the described first blade control gear comprises: first cylinder that is arranged at described second blade-side; Can be arranged at first piston in described first cylinder, that be connected in described second blade with advancing and retreat; The first passage that is connected with described first cylinder internal; Connect described compressor and discharge the second channel of side and described first passage; The third channel that connects described compressor suction side and described first passage; Be arranged at described first, second, third passage and interconnect the first changeable channel valve at place.
And the described second blade control gear comprises: second cylinder that is arranged at described quaterfoil side; Can be arranged at with advancing and retreat in described second cylinder, be connected in described four-bladed second piston; The four-way that is connected with described second cylinder internal; Connect described compressor and discharge the five-way road of side and described four-way; The 6th passage that connects described compressor suction side and described four-way; Be arranged at described the 4th, the 5th, the 6th passage and interconnect the second changeable channel valve at place.
And, of the present invention second and the four-bladed width less than described first and three-vaned width.
Description of drawings
Fig. 1 represents that as the sectional view according to capacity variable rotary compressor structure provided by the present invention first pressing chamber is carrying out the view of compressed action;
Fig. 2 is the sectional view according to II-II ' line of Fig. 1;
Fig. 3 is the sectional view according to III-III ' line of Fig. 1;
Fig. 4 represents that as the sectional view according to capacity variable rotary compressor structure provided by the present invention second pressing chamber is carrying out the view of compressed action;
Fig. 5 is the sectional view according to V-V ' line of Fig. 4;
Fig. 6 is the sectional view according to VI-VI ' line of Fig. 4.
Main symbol description: 10 is seal container, and 20 is drive motor, and 21 are rotating shaft, 30 is compression set, and 31 is first pressing chamber, and 32 is second pressing chamber, 42 is first roller, and 43 is first blade, and 44 is second blade, 45 is first leaf spring, and 52 is second roller, and 53 is the 3rd blade, 54 is quaterfoil, 55 is second leaf spring, and 70 is the first blade control gear, and 80 is the second blade control gear.
Embodiment
Below, the preferred embodiment that present invention will be described in detail with reference to the accompanying is provided.
According to capacity variable rotary compressor provided by the present invention as shown in Figure 1, comprise the drive motor 20 that is arranged at seal container 10 inside upper part, the compression set 30 that is arranged at seal container 10 lower inside and is connected with rotating shaft 21 by drive motor 20.
Drive motor 20 comes drive compression device 30 by rotating shaft 21.Drive motor 20 comprises the cylinder type stator 22 that is fixed in seal container 10 internal surfaces, rotatably is arranged at the rotor 23 that inner and its central parts of stator 22 are incorporated into rotating shaft 21.This drive motor 20 can change rotational speed by electric control, and is made of the dc brushless motor (BLDC) that can carry out forward and counterrotating.
In addition, the stator 22 of drive motor 20 comprises 22a unshakable in one's determination and around the coil 22b of 22a unshakable in one's determination, though specifically expression in the accompanying drawings of coil 22b comprises main coil and time coil.And drive motor 20 makes main coil different with the umber of turn of time coil for the variation output different capacity according to rotor 23 sense of rotation.That is, in order to make drive motor 20 with bigger by being rotated in the forward when comparing counterrotating output power, the umber of turn of main coil is more than the umber of turn of time coil.This with will after the work of the compression set 30 chatted relevant, be for output when drive motor 20 carries out the high power capacity compression by counterrotating more high-power.
As shown in Figure 1 to Figure 3, compression set 30 comprises shell with separated first pressing chamber 31 and second pressing chamber 32, is arranged at first compression set 40 and second compression set 50 of first pressing chamber 31 and second pressing chamber 32 for pressurized gas respectively.
Described shell comprises: first main body 33 that forms the top of first pressing chamber 31; Form second main body 34 of the second big pressing chamber 32 of interior volume specific ratio first pressing chamber, this second main body 34 is arranged on first main body, 33 bottoms; The intermediate plate 35 that between first main body 33 and second main body 34, is provided with in order to divide first pressing chamber 31 and second pressing chamber 32; Be installed in first flange 36 and second flange 37 of first main body, 33 tops and second main body, 34 bottoms respectively, support rotating shaft 21 when being used to close on first pressing chamber 31 side opening and second pressing chamber, 32 open lower side.Rotating shaft 21 connects the center of first pressing chamber 31 and second pressing chamber 32, so that compression set 40,50 work of first pressing chamber 31 and second pressing chamber, 32 inside.
