CN106286292B - Compression assembly, varying capacity screw compressor and air conditioner - Google Patents
Compression assembly, varying capacity screw compressor and air conditioner Download PDFInfo
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- CN106286292B CN106286292B CN201510278746.3A CN201510278746A CN106286292B CN 106286292 B CN106286292 B CN 106286292B CN 201510278746 A CN201510278746 A CN 201510278746A CN 106286292 B CN106286292 B CN 106286292B
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Abstract
The present invention provides a kind of compression assembly, including orbiter and fixed scroll, orbiter includes Moving plate end plate and the Moving plate scrollwork that is arranged on Moving plate end plate；Fixed scroll includes quiet disk end plate and the quiet disk scrollwork that is arranged on quiet disk end plate, and fixed scroll and orbiter are intermeshed to form compression chamber；By-pass prot and at least one auxiliary leakage grooves being connected to by-pass prot are provided on quiet disk end plate, so that compression chamber is by assisting leakage grooves to be connected to by-pass prot after orbiter rotates by a certain angle.The invention further relates to the air conditioners of a kind of varying capacity screw compressor using above-mentioned compression assembly and application the varying capacity screw compressor.Compression assembly, varying capacity screw compressor and air conditioner of the invention, is conducive to screw compressor and compresses releasing for intracavitary refrigerant under transfiguration state, improves the transfiguration effect of the varying capacity screw compressor.
Description
Technical field
The present invention relates to air conditioner technical fields, more particularly to a kind of compression assembly, varying capacity screw compressor and sky
Adjust device.
Background technique
Screw compressor is widely deployed due to it has many advantages, such as high-efficient, small in size, light weight and runs smoothly
In refrigeration and air-conditioning and art of heat pumps, with the development of technology with the raising of power conservation requirement, there is varying capacity scroll compression
Contracting machine, to obtain better energy-saving effect and bigger cooling capacity range.
General capacity regulation method is usually to release to achieve the effect that varying capacity using refrigerant, in Patent No.
A kind of varying capacity screw compressor is disclosed in 97195211.6 patent, the orbiter and fixed scroll of the compressor use
Asymmetric cable architecture utilizes opening for piston valve control by-pass prot by opening up the shared by-pass prot of two chambers on fixed scroll
It closes, so that compressor realizes the switching of varying capacity Yu two kinds of operating statuses of full capacity.
But in using the orbiter of asymmetric molded line and the structure of fixed scroll, round by-pass prot is located at quiet whirlpool
Region between the inside and outside wall of capstan, diameter need to be less than or equal to the groove width between adjacent scrollwork wall surface, the passive whirlpool in partial region
The scrollwork wall surface of capstan blocks.With suction chamber constantly to scrollwork center it is mobile, the connection area of by-pass prot and suction chamber is not yet
It is disconnected to reduce, releasing for refrigerant in compression chamber will be hindered under transfiguration state, when needing transfiguration particularly with large capacity screw compressor,
Inhibition will be apparent from, and reduce the transfiguration effect of compressor.
Summary of the invention
In view of the status of the prior art, the purpose of the present invention is to provide a kind of compression assemblies, varying capacity screw compressor
And air conditioner, be conducive to screw compressor and compress releasing for intracavitary refrigerant under transfiguration state, improves varying capacity scroll compression
The transfiguration effect of machine.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of compression assembly characterized by comprising
Orbiter, the orbiter include Moving plate end plate and the Moving plate scrollwork that is arranged on the Moving plate end plate；
Fixed scroll, the fixed scroll include quiet disk end plate and the quiet disk scrollwork that is arranged on the quiet disk end plate, institute
It states fixed scroll and the orbiter is intermeshed to form compression chamber；
By-pass prot and at least one auxiliary leakage grooves being connected to the by-pass prot are provided on the quiet disk end plate, so that
After the orbiter rotates by a certain angle, the compression chamber is connected to by the auxiliary leakage grooves with the by-pass prot.
The auxiliary leakage grooves are arc groove in one of the embodiments, and the auxiliary leakage grooves are along the dynamic vortex
The molded line of Moving plate scrollwork when disk and the fixed scroll engage at the by-pass prot extends certain angle.
The auxiliary leakage grooves are along the orbiter and the fixed scroll on the side in one of the embodiments,
The molded line of Moving plate scrollwork when through hole is engaged extends certain angle to unilateral；
Or the auxiliary leakage grooves are centered on the by-pass prot, along the orbiter and the fixed scroll in institute
The molded line for stating Moving plate scrollwork when engaging at by-pass prot respectively extends certain angle to two sides.
