CN105134595B - Compressor - Google Patents
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- CN105134595B CN105134595B CN201510595500.9A CN201510595500A CN105134595B CN 105134595 B CN105134595 B CN 105134595B CN 201510595500 A CN201510595500 A CN 201510595500A CN 105134595 B CN105134595 B CN 105134595B
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Abstract
The invention discloses a kind of compressor, including：Getter assembly, gas supply assembly, injection valve, first order compression assembly and be located at the first order compression assembly axial direction both sides second level compression assembly and clutch shaft bearing component, first order compression assembly has the first compression chamber, second level compression assembly has the second compression chamber, clutch shaft bearing component has the intermediate cavity being respectively communicated with the exhaust outlet of the first compression chamber and the air entry of the second compression chamber, getter assembly is used to supply first pressure refrigerant to the first compression chamber, gas supply assembly is used to supply second pressure refrigerant or the 3rd pressure refrigerant to intermediate cavity, when second pressure refrigerant is supplied to intermediate cavity, second level compression assembly can work, when three pressure refrigerants is supplied to intermediate cavity, second level compression assembly does not work, injection valve is used to feed second pressure refrigerant to the first compression chamber.Compressor of the invention, is capable of achieving single-stage twin-stage switchover operation, and efficiency is high during single-stage operation.
Description
Technical field
The present invention relates to Compressor Technology field, more particularly, to a kind of compressor.
Background technology
Pointed out in correlation technique, air conditioner load changes with the change of external condition, when air-conditioning system load is big,
As ultralow temperature is heated, because the specific volume of refrigerant is big, compressor air suction mass flow reduces, except causing compressor heating capacity
Outside being greatly lowered, due to mass flow reduction, compressor oil return is difficult, and the heat that refrigerant is taken away is reduced, and is easily caused
Compressor pump weares and teares and motor reliability declines, and causes that compressor assembly efficiency is low, under such conditions, using twin-stage
Jet is compressed, and can be effectively increased gas mass flow, improves system heating capacity and efficiency, and improve pump housing lubrication.
But in centre during the operating mode refrigerating operaton such as refrigeration, the pressure ratio of compressor is small, and single stage compress efficiency is improved, if using
If Two-stage Compression, because simultaneously two cylinders work, friction power loss can be caused to increase increases fast than cold, while system may be caused
The situation of cryogen overcompression, causing the efficiency of Two-stage Compression reduces.Thus, person skilled proposes the change of single twin-stage switching
Capacity compressor, single mode is used when loading low, when loading big, using Bi-level mode, to reach raising compressor capacity
With the purpose of efficiency.However, compressor is when single mode is run, due to dragging a piston operation, its power can be than common more
Compressor is high, so as to influence the final efficiency of compressor.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the invention reside in proposition one
Compressor is planted, the compressor can realize varying capacity multistage jet operation.
Compressor of the invention, including：Housing；Compression mechanism, the compression mechanism is located in the housing, described
Compression mechanism includes first order compression assembly and is located at the second level compression assembly of first order compression assembly axial direction both sides
With clutch shaft bearing component, the clutch shaft bearing component has an intermediate cavity, and the first order compression assembly has the first compression chamber, institute
Second level compression assembly is stated with the second compression chamber, the intermediate cavity respectively with the exhaust outlet of first compression chamber and described the
The air entry connection of two compression chambers, the exhaust outlet of second compression chamber is communicated to the inside of the housing；Getter assembly, it is described
Getter assembly is used to supply first pressure refrigerant to first compression chamber；Gas supply assembly, the gas supply assembly is used for described
Intermediate cavity supplies second pressure refrigerant or the 3rd pressure refrigerant, when the second pressure refrigerant is supplied to the intermediate cavity, institute
Stating second level compression assembly can work, when three pressure refrigerant is supplied to the intermediate cavity, the second level compression group
Part does not work；And injection valve, the injection valve is used to feed the second pressure refrigerant to first compression chamber, wherein,
, less than the pressure of the second pressure refrigerant, the pressure of the second pressure refrigerant is less than institute for the pressure of the first pressure refrigerant
State the pressure of the 3rd pressure refrigerant.
Compressor of the invention, it is possible to achieve varying capacity multistage jet operation, so as to improve compressor various
Adaptability under environment temperature, especially improves compressor heating capacity under cryogenic and efficiency, while improving
Compressor performance under low load conditions.
In one embodiment of the invention, the inside of the housing connects with to the supply group with the gas supply assembly
Part provides the 3rd pressure refrigerant.
In one embodiment of the invention, the second level compression assembly includes：Second cylinder, on second cylinder
With second compression chamber and the second vane slot, the tip of second vane slot is connected with second compression chamber, described
The rear end of the second vane slot connects with the inside of the housing；With the second slide plate, second slide plate is slidably disposed in described
In second vane slot.
Further, the second level compression assembly is further included：It is located at the second of the second cylinder axial direction both sides
Bearing assembly and baffle assembly, at least one of the second bearing component and the baffle assembly are provided with for adsorbing
State the magnetic element of the second slide plate.
In one embodiment of the invention, the compression mechanism further include to be located at the first order compression assembly and
Baffle assembly between the second level compression assembly, the first order compression assembly includes：First cylinder and first piston, institute
State and first compression chamber is formed with the first cylinder, the first piston is rollably located in first compression chamber, institute
The jet for being formed with compression mechanism and being connected with first compression chamber is stated, the injection valve is configured to when the second pressure
The pressure of refrigerant opens the jet, the pressure when the second pressure refrigerant when being more than the pressure in first compression chamber
The jet is closed during less than pressure in first compression chamber.
