CN105422451B - The compression mechanism of rotary compressor and there is its rotary compressor - Google Patents
The compression mechanism of rotary compressor and there is its rotary compressor Download PDFInfo
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- CN105422451B CN105422451B CN201510903196.XA CN201510903196A CN105422451B CN 105422451 B CN105422451 B CN 105422451B CN 201510903196 A CN201510903196 A CN 201510903196A CN 105422451 B CN105422451 B CN 105422451B
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- air entry
- rotary compressor
- compression mechanism
- vane slot
- slide plate
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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
- 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
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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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
- 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
-
- 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
- F04C2240/50—Bearings
Abstract
The invention discloses a kind of compression mechanism and there is its rotary compressor, compression mechanism includes：Cylinder, piston, first slide plate and the second slide plate, first row gas port is sequentially provided with the rotation direction upper cylinder of piston, first vane slot, first air entry, second exhaust port, second vane slot and the second air entry, first air entry connects with the muffler of rotary compressor, first row gas port connects with the blast pipe of rotary compressor, second exhaust port is selectable to be connected with the second air entry, the head of first slide plate is only against on the outer surface of piston, second slide plate is selectable to stretch out the second vane slot, wherein when second exhaust port connects with the second air entry, direction of second slide plate along the second vane slot is slidably and its head is only against on the outer surface of piston.According to the compression mechanism of the rotary compressor of the present invention, can be achieved the transfiguration of rotary compressor, Two-stage Compression function, and it is simple in construction, operating efficiency is high.
Description
Technical field
The present invention relates to compressor apparatus field, a kind of compression mechanism more particularly, to rotary compressor and there is it
Rotary compressor.
Background technology
Transfiguration, double-stage compressor in correlation technique typically use twin-tub pump body design, and the twin-tub pump housing is complicated, production
Cost is high, and operating efficiency is low, and after compressor failure, maintenance cost is high.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is to propose a kind of compression mechanism of rotary compressor, and the compression mechanism has simple in construction, operating efficiency
The advantages that high, transfiguration, the Two-stage Compression function of rotary compressor can be achieved.
It is another object of the present invention to propose a kind of rotary compressor with compression mechanism.
The compression mechanism of the rotary compressor of embodiment according to a first aspect of the present invention, including：Cylinder and eccentric turn
The dynamic piston being located in the cylinder, be sequentially provided with the rotation direction of the piston on the cylinder first row gas port,
First vane slot, the first air entry, second exhaust port, the second vane slot and the second air entry, wherein first air entry with
The muffler connection of the rotary compressor, the first row gas port connect with the blast pipe of the rotary compressor, institute
State that second exhaust port is selectable to be connected with second air entry；First slide plate, first slide plate are slidably disposed in institute
State in the first vane slot, and the head of first slide plate is only against on the outer surface of the piston；Second slide plate, described second
Slide plate is located in second vane slot and selectable stretching second vane slot, wherein when the second exhaust port and institute
When stating the connection of the second air entry, direction of second slide plate along second vane slot slidably and its head be only against it is described
On the outer surface of piston.
The compression mechanism of rotary compressor according to embodiments of the present invention, when second exhaust port and the second air entry do not connect
When logical, the second slide plate does not stretch out the second vane slot, that is to say, that the second slide plate is not as piston moves reciprocatingly, so as to rotate
Formula compressor realizes full capacity operation at full capacity；When second exhaust port connects with the second air entry, the second slide plate is along second
The direction of vane slot is slidably and its head is only against on the outer surface of piston, that is to say, that the second slide plate is past as piston is done
Multiple motion, the Two-stage Compression of rotary compression chamber is realized, and compression mechanism is simple in construction, operating efficiency is high.
In some embodiments of the invention, be provided with plug in second air entry, the plug is in conducting described the
The conduction position of two exhaust outlets and second air entry and block cutting for the second exhaust port and second air entry
It may move between disconnected position.