In one of the embodiments, when the auxiliary leakage grooves along the orbiter and the fixed scroll described
When the molded line of Moving plate scrollwork when engaging at by-pass prot extends to two sides, the angle for assisting leakage grooves to extend to two sides
It is identical.
The auxiliary leakage grooves are along the orbiter and the fixed scroll on the side in one of the embodiments,
The angle that the molded line of Moving plate scrollwork when through hole is engaged extends is 10 °~40 °.
The groove width of the auxiliary leakage grooves is less than or equal to the scrollwork wall of the Moving plate scrollwork in one of the embodiments,
Thickness.
The Moving plate scrollwork and the quiet disk scrollwork have asymmetric cable architecture in one of the embodiments,.
The length of the quiet disk scrollwork is more than the length half-turn of the Moving plate scrollwork or more in one of the embodiments,.
In one of the embodiments, it is described auxiliary leakage grooves quantity be two, respectively first auxiliary leakage grooves and
Second auxiliary leakage grooves；
The inside scrollwork wall of first auxiliary leakage grooves close to the quiet disk scrollwork is arranged on the quiet disk end plate, institute
The outside scrollwork wall for stating the second auxiliary leakage grooves close to the quiet disk scrollwork is arranged on the quiet disk end plate.
The first auxiliary leakage grooves and the second auxiliary leakage grooves are relative to the side in one of the embodiments,
The center symmetric setting of through-hole.
The present invention also provides a kind of varying capacity screw compressors, including compression assembly described in any of the above embodiments；
Further include transfiguration component, is also provided with the cylinder body being connected to the by-pass prot, the transfiguration on the quiet disk end plate
It is placed in components in the cylinder body；The transfiguration component is suitable for controlling the varying capacity screw compressor in full capacity shape
It is run under state or varying capacity state.
The transfiguration component includes guiding tube, piston valve and is suitable for supporting the piston in one of the embodiments,
The elastomeric element of valve；One end of the guiding tube is protruded into the cylinder body, and the other end of the guiding tube is selectively connected to institute
State the air intake duct or exhaust pipe of varying capacity screw compressor；
The piston valve is placed in the cylinder body, and the piston valve is suitable for according to the elastic force of the elastomeric element and described
The intracorporal gas pressure of cylinder pumps, to control the open or close of the by-pass prot.
The piston valve is in ladder circle cylindricality, including main part and protrusion, the protrusion in one of the embodiments,
Portion can extend into the by-pass prot, and the diameter of the protrusion is less than the diameter of the by-pass prot.
It in one of the embodiments, further include control unit, the air intake duct, the exhaust pipe and the guiding tube connect
It is connected to the control unit, the control unit is suitable for controlling the guiding tube and is selectively connected to the air intake duct or the exhaust
Pipe.
The invention further relates to a kind of air conditioners, including varying capacity screw compressor described in any of the above embodiments.
The beneficial effects of the present invention are:
Compression assembly, varying capacity screw compressor and air conditioner of the invention, by opening up and bypassing on fixed scroll
The auxiliary leakage grooves of hole connection, so that compression chamber is connected by auxiliary leakage grooves and by-pass prot after orbiter rotates by a certain angle
It is logical, when the connection area of by-pass prot and compression chamber reduces, compression chamber with assist leakage grooves still have it is biggish be connected to area,
The refrigerant in compression chamber can be released by auxiliary leakage grooves through by-pass prot at this time, be conducive to screw compressor under transfiguration state
Refrigerant releases in compression chamber, and the transfiguration effect for improving the varying capacity screw compressor mentions especially to the compressor of huge discharge
Ascending effect is more obvious.Moreover, the structure of compression assembly of the invention is simple, the varying capacity scroll compression of the compression assembly is used
Machine can meet the needs of efficient, miniaturization.
Detailed description of the invention
Fig. 1 is the top view of one embodiment of fixed scroll in compression assembly of the invention；
Fig. 2 is the operating status figure of compression assembly of the invention under centainly rotation angle；
Fig. 3 is the operating status figure after the compression assembly in Fig. 2 rotates by a certain angle；
Fig. 4 is the operating status figure after the compression assembly in Fig. 3 rotates by a certain angle；
Fig. 5 is the operating status figure after the compression assembly in Fig. 4 rotates by a certain angle；
Fig. 6 is the operating status figure after the compression assembly in Fig. 5 rotates by a certain angle；
Fig. 7 is that the compression assembly in Fig. 6 rotates the operating status figure after first angle；
Fig. 8 is the cross-sectional view of one embodiment of varying capacity screw compressor of the invention；
Fig. 9 is cross-sectional view of the transfiguration component under full capacity operating status in Fig. 8；
Figure 10 is cross-sectional view of the transfiguration component under varying capacity operating status in Fig. 8.