Alternatively, the jet is formed on first cylinder, is formed further with first cylinder and institute
The injection channel of jet connection is stated, the injection valve is the valve member being arranged on the injection channel.
Alternatively, the jet is formed on the baffle assembly and/or the clutch shaft bearing component, the jet
It is configured to be opened and closed by the first piston during the first piston is rotated, the injection valve is described the
One piston.
Alternatively, be formed with the baffle assembly and/or the clutch shaft bearing component jet and with the spray
The injection channel of loophole connection, the injection valve includes the valve member being arranged on the injection channel.
Further, the jet be further configured to the first piston rotate during can be by described first
Piston is opened and closed, and the injection valve further includes the first piston.
In one embodiment of the invention, the clutch shaft bearing component includes clutch shaft bearing and cover plate, the first axle
Hold and be located between the first order compression assembly and the cover plate, limited between the clutch shaft bearing and the cover plate it is described in
Between chamber.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Fig. 1 is the schematic diagram of compressor according to embodiments of the present invention；
Fig. 2 is the sectional view of the compressor shown in Fig. 1；
Fig. 3 is the schematic diagram of the compression mechanism shown in Fig. 2；
Fig. 4 is the sectional view of the line A-A along Fig. 3；
Fig. 5 is the explosive view of the injection valve shown in Fig. 4；
Fig. 6 is the schematic diagram of compression mechanism in accordance with another embodiment of the present invention；
Fig. 7 is the schematic diagram of the compression mechanism according to further embodiment of the present invention.
Reference：
100：Compressor；
1：Housing；
2：Motor；21：Stator；22：Rotor；
3：Compression mechanism；31：First order compression assembly；311：First cylinder；3111：Air entry；
312：First slide plate；313：Spring；314：First piston；
32：Second level compression assembly；321：Second cylinder；
322：Second slide plate；323：Second piston；
324：Magnetic element；
33：Clutch shaft bearing component；331：Clutch shaft bearing；3311：First row air valve；332：Cover plate；
34：Second bearing component；341：Second bearing；3411：Second row air valve；
342：Muffler；3421：Exhaust perforation；
35：Baffle assembly；351：First dividing plate；352：Second partition；
36：Bent axle；361：First eccentric part；362：Second eccentric part；
4：Getter assembly；41：Reservoir；42：Air intake duct；
5：Gas supply assembly；51：Triple valve；52：Air supply pipe；
53：High pressure breather pipe；54：Middle pressure breather pipe；55：Playpipe；
6：Injection valve；61：Lift stopper；62：Check valve sheet；63：Screw；
S1：First exhaust passage；S2：Air supply channel；S3：Second exhaust passage；S4：Injection channel；S5：Jet；
C1：Intermediate cavity；C2：First compression chamber；C3：Second compression chamber；C4：Silencing cavity.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Following disclosure provides many different embodiments or example is used for realizing different structure of the invention.For letter
Change disclosure of the invention, hereinafter the part and setting to specific examples are described.Certainly, they are only merely illustrative, and
Purpose does not lie in the limitation present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is again the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity.This
Outward, the invention provides various specific technique and material example, but those of ordinary skill in the art can be appreciated that
The use of the applicable property and/or other materials of other techniques.
Compressor 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 7.
As shown in Figure 1, Figure 2 with shown in Fig. 6, compressor 100 according to embodiments of the present invention, including：Housing 1, compression mechanism 3,
Getter assembly 4, gas supply assembly 5 and injection valve 6.
Reference picture 2, compression mechanism 3 is located in housing 1, and compression mechanism 3 is compressed including the first order compression assembly 31, second level
Group 32 and clutch shaft bearing component 33, second level compression group 32 and clutch shaft bearing component 33 are located at the axial direction of first order compression assembly 31
Both sides, for example in the example of fig. 1, second level compression group 32 is located at the top of first order compression assembly 31, clutch shaft bearing component
33 lower sections for being located at first order compression assembly 31.
Reference picture 3, clutch shaft bearing component 33 has intermediate cavity C1, and first order compression assembly 31 has the first compression chamber C2,
There is second level compression assembly 32 second compression chamber C3, intermediate cavity C1 to be compressed with the exhaust outlet of the first compression chamber C2 and second respectively
The air entry connection of chamber C3, the exhaust outlet of the second compression chamber C3 is communicated to the inside of housing 1, that is to say, that the first compression chamber C2
Interior refrigerant can be discharged in intermediate cavity C1, and the refrigerant in intermediate cavity C1 can be discharged in the second compression chamber C3, the second pressure
Refrigerant in the C3 of contracting chamber can be discharged to inside housing 1.
Reference picture 2, getter assembly 4 is used to supply first pressure refrigerant to the first compression chamber C2.For example, getter assembly 4 can
So that including reservoir 41, the first compression chamber C2 can suck first pressure refrigerant (such as low pressure refrigerant) from reservoir 41, from
And the first pressure refrigerant for sucking can be compressed during the work of first order compression assembly 31.Referring to Figures 1 and 2, supply group
Part 5 is used to supply second pressure refrigerant (such as middle pressure refrigerant) or the 3rd pressure refrigerant (such as high pressure refrigerant) to intermediate cavity C1.
Wherein, less than the pressure of second pressure refrigerant, the pressure of second pressure refrigerant is less than the 3rd pressure for the pressure of first pressure refrigerant
The pressure of refrigerant.