In some embodiments of the invention, the tail end of the plug is connected with spring, and the compression mechanism also includes four
Port valve, four valve ports of the four-way valve respectively with the muffler, blast pipe, the afterbody of the second air entry and the second vane slot
Afterbody connection, and the muffler connects one in second air entry and second vane slot, and described in controlling
Blast pipe connects another in second air entry and second vane slot.
In some embodiments of the invention, be provided with middle pressure chamber in the compression mechanism, the second exhaust port with it is described
Second air entry is connected by medium pressure chamber.
In some embodiments of the invention, the compression mechanism of the rotary compressor also includes bearing, the bearing
It is located at the end of the cylinder and medium pressure chamber is formed in the bearing.
In some embodiments of the invention, the bearing is located at the lower end of the cylinder, and the bearing includes main body
And end cap, the open at its lower end of the main body and the end cap cover the lower end of the main body, between the end cap and the main body
Limit medium pressure chamber.
In some embodiments of the invention, communicating passage, the communicating passage difference are additionally provided with the compression mechanism
Second air entry and medium pressure chamber are connected, the plug opens the communicating passage in the conduction position, described
Plug it is described block position when block the communicating passage.
In some embodiments of the invention, the cylinder is provided with cylinder through hole, and the bearing is provided with bearing cross hole,
The cylinder through hole is connected with the bearing cross hole to form the communicating passage.
In some embodiments of the invention, the communicating passage towards the opening of second air entry positioned at described the
On the bottom wall of two air entries.
The rotary compressor of embodiment according to a second aspect of the present invention, including implemented according to the above-mentioned first aspect of the present invention
The compression mechanism of the rotary compressor of example.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Fig. 1 is the schematic diagram of rotary compressor according to embodiments of the present invention；
Fig. 2 is the top view of rotary compressor according to embodiments of the present invention；
Fig. 3 is a sectional view of the compression mechanism of rotary compressor according to embodiments of the present invention；
Fig. 4 is another sectional view of the compression mechanism of rotary compressor according to embodiments of the present invention.
Reference：
Compression mechanism 100；
Cylinder 1；First row gas port 11；First air entry 13；
Second exhaust port 14；Second air entry 16；
Piston 2；Muffler 3；Blast pipe 4；First slide plate 5；Second slide plate 6；Plug 7；Spring 8；Middle pressure chamber 101；
Bearing 102；Main body 103；End cap 104；Communicating passage 105；Cylinder through hole 106；Bearing cross hole 107；
Bent axle 108；Reservoir 109；First chamber 110；Second chamber 111；3rd exhaust outlet 112；
Rotary compressor 200；Four-way valve 201.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " on ", " under ", "front", "rear", " left side ",
The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are based on shown in the drawings
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.This
Outside, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit finger
The quantity of bright indicated technical characteristic.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include
One or more this feature.In the description of the invention, " multiple " are meant that two or more, unless otherwise bright
It is really specific to limit.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be to mechanically connect, can be joined directly together, can also be indirectly connected by intermediary, can be the company of two element internals
Logical or two elements interaction relationship.For the ordinary skill in the art, can understand as the case may be
The concrete meaning of above-mentioned term in the present invention.
The compressor of the rotary compressor 200 of embodiment according to a first aspect of the present invention is described below with reference to Fig. 1-Fig. 4
Structure 100.
As Figure 1-Figure 4, the compression mechanism 100 of the rotary compressor 200 of embodiment according to a first aspect of the present invention
Including：Cylinder 1, piston 2, the first slide plate 5 and the second slide plate 6.
Specifically, with reference to figure 1, piston 2 is located in cylinder 1 and eccentric rotation, specifically, rotary compressor 200
Compression mechanism 100 in bent axle 108 eccentric rotary can be carried out in the cylinder 1 with piston 2, so as to realize in cylinder 1
The compression of refrigerant.