First compression set 40 and second compression set 50 comprise first eccentric part 41 and second eccentric part 51 of rotating shaft 21 outer surfaces that are arranged at each pressing chamber 31,32 respectively and rotatably are incorporated into first roller 42 and second roller 52 of first eccentric part 41 and second eccentric part, 51 outer surfaces for the internal surface with each pressing chamber 31,32 contacts rotation respectively.The eccentric direction that is arranged at first eccentric part 41 of rotating shaft 21 outer surfaces and second eccentric part 51 is opposite mutually.This is in order to keep the equilibrium of both sides, making the variation minimum of torque (torque) when rotating shaft 21 rotations, and reduces the vibration that is produced.
And, first compression set 40 comprises: the time divide first blade 43 and second blade 44 of first pressing chamber 31 by the radially advance and retreat of first pressing chamber 31 with the rotation of first roller 42, the face that is in contact with one another of this first blade 43 and second blade 44 can be supported slidably; With, with first leaf spring 45 of first blade 43 to the pressurization of first roller, 42 sides.That is, first pressing chamber 31 is divided by second blade 44 on the relative little top with width of first blade 43 of the big relatively bottom of width.
And, second compression set 50 comprises: divide the 3rd blade 53 of second pressing chamber 32 with the rotation of second roller 52 by the radially advance and retreat of second pressing chamber 32 time and the surface of contact of quaterfoil 54, the three blades 53 and quaterfoil 54 can be supported slidably; With, with second leaf spring 55 of the 3rd blade 53 to the pressurization of second roller, 52 sides.That is, second pressing chamber 32 is divided by the quaterfoil 54 on the relative little top with width of the 3rd blade 53 of the big relatively bottom of width.
And the present invention also comprises first blade control gear 70 that second blade 44 is retrained or removes and the second blade control gear 80 that quaterfoil 54 is retrained or removes.This be for: when second blade 44 during, first pressing chamber 31 is dallied by the constraint of the first blade control gear 70; When quaterfoil 54 is retrained by the second blade control gear 80, second pressing chamber 32 is dallied.To the concrete structure of this first blade control gear 70 and the second blade control gear 80, the back will be further described.
As shown in Figures 2 and 3, be formed for first suction port 61 and second suction port 62 in first main body 33 and second main body 34 respectively, connect first suction pipe 15 and second suction pipe 16 on these suction ports 61,62 respectively to first pressing chamber 31 and second pressing chamber, 32 inner inflow gas.First suction pipe 15 and second suction pipe 16 are to be sucked pipe arrangement 14 branches and formed by the refrigeration agent that prolongs from liquid-storage container (accumulator) 13 as shown in Figure 1.And, form first exhaust port 63 and second exhaust port 64 respectively in top first flange 36 and bottom second flange 37, be used for discharging the pressurized gas of each pressing chamber 31,32.Therefore, when compressor start, seal container 10 inside are maintained at high pressure conditions by the pressurized gas of being discharged by first exhaust port 63 and second exhaust port 64, and the pressurized gas of seal container 10 inside is directed into the outside by the discharge pipe arrangement 12 that is arranged at seal container 10 tops.
And, the present invention as shown in Figures 2 and 3, first suction port 61 and first exhaust port 63 that are positioned at first pressing chamber, 31 sides are opposite mutually with second suction port 62 that is positioned at second pressing chamber, 32 sides and second exhaust port, 64 its locations of structures.This be for: when drive motor 20 when being rotated in the forward, only carry out compression work at first pressing chamber 31; When drive motor 20 is pressed counterrotating, only carry out compression work at second pressing chamber 32.
As depicted in figs. 1 and 2, the first blade control gear 70 comprises first cylinder 71 that is arranged at second blade, 44 rear end side and is arranged in first cylinder 71 and by the advance and retreat direction first piston 72 advance and retreat, that be connected in second blade, 44 rear ends of second blade 44.And the first blade control gear 70 also comprises: be connected in the first pressure regulation tube 73a of first cylinder, 71 rear ends, be used to form the first passage 73 that is connected with first cylinder, 71 inside; The second pressure regulation tube 74a that forms and be connected with the first pressure regulation tube 73a from discharging pipe arrangement 12 branches is used to form the second channel 74 that is communicated with compressor discharge side and first passage 73; The 3rd pressure regulation tube 75a that forms and be connected with the first pressure regulation tube 73a from refrigeration agent suction pipe arrangement 14 branches is used to form the third channel 75 that is communicated with compressor suction side and first passage 73; Be arranged on the first changeable channel valve 76 of the first adjutage 73a, the second adjutage 74a and the 3rd pressure regulation tube 75a joint.The first changeable channel valve 76 can adopt usually by the three-way valve of controlling by automatically controlled signal.