For example in a specific example of the invention, gas supply assembly 5 can include triple valve 51, and triple valve 51 has two
Individual input and an output end, wherein, an input can be with the middle pressure breather pipe in the place refrigeration system of compressor 100
To obtain second pressure refrigerant (such as middle pressure refrigerant), another input can be by high pressure breather pipe 53 and housing 1 for 54 connections
Inside connection to obtain the 3rd pressure refrigerant (such as high pressure refrigerant), output end can be by air supply pipe 52 and clutch shaft bearing component
Intermediate cavity C1 connections on 33.Thus, it is possible to pass through to manipulate the control of triple valve 51 be to intermediate cavity C1 be passed through second pressure refrigerant,
Or it is passed through the 3rd pressure refrigerant to intermediate cavity C1.
Specifically, second level compression assembly 32 is configured to when second pressure refrigerant is supplied to intermediate cavity C1, second level pressure
Contracting component 32 can work, i.e., second level compression assembly 32 have in harness ability (for example when hereinafter described bent axle 36 rotate when,
Second level compression assembly 32 can be compressed work)；When three pressure refrigerants is supplied to intermediate cavity C1, second level compression group
Part 32 does not work, i.e. ability of the second level compression assembly 32 without work is (even if bent axle 36 that for example ought be hereinafter described is rotated
When, second level compression assembly 32 can not be compressed work).Thus, it is possible to pass through to control gas supply assembly 5 to be supplied to intermediate cavity C1
The refrigerant type for entering, control compressor 100 switches between single stage compress and Two-stage Compression, and specific switch instances are as follows.
Under cooling condition, compressor 100 carries out single stage compress.Specifically, gas supply assembly 5 controls to be fed to intermediate cavity C1
3rd pressure refrigerant (such as high pressure refrigerant), now, second level compression assembly 32 cannot be compressed work, when the first compression chamber
From after the suction first pressure refrigerant of getter assembly 4, the refrigerant of 31 pairs of suctions of first order compression assembly is compressed C2, after compression
Refrigerant is fed in the second compression chamber C3 by intermediate cavity C1, because second level compression assembly 32 cannot be compressed work, because
This is vented directly to inside housing 1 into the refrigerant of the second compression chamber C3, so as to realize single stage compress.
Under worst cold case, compressor 100 carries out Two-stage Compression.Specifically, gas supply assembly 5 controls to be fed to intermediate cavity C1
Second pressure refrigerant (such as middle pressure refrigerant), now, second level compression assembly 32 can be compressed work, when the first compression chamber
From after the suction first pressure refrigerant of getter assembly 4, the refrigerant of 31 pairs of suctions of first order compression assembly is compressed C2, after compression
Refrigerant is fed in the second compression chamber C3 by intermediate cavity C1, because second level compression assembly 32 can be compressed work, because
This enters the refrigerant of the second compression chamber C3 by second compression (i.e. the second-compressed) again of second level compression assembly 32, afterwards again from the second pressure
Contracting chamber C3 is discharged to inside housing 1, so as to realize Two-stage Compression.Thus, compressor 100 can realize the multistage operation of varying capacity.
Further, compressor 100 also includes injection valve 6, and injection valve 6 is used to feed second pressure to the first compression chamber C2
Refrigerant (such as middle pressure refrigerant).For example in the example of Fig. 2 and Fig. 6, injection valve 6 can be connected by playpipe 55 with flash vessel,
Flash vessel can feed second pressure refrigerant (such as middle pressure refrigerant) by playpipe 55 to injection valve 6.Specifically, first
During the level compression refrigerant of compression assembly 31, that is to say, that refrigerant, can be by injection valve 6 during one stage of compression
Second pressure refrigerant is sprayed to the first compression chamber C2, so as to realize air injection enthalpy-increasing, the work efficiency and capacity of one stage of compression is improved.
Compressor 100 according to embodiments of the present invention, the refrigerant class fed to intermediate cavity C1 is adjusted by gas supply assembly 5
Type, while feeding second pressure refrigerant to intermediate cavity C1 by injection valve 6, can cause that compressor 100 realizes that varying capacity is multistage
Jet is run, and so as to improve adaptability of the compressor 100 under various environment temperatures, especially improves compressor 100
Heating capacity under cryogenic and efficiency, while improving the performance under low load conditions of compressor 100.
More specifically, compressor 100 according to embodiments of the present invention, can with the change real-time regulation of external condition,
When load is smaller, compressor 100 can select single-stage to run, and when load is larger, compressor 100 can select twin-stage to run,
Adapt to external temperature wide variation, also, compressor 100 is when single-stage run, increase to first order compression assembly 31 the
One cylinder 311 carries out direct jet, so as to improve the efficiency and performance of compressor 100.
Referring to Fig. 2-Fig. 7, a kind of composition of compression mechanism 3 according to embodiments of the present invention is described.
In the present embodiment, compressor 100 can for rotary compressor (certainly, the invention is not restricted to this, compressor
100 can also be other kinds of compressor), now, compression mechanism 3 can include：Clutch shaft bearing component 33, second bearing group
Part 34, the first cylinder assembly 31, the second cylinder assembly 32 and baffle assembly 35, wherein, the first cylinder assembly 31 can include
First cylinder 311, the first slide plate 312 and first piston 314, the second cylinder assembly 32 can include the second cylinder 321, second
Slide plate 322 and second piston 323,.