Specific embodiment
In order to keep technical solution of the present invention clearer, below in conjunction with attached drawing, to compression assembly of the invention, varying capacity
Screw compressor and air conditioner are described in further detail.It should be appreciated that specific embodiment described herein is only to solve
The present invention is released to be not intended to limit the present invention.
Referring to shown in Fig. 1 to Fig. 7, compression assembly 100 of the invention includes orbiter 110 and fixed scroll 120, moves whirlpool
Capstan 110 and fixed scroll 120 are intermeshed the compression chamber for forming multiple crescent.Orbiter 110 include Moving plate end plate and
Moving plate scrollwork 111 on Moving plate end plate is set, and fixed scroll 120 includes quiet disk end plate and the quiet disk being arranged on quiet disk end plate
Scrollwork 121.Wherein, quiet disk scrollwork 121 usually has and the consistent shape of involute curve with Moving plate scrollwork 111.And be vortexed
Central part, the medial surface being especially vortexed often are balanced adjustment using one or more circular arcs, or directly adopt straight line
It is balanced adjustment.
In the present embodiment, the length of the quiet disk scrollwork 121 of fixed scroll 120 is more than the Moving plate scrollwork 111 of orbiter 110
Length half-turn more than (there are the angle of spread be more than π radian between the terminal of i.e. quiet disk scrollwork 121 and the terminal of Moving plate scrollwork 111
Difference), in this way, fixed scroll 120 and orbiter 110 form asymmetric vortex molded line structure.In other embodiments, originally
The compression assembly of invention can be also used for symmetrical scroll molded line structure, and (i.e. quiet disk scrollwork 121 and Moving plate scrollwork 111 are having the same
Enclose number).
By-pass prot 122 and at least one auxiliary leakage grooves being connected to by-pass prot 122 are provided on quiet disk end plate, so that dynamic
After scroll plate 110 rotates by a certain angle, compression chamber is by assisting leakage grooves to be connected to by-pass prot 122.In this way, working as by-pass prot 122
When constantly reducing with the connection area of compression chamber, auxiliary leakage grooves still have with compression chamber it is biggish be connected to area, thus just
Refrigerant releases in compression chamber, improves the transfiguration effect of compressor.
Wherein, the region between the adjacent scrollwork wall of quiet disk scrollwork 121 is arranged in by-pass prot 122.In the present embodiment, bypass
Hole 122 is circular through hole, and the diameter of by-pass prot 122 is less than or equal to the groove width between the adjacent scrollwork wall of quiet disk scrollwork 121.
More preferably, auxiliary leakage grooves are arranged close to the inside scrollwork wall of quiet disk scrollwork and/or the outside scrollwork wall of quiet disk scrollwork, and assist
Quiet disk end plate of the leakage grooves not through fixed scroll 120.In other embodiments, auxiliary leakage grooves can not also be close to quiet disk whirlpool
The inside scrollwork wall of volume and/or the outside scrollwork wall of quiet disk scrollwork are arranged on quiet disk end plate.
As shown in figure 8, the compression assembly 100 in the present embodiment further includes the cross for preventing 110 rotation of orbiter
Slip ring 614, and cross slip-ring 614 is arranged between upper bracket 613 and orbiter 110, preferably European ring.To guarantee cross
The stability of the installation of slip ring 614 offers cross slip-ring slot compatible with cross slip-ring 614, cross on upper bracket 613
Slip ring is embedded in the cross slip-ring slot on upper bracket 613.Wherein, upper bracket 613 is suitable for support compression assembly 100.
By opening up the auxiliary leakage grooves being connected to by-pass prot on fixed scroll, so that orbiter rotates by a certain angle
Afterwards, compression chamber by assist leakage grooves be connected to by-pass prot, when the connection area of by-pass prot and compression chamber reduction when, compression chamber and
Auxiliary leakage grooves still have biggish connection area, and the refrigerant in compression chamber can be by auxiliary leakage grooves through by-pass prot at this time
It releases, is conducive to screw compressor and compresses releasing for intracavitary refrigerant under transfiguration state, improve the varying capacity screw compressor
Transfiguration effect it is more obvious to promote effect especially to the compressor of huge discharge.Moreover, the structure of compression assembly of the invention
Simply, can meet the needs of efficient, miniaturization using the varying capacity screw compressor of the compression assembly.