As shown in figures 1 and 3, the second blade control gear 80 comprises second cylinder 81 that is arranged at quaterfoil 54 rear end side and is arranged in second cylinder 81 and by advance and retreat direction second piston 82 advance and retreat, that be connected in quaterfoil 54 rear ends of quaterfoil 54.And the second blade control gear 80 also comprises: be connected in the 4th pressure regulation tube 83a of second cylinder, 81 rear ends, be used to form the four-way 83 that is connected with second cylinder, 81 inside; The 5th pressure regulation tube 84a that forms and be connected with the 4th pressure regulation tube 83a from discharging pipe arrangement 12 branches is used to form the five-way road 84 that is communicated with compressor discharge side and four-way 83; The 6th pressure regulation tube 85a that forms and be connected with the 4th pressure regulation tube 83a from refrigeration agent suction pipe arrangement 14 branches is used to form the 6th passage 85 that is communicated with compressor suction side and four-way 83; Be arranged on the second changeable channel valve 86 of the 4th pressure regulation tube 83a, the 5th pressure regulation tube 84a and the 6th pressure regulation tube 85a joint.The second changeable channel valve 86 can adopt usually by the three-way valve of controlling by automatically controlled signal.
The following describes the working procedure of this capacity variable rotary compressor.
As shown in Figure 1 to Figure 3, when the work according to drive motor 20 made rotating shaft 21 rotate according to arrow A direction (forward), first pressing chamber 31 compressed, and second pressing chamber 32 dallies.At this moment, the first blade control gear 70 makes the work of the first changeable channel valve 76, so that second channel 74 is connected with first passage 73, and the second blade control gear 80 is worked the second changeable channel valve 86, so that the 6th passage 85 is connected with four-way 83.
At this moment, the first blade control gear 70 is because the discharge side pressure effects in first cylinder 71 make first piston 72 pressurizations second blade 44, thus second blade 44 along with the rotation of first roller 42 with the state that is contacted with first roller, the 42 outer surfaces action of advancing and retreat.And first blade 43 is because by 45 pressurizations of first leaf spring, thereby advances and retreat jointly with second blade 44.That is, first pressing chamber 31 is divided by first blade 43 and second blade 44 of common advance and retreat, thereby realizes compressed action.
In contrast, the second blade control gear 80 is because the suction side pressure effects in second cylinder 81 retreat second piston 82, thereby quaterfoil 54 leaves from the outer surface of second roller 52.That is, quaterfoil 54 is with restrained under the state that leaves second roller 52.Therefore, second pressing chamber 32 has only by the 3rd blade 53 of second leaf spring, 55 pressurizations advances and retreat, thereby dallies, as shown in Figure 3.
As mentioned above, when first pressing chamber 31 compresses, when dallying in second pressing chamber 32, because the internal volume of first pressing chamber 31 is less than the internal volume of second pressing chamber 32, thereby reduced compression volume.And, when in having only first pressing chamber 31, compressing, because by the advance and retreat of the first blade control gear 70 control, second blade 44, thereby can further reduce compression volume when the compressed action of adjusting first pressing chamber 31 and idle running (compress repeatedly and dally).That is, can make the compression volume of small capacity scope be adjusted to variation more.
,, when the work according to drive motor 20 makes rotating shaft 21 rotate according to arrow B direction (oppositely), compress in second pressing chamber 32, and dally in first pressing chamber 31 to shown in Figure 6 as Fig. 4.At this moment, the first blade control gear 70 makes the work of the first changeable channel valve 76, so that third channel 75 is connected with first passage 73, and the second blade control gear 80 is worked the second changeable channel valve 86, so that five-way road 84 is connected with four-way 83.
At this moment, the first blade control gear 70 is because the discharge side pressure effects in first cylinder 71 retreat first piston 72, thereby second blade 44 leaves from the outer surface of first roller 42.That is, second blade 44 is with restrained under the state that leaves first roller 42.So first pressing chamber 31 has only by first blade 43 of first leaf spring, 45 pressurizations advances and retreat, thereby dallies.
In contrast, the second blade control gear 80 is because the discharge side pressure effect in second cylinder 81 makes second piston, 82 pressurization quaterfoils 54, thereby quaterfoil 54 is along with the rotation of second roller 52 and to advance and retreat under the state that is contacted with second roller, 52 outer surfaces.And the 3rd blade 53 is because by 55 pressurizations of second leaf spring, thereby advances and retreat jointly with quaterfoil 54.That is, second pressing chamber 32 is divided by the 3rd blade 53 and the quaterfoil 54 of common advance and retreat, thereby realizes compressed action.