Wherein, the first cylinder 311 and the second cylinder 321 are connected to the axial two ends of baffle assembly 35, clutch shaft bearing component
33 one end away from baffle assembly 35 for being connected to the first cylinder 311, second bearing component 34 is connected to the remote of the second cylinder 321
From one end of baffle assembly 35.
The first compression chamber C2 is limited between clutch shaft bearing component 33 and the cylinder 311 of baffle assembly 35 and first, first lives
Plug 314 is set on the first eccentric part 361 of bent axle 36 and rollably coordinates in the first compression chamber C2, second bearing component
The second compression chamber C3 is limited between 34 and the cylinder 321 of baffle assembly 35 and second, second piston 323 is set in the of bent axle 36
Coordinate on two eccentric parts 362 and rollably in the second compression chamber C3, the first vane slot is formed with the first cylinder 311, the
One slide plate 312 is slidably fit into the first vane slot, and the second vane slot, the second slide plate 322 are formed with the second cylinder 321
It is slidably fit into the second vane slot.
Referring to Fig. 2 and Fig. 3, first order compression assembly 31 in the above embodiment of the present invention from air-breathing group is described
Part 4 obtains a kind of technical scheme of first pressure refrigerant.
Air entry 3111 is formed with first cylinder 311, one end of air entry 3111 is through the periphery of the first cylinder 311
Face, the other end are communicated to the first compression chamber C2, and now, getter assembly 4 can include reservoir 41 and air intake duct 42, air intake duct 42
One end be communicated to inside reservoir 41, one end of the other end of air intake duct 42 is through stretching into housing 1 and coordinate in air entry
In 3111, so that during bent axle 36 drives first piston 314 to be rotated in the first compression chamber C2, when the pressure of air entry 3111
When power is less than the pressure inside reservoir 41, the first pressure refrigerant in reservoir 41 can flow to first by getter assembly 4
Compression chamber C2 (can for example flow) along the Z2 directions shown in Fig. 3.
Referring to Fig. 2 and Fig. 3, the bearing assembly described in the above embodiment of the present invention is obtained from gas supply assembly 5
A kind of technical scheme of second pressure refrigerant or the 3rd pressure refrigerant.
Clutch shaft bearing component 33 can include clutch shaft bearing 331 and cover plate 332, and clutch shaft bearing 331 is located at first order compression
Between component 31 and cover plate 332, intermediate cavity C1 is limited between clutch shaft bearing 331 and cover plate 332.Thus, in the middle of convenient processing
Chamber C1.For example in the figure 2 example, clutch shaft bearing 331 is connected to the bottom of the first cylinder 311, the lower surface of clutch shaft bearing 331
On be formed with upwardly recessed groove, the bottom that cover plate 332 is located at clutch shaft bearing 331 limits intermediate cavity jointly with groove
C1。
Reference picture 2, could be formed with air supply channel S2 on clutch shaft bearing 331, first axle is run through in one end of air supply channel S2
Hold 331 outer peripheral face, the other end and be communicated to intermediate cavity C1, now, gas supply assembly 5 can include triple valve 51 and air supply pipe 52,
The output end of triple valve 51 is connected to one end of air supply pipe 52, and the other end of air supply pipe 52 stretches into housing 1 and coordinates logical in supply
In road S2, thus gas supply assembly 5 can feed second pressure refrigerant or the 3rd pressure refrigerant to intermediate cavity C1 (for example can be along figure
Z1 directions supply shown in 3).
Referring to Fig. 3 and Fig. 6, the first order compression assembly 31 in the above embodiment of the present invention is described by centre
A kind of technical scheme that chamber C1 is vented to second level compression assembly 32.
The first row gas port connected with the first compression chamber C2 is formed with first cylinder 311, is formed with clutch shaft bearing 331
The first exhaust passage S1 connected with first row gas port and intermediate cavity C1, exhaust passage is provided with first row air valve 3311, when
When the pressure of one exhaust ports is more than the pressure of intermediate cavity C1, first row air valve 3311 is opened in the presence of pressure difference, and first
Compression chamber C2 (can for example be vented) to intermediate cavity C1 exhausts along the Z3 directions shown in Fig. 3.
Communicating passage, the two of communicating passage are formed with clutch shaft bearing 331, the first cylinder 311, dividing plate, the second cylinder 321
End is respectively communicated to intermediate cavity C1 and the second compression chamber C3, thus gas supply assembly 5 feed intermediate cavity C1 second pressure refrigerant or
The refrigerant that 3rd pressure refrigerant enters intermediate cavity C1 with the first compression chamber C2 can feed second and press after mixing by communicating passage
Contracting chamber C3 (can for example be vented) along the Z4 directions shown in Fig. 3.
Referring to Fig. 2, Fig. 3 and Fig. 6, the second level compression assembly 32 in the above embodiment of the present invention is described to shell
A kind of technical scheme of the exhaust gas inside of body 1.
Second bearing component 34 can include second bearing 341 and muffler 342, and second bearing 341 is located at the second cylinder
321 top, muffler 342 be set on the neck of second bearing 341 and with the upper surface of the flange portion of second bearing 341 it
Between limit silencing cavity C4 jointly, the second exhaust port connected with the second compression chamber C3, the second axle are formed with the second cylinder 321
The second exhaust passage S3 for being formed with 341 and being connected with second exhaust port and silencing cavity C4 is held, is provided with second exhaust passage S3
Second row air valve 3411, is formed with exhaust connect with silencing cavity C4 and the inside of housing 1 and perforates 3421 on muffler 342, when the
When the pressure of two exhaust ports is more than the pressure of silencing cavity C4, second row air valve 3411 is opened under differential pressure, the second compression chamber
C3 can be vented to silencing cavity C4, and the gas in silencing cavity C4 (can for example may be used by being vented the inside of the inflow of perforation 3421 housing 1
It is vented with along the Z5 directions shown in Fig. 3).Wherein, silencing cavity C4 is the 3rd pressure refrigerant to the refrigerant discharged inside housing 1.