Further, first row gas port 11, the first vane slot, are sequentially provided with the rotation direction upper cylinder 1 of piston 2
One air entry 13, second exhaust port 14, the second vane slot and the second air entry 16, that is to say, that for example shown in Fig. 2, piston 2 can
Rotate counterclockwise, i.e., in the counterclockwise direction, first row gas port 11, the first vane slot, the first air entry are sequentially provided with cylinder 1
13rd, second exhaust port 14, the second vane slot and the second air entry 16.Wherein, first row gas port 11, the first vane slot, first inhale
Gas port 13 is arranged in close proximity to each other, and second exhaust port 14, the second vane slot and the second air entry 16 are arranged in close proximity to each other.
Wherein the first air entry 13 connects with the muffler 3 of rotary compressor 200, first row gas port 11 and rotary pressure
The blast pipe 4 of contracting machine 200 connects, specifically, it is necessary to the low temperature compressed during rotary compressor 200 works
The refrigerant of low pressure can be entered in cylinder 1 from the reservoir 109 of rotary compressor 200 by the first air entry 13, passed through
In cylinder 1 after a series of compression, it is drained into by first row gas port 11 in blast pipe 4, the HTHP after being compressed
Refrigerant finally discharges compressor from blast pipe 4.
Second exhaust port 14 is selectable to be connected with the second air entry 16, that is to say, that is worked in rotary compressor 200
During, according to the demand of compression horsepower, rotary compressor 200 is when full capacity is run at full capacity, second exhaust port 14 with
Second air entry 16 is not connected, and when the Smaller load of rotary compressor 200, Two-stage Compression are run, second exhaust port 14 and second is inhaled
Connected between gas port 16.
Specifically, it is slidably disposed in reference to figure 2- Fig. 4, the first slide plate 5 in the first vane slot, and the head of the first slide plate 5
Portion is only against on the outer surface of piston 2, that is to say, that during bent axle 108 is with the eccentric rotary of piston 2, in a rotation
In the turn-week phase, the first slide plate 5 can be completed to stretch out the action retracted with the rotation of piston 2 in the first vane slot.
Second slide plate 6 is located in the second vane slot and the second vane slot of selectable stretching, specifically, works as second exhaust
Mouth 14 is not connected with the second air entry 16, and the second slide plate 6 is maintained in the second vane slot when not moved with piston 2, gas
Cylinder 1 forms a compression chamber, and refrigerant enters from the first air entry 13, discharged after being fully compressed from first row gas port 11, revolves
Rotary compressor 200 realizes the operation of full capacity at full capacity.
When second exhaust port 14 connects with the second air entry 16, and direction of second slide plate 6 along the second vane slot can be slided
When dynamic and its head is only against on the outer surface of piston 2, specifically, in process of the bent axle 108 with the eccentric rotary of piston 2
In, in a swing circle, the second slide plate 6 can be completed to stretch out the dynamic of retraction with the rotation of piston 2 in the second vane slot
Make.Because in the rotary course of piston 2, the head of the head of the first slide plate 5 and the second slide plate 6 is all only against the outer of piston 2
On surface, so as to be separated into first chamber 110 and second chamber 111 by the first slide plate 5, the slide plate 6 of piston 2 and second in cylinder 1,
Refrigerant in first air entry 13 can be drained into first chamber 110 first, and piston 2 is during rotation, first to first
Refrigerant in chamber 110 carries out first order compression, and the refrigerant after first order compression can discharge from second exhaust port 14, due to now
Connected between second exhaust port 14 and the second air entry 16, so as to which the refrigerant that second exhaust port 14 is discharged can be inhaled by second
Gas port 16 is come back in the second chamber 111 in cylinder 1, and in second chamber 111, refrigerant can compress by the second level, the
Refrigerant after two-stage compression is finally discharged into blast pipe 4 from first row gas port 11, and then discharges compressor from blast pipe 4.Thus,
When two exhaust outlets 14 connect with the second air entry 16, refrigerant can complete first order compression and second level compression in cylinder 1, really
The low capacity of rotary compressor 200, the Two-stage Compression of underload.