As mentioned above, dally, when second pressing chamber 32 compresses,, thereby increased compression volume when first pressing chamber 31 because the internal volume of second pressing chamber 32 is greater than the internal volume of first pressing chamber 31.And, when in having only second pressing chamber 32, compressing, because by the advance and retreat of the second blade control gear 80 control quaterfoils 54, thereby can further reduce compression volume when the compressed action of adjusting second pressing chamber 32 and idle running (compress repeatedly and dally).That is, can make the compression volume of big range of capacity also can be adjusted to variation more.
And, drive motor for compressor 20 provided by the present invention, because it is little by being rotated in the forward when realizing compression output power at first pressing chamber 31, and output power is big when second pressing chamber 32 is realized compression by counterrotating, thereby compresses operation and the big capacity compression efficient that all can bring into play the best in service at small capacity.That is, because drive motor 20 is:, output power is reduced to the compression operation that meets small capacity when by being rotated in the forward when making first pressing chamber 31 (small capacity) carry out compression; When make second pressing chamber 32 (big capacity) when carrying out compression by opposite spin, output power is increased to meeting jumbo compression operation; Thereby not only can reduce the energy consumption that there is no need to greatest extent, and can in all compression zones, bring into play optimum efficiency all the time.
In sum, according to capacity variable rotary compressor provided by the present invention, not only can optionally carry out the compressed action of any one pressing chamber in mutually different first pressing chamber of internal volume and second pressing chamber and change compression volume, but also can finely tune the variable range of compression volume by the blade control gear that compressed side is carried out in control, the band territory of compression volume can be pressed the effect that multistage is regulated thereby have.
In addition, the present invention is because drive motor output when being rotated in the forward the compression of carrying out first pressing chamber (small capacity) is suitable for the smaller power of small capacity compression operation, and output is suitable for the more high-power of big capacity compression operation when carrying out the compression of second pressing chamber (big capacity) by counterrotating, thereby has in small capacity compression operation and the big capacity compression effect that all can bring into play optimum efficiency in service.

Claims (7)

1, a kind of capacity variable rotary compressor is characterized in that comprising: have first pressing chamber of different volume and the shell of second pressing chamber; Be separately positioned on first and second roller in described first and second pressing chamber; Be used to rotate the rotating shaft of described first and second roller; First blade that can support slidably mutually and second blade, this first blade and second blade time are divided described first pressing chamber according to the radially advance and retreat of described first roller; The 3rd blade and the quaterfoil that can support slidably mutually, the 3rd blade and quaterfoil the time are divided described second pressing chamber according to the radially advance and retreat of described second roller; The first blade control gear that described second blade is retrained or removes; The second blade control gear that described quaterfoil is retrained or removes; Be used for described rotating shaft is rotated to be forward and reverse drive motor.
2, capacity variable rotary compressor according to claim 1, it is characterized in that described drive motor comprises the stator that is wound with coil and rotor rotated in described stator, and the main coil of described stator coil is different with the umber of turn of time coil, to be used for the variation output different capacity according to described rotor sense of rotation.
3, capacity variable rotary compressor according to claim 1, it is characterized in that the described first blade control gear is opposite with the action of the described second blade control gear, any one pressing chamber among described first pressing chamber and described second pressing chamber is optionally compressed to be used for variation according to described rotating shaft sense of rotation.
4, capacity variable rotary compressor according to claim 3 is characterized in that: when described first pressing chamber compresses, retrain described quaterfoil by the described second blade control gear; When described second pressing chamber compresses, retrain described second blade by the described first blade control gear.
5, capacity variable rotary compressor according to claim 1 is characterized in that the described first blade control gear comprises: first cylinder that is arranged at described second blade-side; Can be arranged at first piston in described first cylinder, that be connected in described second blade with advancing and retreat; The first passage that is connected with described first cylinder internal; Connect described compressor and discharge the second channel of side and described first passage; The third channel that connects described compressor suction side and described first passage; Be arranged at described first, second, third passage and interconnect the first changeable channel valve at place.
6, capacity variable rotary compressor according to claim 1 is characterized in that the described second blade control gear comprises: second cylinder that is arranged at described quaterfoil side; Can be arranged at with advancing and retreat in described second cylinder, be connected in described four-bladed second piston; The four-way that is connected with described second cylinder internal; Connect described compressor and discharge the five-way road of side and described four-way; The 6th passage that connects described compressor suction side and described four-way; Be arranged at described the 4th, the 5th, the 6th passage and interconnect the second changeable channel valve at place.
7, capacity variable rotary compressor according to claim 1, it is characterized in that described second and the four-bladed width less than described first and three-vaned width.
CNA2005101279287A 2005-09-13 2005-12-07 Variable capacity rotary compressor Pending CN1932290A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020050085276 2005-09-13
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