Referring to Fig. 7, of the compression refrigerant of first order compression assembly 31 in the above embodiment of the present invention is described
Plant technical scheme.
First order compression assembly 31 can further include spring 313, and spring 313 is compressiblly located at the first slide plate
312 rear side, the front end of spring 313 is connected with the rear end of the first slide plate 312, the rear end of spring 313 and the phase of the first cylinder 311
Even, spring 313 often promotes the first slide plate 312 to be moved towards the direction at the first compression chamber C2 centers, so that the elder generation of the first slide plate 312
All the time stop with the periphery wall of first piston 314 to so that the first slide plate 312 and first piston 314 are by the first compression chamber C2 points at end
Be divided into the first suction muffler and first row air cavity, wherein, the first suction muffler is connected with the air entry 3111 of the first cylinder 3111,
One discharge chamber is connected with the first row gas port of the first cylinder 3111.
When first piston 314 is rolled with the rotation of bent axle 36 along the perisporium of the first compression chamber C2, the first slide plate 312
Reciprocatingly slided in the first vane slot in the presence of first piston 314 and spring 313, the first suction muffler and first row air cavity
Volume size checker, the first suction muffler can suck first pressure refrigerant, first by air entry 3111 from getter assembly 4
Discharge chamber can be compressed and be discharged by first row gas port to the refrigerant for sucking, and so repeatedly, first order compression assembly 31 is realized
One stage of compression effect to refrigerant.
Referring to Fig. 7, of the compression refrigerant of second level compression assembly 32 in the above embodiment of the present invention is described
Plant technical scheme.
Second slide plate 322 is slidably disposed in the second vane slot, wherein, the tip of the second vane slot and the second compression chamber
C3 is connected, and the rear end of the second vane slot connects with the inside of housing 1, so that the pressure of the rear end of the second slide plate 322 is inside housing 1
Pressure, when the tip of the second slide plate 322 pressure less than slide plate rear end pressure when, the pressure inside housing 1 can often promote the
Two slide plates 322 are moved towards the direction at the second compression chamber C3 centers, so as to realize the loading of the second slide plate 322.For example work as supply
When component 5 is passed through second pressure refrigerant to intermediate cavity C1, when what the inside of housing 1 was filled is three pressure refrigerants, the second slide plate 322
Tip and rear end between produce pressure difference, the loading of the second slide plate 322 can be realized.
When the second slide plate 322 is loaded, can make the tip of the second slide plate 322 all the time with the periphery wall of second piston 323
Only support, so that be separated into the second compression chamber C3 and the second suction muffler and second row by the second slide plate 322 and second piston 323
Air cavity, wherein, the second suction muffler is connected with the air entry of the second cylinder 321, the second row of second row air cavity and the second cylinder 321
Gas port is connected.When second piston 323 is rolled with the rotation of bent axle 36 along the perisporium of the second compression chamber C3, the second slide plate
322 reciprocatingly slide in the presence of second piston 323 and spring 313 in the second vane slot, the second suction muffler and second exhaust
The volume size checker in chamber, so that the second suction muffler can carry out two-stage compression to the refrigerant for entering the second compression chamber C3.
Similarly understand, when the pressure of the tip of the second slide plate 322 is equal to the pressure of the rear end of the second slide plate 322, inside housing 1
Pressure cannot promote the second slide plate 322 towards the second compression chamber C3 centers direction move, so as to realize the second slide plate 322
Unloading.For example when gas supply assembly 5 is passed through three pressure refrigerants to intermediate cavity C1, the filling of the inside of housing 1 is also the 3rd pressure
During refrigerant, the tip of the second slide plate 322 and rear end can realize the unloading of the second slide plate 322 without pressure difference.In addition, when the second slide plate
When the pressure of 322 tips is more than the pressure of the rear end of the second slide plate 322, the second slide plate 322 is equally unloaded.
When the second slide plate 322 is unloaded, the tip of the second slide plate 322 cannot with the periphery wall of second piston 323 stop to, from
And the second slide plate 322 and second piston 323 cannot by the second compression chamber C3 be separated into the second suction muffler and second row air cavity,
Cannot just realize acting on refrigerant two-stage compression.That is, when the second slide plate 322 is unloaded, second level compression assembly 32 is not
Work.
Preferably, reference picture 7, baffle assembly 35 includes second partition 352, and second partition 352 is located at the second cylinder 321
Away from the side of second bearing 341, for example, second partition 352 can be located between the first cylinder 311 and the second cylinder 321, the
At least one of two bearings 341 and second partition 352 are provided with the magnetic element 324 for adsorbing second slide plate 322
(such as magnet), that is to say, that the magnetic element for adsorbing second slide plate 322 can be provided with second partition 352
324, the magnetic element 324 for adsorbing second slide plate 322 can also be provided with second bearing 341.Thus, when second slides
When piece 322 is loaded, the followability of the second slide plate 322 is stronger, and second level compression assembly 32 can realize more preferable compression effectiveness,
In other words, by setting magnetic element 324, the second slide plate 322 can be made more stably to be maintained in the second vane slot, not because of gas
Pressure fluctuation produces motion, it is to avoid the second slide plate 322 produces collision with 323 or second cylinder of second piston 321, it is to avoid part is damaged
It is bad, improve the reliability of compressor 100.