The compression mechanism 100 of rotary compressor 200 according to embodiments of the present invention, when second exhaust port 14 and second is inhaled
Gas port 16 does not connect, and when the second slide plate 6 does not stretch out the second vane slot, that is to say, that the second slide plate 6 is not as piston 2 is done
Move back and forth, so as to which rotary compressor 200 realizes full capacity operation at full capacity；When the air entry of second exhaust port 14 and second
16 connections, and direction of second slide plate 6 along the second vane slot is slidably and its head is only when being against on the outer surface of piston 2,
That is, the second slide plate 6 moves reciprocatingly with piston 2, the Two-stage Compression of rotary compression chamber is realized, and it is the transfiguration, double
The compression mechanism 100 of the rotary compressor 200 of level is completed in the single cylinder 1, so as to the structure of compression mechanism 100 is simple,
Cost is low, is easy to produce and processes, easy to implement.
In some embodiments of the invention, with reference to figure 2- Fig. 3, plug 7, plug 7 can be provided with the second air entry 16
Turn on the conduction position of the air entry 16 of second exhaust port 14 and second and block the air entry 16 of second exhaust port 14 and second
Block between position and may move, specifically, plug 7 be in block the air entry 16 of second exhaust port 14 and second block position
Put, now, second exhaust port 14 does not connect with the second air entry 16, meanwhile, by controlling the second slide plate 6 to keep not stretching out second
Vane slot, the second slide plate 6 is not as piston 2 moves reciprocatingly, so as to which rotary compressor 200 realizes full capacity fortune at full capacity
OK；The conduction position of the air entry 16 of second exhaust port 14 and second is being turned at plug 7, now second exhaust port 14 and second
Air entry 16 is connection, meanwhile, by controlling the second slide plate 6 as piston 2 moves reciprocatingly, so as to realize that low capacity is small negative
Lotus, Two-stage Compression.
Further, referring to figs. 2 and 3 the tail end of plug 7 is connected with spring 8, and rotary compressor 200 also includes four
Port valve 201, four valve ports of four-way valve 201 respectively with muffler 3, blast pipe 4, the second air entry 16 afterbody and the second slide plate
The afterbody connection of groove, and muffler 3 connects one in the second air entry 16 and the second vane slot, and control blast pipe 4 to connect
Another in second air entry 16 and the second vane slot.Specifically, when muffler 3 connects the afterbody of the second air entry 16
When, blast pipe 4 connects the afterbody of the second vane slot, and now, the second air entry 16 is in low-pressure state, so as to which plug 7 is in spring 8
In the presence of be in the conduction position of the conducting air entry 16 of second exhaust port 14 and second, the second vane slot is in high pressure conditions,
So as to the second slide plate 6 head can only be against on the outer surface of piston 2, so as to rotary compressor can realize low capacity Smaller load,
Two-stage Compression；When muffler 3 connects the afterbody of the second vane slot, blast pipe 4 connects the afterbody of the second air entry 16, now,
Second air entry 16 is in high pressure conditions, and the suction of second exhaust port 14 and second is blocked so as to which plug 7 is in the presence of high pressure
Gas port 16 blocks position, and the second vane slot is in low-pressure state, so as to which the second slide plate 6 is maintained in the second vane slot, so as to
Rotary compressor can realize that full capacity is operated at full capacity.
In some embodiments of the invention, with reference to figure 3 and Fig. 4, compression mechanism 100 is interior to be provided with middle pressure chamber 101, second row
Gas port 14 is connected with the second air entry 16 by middle pressure chamber 101, that is to say, that the first order pressure discharged from second exhaust port 14
The refrigerant of the medium temperature and medium pressure state of contracting can be entered in middle pressure chamber 101 first, then enter the second suction out of middle pressure chamber 101 again
In gas port 16, consequently facilitating the circulation of refrigerant is unobstructed.
Further, the compression mechanism 100 of rotary compressor 200 also includes bearing 102, and bearing 102 is located at cylinder 1
End (such as bottom of the cylinder 1 shown in Fig. 3 and Fig. 4 specific example).Specifically, with reference to figure 3, bearing 102 can
Pass through the with the refrigerant of the medium temperature and medium pressure state of first order compression with the 3rd exhaust outlet 112, discharged from second exhaust port 14
Three exhaust outlets 112 are entered in the middle pressure chamber 101 of bearing 102, and middle pressure chamber 101 is formed in bearing 102, so as to effectively simplify
The structure of compression mechanism 100, it is easy to the formation of middle pressure chamber 101.
Certainly the present invention is not limited thereto, and middle pressure chamber 101 can also be arranged in cylinder 1, or middle pressure chamber 101 can be with
It is arranged in cylinder 1 and bearing 102.
Preferably, with reference to figure 3 and Fig. 4, bearing 102 is located at the lower end of cylinder 1, and bearing 102 includes main body 103 and end cap
104, the lower end of open at its lower end and end cap 104 the capping main body 103 of main body 103, in being limited between end cap 104 and main body 103
Chamber 101 is pressed, consequently facilitating middle pressure chamber 101 forms closed space, and bearing 102 is simple in construction, is easy into production and installation.
Further, with reference to figure 3, communicating passage 105 is additionally provided with compression mechanism 100, communicating passage 105 is respectively communicated with
Two air entries 16 and middle pressure chamber 101, plug 7 open communicating passage 105 in conduction position, and plug 7 blocks when blocking position
Communicating passage 105.Specifically, plug 7 is in when blocking position closure communicating passage 105, controls second exhaust port 14 and the
Do not connected between three exhaust outlets 112, while control the second slide plate 6 not stretch out the second vane slot, the second slide plate 6 is not with piston 2
Move reciprocatingly, so as to which rotary compressor 200 realizes full capacity operation at full capacity；Plug 7 is in conduction position conducting and connected
During circulation passage 105, while control and connect between the exhaust outlet 112 of second exhaust port 14 and the 3rd, so as to be pressed in first chamber 110
The refrigerant of contracting is discharged from second exhaust port 14, and middle pressure chamber 101 is entered by the 3rd exhaust outlet 112, then logical from middle pressure chamber 101
Cross communicating passage 105 and enter the second air entry 16, be flowed into second chamber 111 and carry out second level compression, finally from first
Exhaust outlet 11 is discharged, so as to which rotary compressor can realize low capacity Smaller load, Two-stage Compression.
Need exist for explanation, the 3rd exhaust outlet 112 can by exhaust valve component come control the 3rd exhaust outlet 112 with
Conducting state between second exhaust port 14, for example, when the full capacity of rotary compressor 200 is operated at full capacity, the 3rd exhaust
Controlled between mouth 112 and second exhaust port 14 by exhaust valve component so that the two is not turned on, during the refrigerant compressed does not enter
Press chamber 101；In the low capacity Smaller load of rotary compressor 200, Two-stage Compression work, the 3rd exhaust outlet 112 and second exhaust
Controlled between mouth 14 by exhaust valve component so that the two is turned on, so as to may be such that the refrigerant of first order compression smoothly enters
In middle pressure chamber 101, and it can subsequently complete the low capacity Smaller load of rotary compressor 200, Two-stage Compression work.The present invention's
In some embodiments, with reference to figure 3, cylinder 1 is provided with cylinder through hole 106, and bearing 102 is provided with bearing cross hole 107, cylinder through hole
106 connect with bearing cross hole 107 to form communicating passage 105, so as to be easy to the processing of communicating passage 105 and composition, simplify
The structure of compression mechanism 100.
In some embodiments of the invention, opening (such as in Fig. 3 institute of the communicating passage 105 towards the second air entry 16
The upper end of the opening for the communicating passage 105 shown) positioned at the second air entry 16 bottom wall on, consequently facilitating the conducting of plug 7 and cut
It is disconnected, and then the operation stability of compression mechanism 100 can be improved.
The rotary compressor 200 of embodiment according to a second aspect of the present invention, including according to the above-mentioned first aspect of the present invention
The compression mechanism 100 of the rotary compressor 200 of embodiment.Rotary compressor 200 according to embodiments of the present invention other
Form such as motor and operation is all for those of ordinary skills known, be not detailed herein.