To sum up, the second slide plate 322 can be controlled using air pressure, when the single-stage of compressor 100 is run, is passed through in intermediate cavity C1
3rd pressure refrigerant, it is equal with the air pressure inside of housing 1, so as to the release of the second slide plate 322, because the second slide plate 322 does not pass through
Spring driving, the second slide plate 322 now is failure to actuate, and so as to reduce the abrasion of compressor 100, improves compressor 100
Efficiency, and because now the second slide plate 322 does not compress second piston 323, so as to can also reduce the tip of the second slide plate 322 and second
Frictional dissipation between piston 323.When the twin-stage of compressor 100 runs, second pressure refrigerant is passed through in intermediate cavity C1, less than shell
The air pressure inside of body 1, now, the two ends of the second slide plate 322 have compared with small pressure difference, so that the second slide plate 322 can be in the effect of pressure difference
Lower slider, can also now reduce the abrasion of compressor 100, protect the second slide plate 322, reduce the abrasion of the second slide plate 322.
Thus, during compressor 100 works, the gas source of intermediate cavity C1 is switched by triple valve 51, so that
Switching compressor 100 is single stage compress or Two-stage Compression, and specifically, under cooling condition, triple valve 51 controls intermediate cavity C1
Connected with high pressure breather pipe 53, the gas for entering into intermediate cavity C1 and the second cylinder 321 is the 3rd pressure refrigerant, therefore, the
The Suck and exhaust pressure of two cylinders 321 is equal, and the second cylinder 321 is unloaded, and the first cylinder 311 sucks the first pressure from reservoir 41
Power refrigerant, carries out single stage compress, meanwhile, the second pressure refrigerant from flash vessel is injected directly into in the first cylinder 311, to
One cylinder 311 carries out air injection enthalpy-increasing, improves the efficiency of single stage compress.
Under worst cold case, triple valve 51 controls intermediate cavity C1 to be connected with middle pressure breather pipe 54, and the first cylinder 311 absorbs and
The first pressure gas of flash-pot outlet, intermediate cavity C1 second pressure gases of the suction from flash vessel, the second cylinder 321 adds
Carry, now, the gas of intermediate cavity C1 is the gas after being compressed through the first cylinder 311 and the second pressure refrigerant from flash vessel
Mixed gas, after the suction second pressure gas of the second cylinder 321, carry out the second second compression, gas compression into the 3rd pressure gas
It is discharged to after body inside housing 1, so as to realize two-stage compression.
Referring to Fig. 3-Fig. 7, the first order compression assembly 31 in the above embodiment of the present invention is described by injection
Several technical schemes of the air injection enthalpy-increasing of valve 6.
Specifically, the jet S5 connected with the first compression chamber C2 is formed with compression mechanism 3, injection valve 6 is configured to
Jet S5, the pressure when second pressure refrigerant are opened when the pressure of second pressure refrigerant is more than the pressure in the first compression chamber C2
Power closes jet S5 when being less than the pressure in the first compression chamber C2.Thus, it is possible to automatically control injection valve 6 by pressure differential
Open and close, such that it is able to be reliably achieved injection enthalpy-increasing effect.
Embodiment one,
Reference picture 4 and Fig. 5, jet S5 are formed on the first cylinder 311, be formed further with the first cylinder 311 with
The injection channel S4 of jet S5 connections, injection valve 6 is the valve member being arranged on injection channel S4.Reference picture 3, injection is logical
Road S4 can be along first cylinder 311 that extends radially through of the first cylinder 311, and the first cylinder 311 is run through in the outer end of injection channel S4
Outer peripheral face, the inner of injection channel S4 is through to the first compression chamber C2, and valve member can include injection valve seat and be arranged on
Lift stopper 61 and check valve sheet 62 on injection valve seat, wherein, it is formed with injection valve seat and does not block injection channel S4's
Perforation, lift stopper 61 can be fixed on the side of the neighbouring first compression chamber C2 for spraying valve seat by screw 63 and not blocked
Injection channel S4, check valve sheet 62 is fixed between injection valve seat and lift stopper 61 by screw 63, and check valve sheet 62 is
Elastic component and often be adjacent to injection valve seat with close perforation, close injection channel S4, when gas through perforations promotion check valve sheet 62
When, check valve sheet 62 can be promoted towards the direction motion of lift stopper 61 to discharge perforation, open injection channel S4.
Specifically, when the pressure of second pressure refrigerant is more than the pressure in the first compression chamber C2, second pressure refrigerant
Can promote check valve sheet 62 towards lift stopper 61 direction move so that injection channel S4 open so that second pressure is cold
Matchmaker can be flowed into the first compression chamber C2, when the pressure of second pressure refrigerant is less than the pressure in the first compression chamber C2, unidirectionally
Direction of the valve block 62 towards injection valve seat in the presence of natural resiliency power is moved to close injection channel S4, so that second pressure
Refrigerant will not be flowed in the first compression chamber C2, and can prevent the refrigerant in the first compression chamber C2 from being flowed out by valve member simultaneously
(preventing from flowing backwards).
Thus, the injection increasing enthalpy mode of the present embodiment is easy to implement, and realizes that reliability is high.