Rotary compressor 200 according to embodiments of the present invention, by setting the rotary of above-mentioned first aspect embodiment
The compression mechanism 100 of compressor 200, so as to realized in single cylinder 1 transfiguration, twin-stage compression work pattern, have
It is simple in construction, cost is low, the advantages that being easy to produce and processing.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment or example of the present invention.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (8)
- A kind of 1. compression mechanism of rotary compressor, it is characterised in that including：Cylinder and the piston being located in the cylinder of eccentric rotation, in the rotation direction of the piston on the cylinder according to It is secondary to be provided with first row gas port, the first vane slot, the first air entry, second exhaust port, the second vane slot and the second air entry, wherein First air entry connects with the muffler of the rotary compressor, the first row gas port and the rotary compressor Blast pipe connection, the second exhaust port is selectable to be connected with second air entry；First slide plate, first slide plate are slidably disposed in first vane slot, and the head of first slide plate is stopped It is against on the outer surface of the piston；Second slide plate, second slide plate is located in second vane slot and selectable stretching second vane slot, its In when the second exhaust port connects with second air entry, direction of second slide plate along second vane slot can Slide and its head is only against on the outer surface of the piston, be provided with plug in second air entry, the plug is turning on The conduction position of the second exhaust port and second air entry and block the second exhaust port and second air-breathing Mouthful block between position and may move, the tail end of the plug is connected with spring, and the compression mechanism of the rotary compressor is also Including four-way valve, four valve ports of the four-way valve respectively with the muffler, blast pipe, the afterbody of the second air entry and second The afterbody connection of vane slot, and the muffler connects one in second air entry and second vane slot, and control Make another in blast pipe connection second air entry and second vane slot.
- 2. the compression mechanism of rotary compressor according to claim 1, it is characterised in that be provided with the compression mechanism Middle pressure chamber, the second exhaust port are connected with second air entry by medium pressure chamber.
- 3. the compression mechanism of rotary compressor according to claim 2, it is characterised in that also including bearing, the axle Hold the end for being located at the cylinder and medium pressure chamber is formed in the bearing.
- 4. the compression mechanism of rotary compressor according to claim 3, it is characterised in that the bearing is located at the gas The lower end of cylinder, and the bearing includes main body and end cap, the open at its lower end of the main body and end cap covers the main body Lower end, medium pressure chamber is limited between the end cap and the main body.
- 5. the compression mechanism of rotary compressor according to claim 4, it is characterised in that also set in the compression mechanism There is communicating passage, the communicating passage is respectively communicated with second air entry and medium pressure chamber, and the plug is in the conducting Open the communicating passage during position, the plug it is described block position when block the communicating passage.
- 6. the compression mechanism of rotary compressor according to claim 5, it is characterised in that the cylinder is provided with cylinder Through hole, the bearing are provided with bearing cross hole, and the cylinder through hole is connected with the bearing cross hole to form the communicating passage.
- 7. the compression mechanism of rotary compressor according to claim 6, it is characterised in that the communicating passage is towards institute The opening of the second air entry is stated on the bottom wall of second air entry.
- 8. a kind of rotary compressor, it is characterised in that including the rotary compression according to any one of claim 1-7 The compression mechanism of machine.
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| CN201510903196.XA CN105422451B (en) | 2015-12-08 | 2015-12-08 | The compression mechanism of rotary compressor and there is its rotary compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510903196.XA CN105422451B (en) | 2015-12-08 | 2015-12-08 | The compression mechanism of rotary compressor and there is its rotary compressor |
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| CN105422451A CN105422451A (en) | 2016-03-23 |
| CN105422451B true CN105422451B (en) | 2017-11-17 |
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|---|---|---|---|---|
| CN107120276B (en) * | 2017-06-29 | 2021-01-26 | 广东美芝制冷设备有限公司 | Multi-cylinder rotary type compression assembly and multi-cylinder rotary type compressor |
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