Embodiment two,
Jet S5 is formed on baffle assembly 35 and/or clutch shaft bearing component 33, and jet S5 is configured to be lived first
Plug 314 can be opened and closed during rotating by first piston 314, and injection valve 6 is first piston 314.That is, first
Piston 314 can be opened during rolling or close jet S5, realize the penetrating or blocking of second pressure refrigerant.
For example in the example of fig. 6, jet S5 can be formed on baffle assembly 35 (and/or clutch shaft bearing component 33)
And connected with the first compression on the first cylinder 311, it is formed further with baffle assembly 35 (and/or clutch shaft bearing component 33)
One end of injection channel S4, injection channel S4 connect with jet S5, the other end insertion baffle assembly 35 of injection channel S4
The outer peripheral face of (and/or clutch shaft bearing component 33) sprays for feeding second pressure refrigerant when the second pressure refrigerant moment feeds
Penetrate passage S4 and when first piston 314 opens jet S5, second pressure refrigerant can be sprayed into the first compression chamber C2,
Injection channel S4 is fed when the second pressure refrigerant moment and when first piston 314 closes jet S5, second pressure refrigerant
Cannot spray into the first compression chamber C2.
So, with first piston 314 for injection valve 6, when first piston 314 goes to certain angle, jet S5 and the
One compression chamber C2 is connected, and when first piston 314 goes to other angles, jet S5 is covered by first piston 314, thus,
The injection increasing enthalpy mode of the present embodiment is easy to implement, and realizes that reliability is high.
Embodiment three,
Jet S5 is formed with reference picture 6, baffle assembly 35 and/or clutch shaft bearing component 33 and is connected with jet S5
Injection channel S4, that is to say, that jet S5 and injection channel S4 can be both formed on baffle assembly 35, jet S5 and
Injection channel S4 can also be both formed on clutch shaft bearing component 33, jet S5 and injection channel S4 can also be formed on every
It is formed on board component 35 and simultaneously on clutch shaft bearing component 33, injection valve 6 includes the valve being arranged on injection channel S4
Component, wherein valve member are identical with the valve member in above-described embodiment one, and I will not elaborate.
Example one, jet S5 is made only in when on clutch shaft bearing component 33, and jet S5 and injection channel S4 can
It is formed on clutch shaft bearing 331, valve member is arranged in the injection channel S4 on clutch shaft bearing 331.
Example two, jet S5 is made only in when on clutch shaft bearing component 33, and clutch shaft bearing component 33 can include being located at
Division board between the cylinder 311 of clutch shaft bearing 331 and first, jet S5 and injection channel S4 can be both formed in division board
On, valve member is arranged in the injection channel S4 on division board.Or jet S5 is formed on division board, injection channel S4
It is formed on clutch shaft bearing 331, valve member is arranged in the injection channel S4 on clutch shaft bearing 331.
Example three, jet S5 is made only in when on baffle assembly 35, when baffle assembly 35 only includes being located at the first cylinder
311 and during second the first dividing plate between cylinder 321, jet S5 and injection channel S4 can be formed on the first dividing plate,
Valve member is arranged in the injection channel S4 on the first dividing plate.
Example four, jet S5 is made only in when on baffle assembly 35, when baffle assembly 35 includes being located at the first cylinder 311
First dividing plate 351 at top and when being located at the second partition 352 at the top of the first dividing plate 351, jet S5 can be formed first every
Connected on plate 351 and with the first compression chamber C2, injection channel S4 can be formed on second partition 352, and valve member is arranged on
In injection channel S4 on second partition 352.
Thus, the injection increasing enthalpy mode of the present embodiment is easy to implement, and realizes that reliability is higher.
Example IV,
The present embodiment is roughly the same with the technical scheme of above-described embodiment three, and difference is that the present embodiment is being implemented
Further meet on the basis of example three：Jet S5 is further configured to can be by first during first piston 314 is rotated
Piston 314 is opened and closed, and injection valve 6 further includes first piston 314.That is, jet S5 is except by valve group
Outside part control open and-shut mode, jet S5 is also controlled closed mode by first piston 314 simultaneously, remaining so as to further reduce
Gap volume and reflux problem, improve the overall efficiency of compressor 100.
In addition, other of compressor 100 according to embodiments of the present invention constitute such as grade of motor 2 and operation for ability
All it is known for the those of ordinary skill of domain, is not detailed herein.For example, compressor according to embodiments of the present invention
100 motor 2 can include stator 21 and rotor 22, rotor 22 can with the hot jacket fixation of bent axle 36 with drive bent axle 36 rotate work
Make.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " is meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect, can also be communication；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be with
Be two element internals connection or two interaction relationships of element.For the ordinary skill in the art, may be used
To understand above-mentioned term concrete meaning in the present invention as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
Can these embodiments be carried out with various changes, modification, replacement and modification in the case of departing from principle of the invention and objective, this
The scope of invention is limited by claim and its equivalent.
Claims (9)
1. a kind of compressor, it is characterised in that including：
Housing；
Compression mechanism, the compression mechanism is located in the housing, and the compression mechanism includes first order compression assembly and sets
In the second level compression assembly and clutch shaft bearing component of first order compression assembly axial direction both sides, the clutch shaft bearing component tool
There is intermediate cavity, the first order compression assembly has the first compression chamber, and the second level compression assembly has the second compression chamber, institute
State intermediate cavity to be connected with the exhaust outlet of first compression chamber and the air entry of second compression chamber respectively, second compression
The exhaust outlet in chamber is communicated to the inside of the housing；
Getter assembly, the getter assembly is used to supply first pressure refrigerant to first compression chamber；
Gas supply assembly, the gas supply assembly is used to supply second pressure refrigerant or the 3rd pressure refrigerant to the intermediate cavity, described
The inside of housing connects with the gas supply assembly and provides the 3rd pressure refrigerant with to the gas supply assembly, when to the centre
When chamber supplies the second pressure refrigerant, the second level compression assembly can work, when to intermediate cavity supply the described 3rd
During pressure refrigerant, the second level compression assembly does not work；And
Injection valve, the injection valve is used to feed the second pressure refrigerant to first compression chamber, wherein, first pressure
, less than the pressure of the second pressure refrigerant, the pressure of the second pressure refrigerant is less than the 3rd pressure for the pressure of power refrigerant
The pressure of refrigerant.
2. compressor according to claim 1, it is characterised in that the second level compression assembly includes：
Second cylinder, has second compression chamber and the second vane slot, the elder generation of second vane slot on second cylinder
End connects with second compression chamber, and the rear end of second vane slot connects with the inside of the housing；With
Second slide plate, second slide plate is slidably disposed in second vane slot.
3. compressor according to claim 2, it is characterised in that the second level compression assembly is further included：It is located at
The second bearing component and baffle assembly of the second cylinder axial direction both sides, in the second bearing component and the baffle assembly
At least one be provided with magnetic element for adsorbing second slide plate.
4. compressor according to claim 1, it is characterised in that the compression mechanism further includes to be located at described first
Baffle assembly between level compression assembly and the second level compression assembly, the first order compression assembly includes：First cylinder
And first piston, first compression chamber is formed with first cylinder, the first piston is rollably located at described
In one compression chamber, the jet connected with first compression chamber is formed with the compression mechanism, the injection valve is configured to
Open the jet when the pressure of the second pressure refrigerant is more than pressure in first compression chamber, when described second
The jet is closed during the pressure that the pressure of pressure refrigerant is less than in first compression chamber.
5. compressor according to claim 4, it is characterised in that the jet is formed on first cylinder, institute
The injection channel for being formed further with connecting on the first cylinder with the jet is stated, the injection valve is to be arranged on the injection
Valve member on passage.
6. compressor according to claim 4, it is characterised in that the jet be formed in the baffle assembly and/or
On the clutch shaft bearing component, the jet is configured to can be by the first piston during the first piston is rotated
Open and close, the injection valve is the first piston.
7. compressor according to claim 4, it is characterised in that the baffle assembly and/or the clutch shaft bearing component
On be formed with the jet and the injection channel connected with the jet, the injection valve includes being arranged on the injection logical
Valve member on road.
8. compressor according to claim 7, it is characterised in that the jet is further configured to be lived described first
Plug can be opened and closed during rotating by the first piston, and the injection valve further includes the first piston.
9. the compressor according to any one of claim 1-8, it is characterised in that the clutch shaft bearing component includes first
Bearing and cover plate, the clutch shaft bearing are located between the first order compression assembly and the cover plate, the clutch shaft bearing and institute
State and limit the intermediate cavity between cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510595500.9A CN105134595B (en) | 2015-09-17 | 2015-09-17 | Compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595500.9A CN105134595B (en) | 2015-09-17 | 2015-09-17 | Compressor |
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| Publication Number | Publication Date |
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| CN105134595B true CN105134595B (en) | 2017-06-16 |
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| CN201510595500.9A Active CN105134595B (en) | 2015-09-17 | 2015-09-17 | Compressor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382227A (en) * | 2016-11-18 | 2017-02-08 | 广东美芝制冷设备有限公司 | Multi-stage compression type rotary compressor and refrigerating circulating device provided with same |
| CN107476978B (en) * | 2017-08-28 | 2024-02-13 | 广东美芝制冷设备有限公司 | Rotary compressor and air conditioning system with same |
| CN108626118B (en) * | 2018-05-25 | 2024-04-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and heat exchange system with same |
| CN113187727B (en) * | 2021-05-06 | 2022-12-20 | 珠海格力电器股份有限公司 | Single-stage compression mechanism, rotor compressor and air conditioning device |
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| CN1371453A (en) * | 1999-08-31 | 2002-09-25 | 三洋电机株式会社 | Internal intermediate pressure 2-stage compression type rotary compressor |
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| JP2013104368A (en) * | 2011-11-15 | 2013-05-30 | Panasonic Corp | Rotary compressor |
| CN203756524U (en) * | 2014-03-03 | 2014-08-06 | 广东美芝制冷设备有限公司 | Double-level rotating compressor and refrigerating cycling device with same |
| CN104806522A (en) * | 2015-05-13 | 2015-07-29 | 广东美芝制冷设备有限公司 | Rotating compressor and refrigeration device with same |
| CN105065272A (en) * | 2015-08-24 | 2015-11-18 | 广东美芝制冷设备有限公司 | Rotary compressor |
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| CN1371453A (en) * | 1999-08-31 | 2002-09-25 | 三洋电机株式会社 | Internal intermediate pressure 2-stage compression type rotary compressor |
| CN101793252A (en) * | 2009-01-14 | 2010-08-04 | 东芝开利株式会社 | Multi-cylinder rotary compressor and refrigeration cycle device |
| JP2013104368A (en) * | 2011-11-15 | 2013-05-30 | Panasonic Corp | Rotary compressor |
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| Publication number | Publication date |
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| CN105134595A (en) | 2015-12-09 |
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