More preferably, auxiliary leakage grooves are arc groove, and auxiliary leakage grooves are being bypassed along orbiter 110 and fixed scroll 120
The molded line of Moving plate scrollwork 111 when engaging at hole 122 extends certain angle, in this way, being easy to implement the processing of auxiliary leakage grooves
And save space.
As an embodiment, auxiliary leakage grooves are along orbiter 110 and fixed scroll 120 at by-pass prot 122
The molded line of Moving plate scrollwork 111 when engagement respectively extends certain angle to two sides.Preferably, auxiliary leakage grooves extend to two sides
Angle is identical.More preferably, Moving plate when auxiliary leakage grooves engage at by-pass prot 122 along orbiter 110 and fixed scroll 120
The molded line of scrollwork 111 to the angle that two sides extend be 10 °~40 °, to obtain optimal transfiguration effect.And avoid compression
Connection of the machine under full transfiguration operating status, between ipsilateral compression chamber and suction chamber.
As another embodiment, in the case where certain limited spaces, assist leakage grooves along 110 He of orbiter
The molded line of Moving plate scrollwork 111 when fixed scroll 120 engages at by-pass prot 122 extends certain angle to unilateral.More preferably,
The extension angle for assisting leakage grooves is 10 °~40 °, to obtain optimal transfiguration effect, and not will lead to compressor in full transfiguration
Connection under operating status, between ipsilateral compression chamber and suction chamber.Alternatively, in the case where limited space, only close to quiet disk
The inside scrollwork wall of scrollwork opens up an auxiliary leakage grooves close to the outside scrollwork wall of quiet disk scrollwork on quiet disk end plate, to reach
It is acted on to section space-efficient, the embodiment of effect and the auxiliary leakage grooves extended to two sides is essentially identical.
As a further improvement, as shown in figure 4, the groove width b of auxiliary leakage grooves is less than or equal to the whirlpool of Moving plate scrollwork 111
Roll up the thickness t of wall.Enable Moving plate scrollwork 111 fully to cover auxiliary leakage grooves in this way, avoids compressor and normally transport
Turn under state, by assisting leakage grooves to be connected between inboard compression chamber and outside compression chamber, causes the decline of compressor performance.
As shown in Figure 1, assisting the quantity of leakage grooves is two, the respectively first auxiliary 123 He of leakage grooves in the present embodiment
Second auxiliary leakage grooves 124.The inside scrollwork wall of first auxiliary leakage grooves 123 close to quiet disk scrollwork 121 is arranged in quiet disk end plate
On, the outside scrollwork wall of the second auxiliary leakage grooves 124 close to quiet disk scrollwork 121 is arranged on quiet disk end plate, and the first auxiliary is let out
The center symmetric setting of bakie 123 and the second auxiliary leakage grooves 124 relative to by-pass prot 122.
It should be understood that Fig. 2 to Fig. 7 shows the circular flow state of compression assembly, i.e. Fig. 2 is compression group in Fig. 7
Part rotate by a certain angle after operating status figure.The effect of auxiliary leakage grooves of the invention is retouched below in conjunction with Fig. 2~Fig. 7
It states:
When orbiter 110 and fixed scroll 120 are located at running position shown in Fig. 2, quiet 121 end of disk scrollwork it is interior
Side scrollwork wall is engaged with the outside scrollwork wall of 111 end of Moving plate scrollwork, is formed the first compression chamber 5a-1 of outside and is connected with air entry
Logical inside suction chamber 6a-0, outside the first compression chamber 5a-1 are connected to inside suction chamber 6a-0 by the by-pass prot 122 opened.
When orbiter 110 continues on the operation of crankshaft direction of rotation, the refrigerant in the first compression chamber 5a-1 of outside can pass through bypass
Hole 122 is expressed in the suction chamber 6a-0 of inside, to become pressure of inspiration(Pi).But outside the first compression chamber 5a-1 volume constantly subtracts
It is small, to reduce the capacity of compressor.
As orbiter 110 continues to rotate, when running position as shown in Figure 3, outside the first compression chamber 5a-1 and other
The area S2 that through-hole 122 is connected to constantly reduces, and will hinder releasing for refrigerant in this way.But leakage grooves 123 are assisted since there are first,
Outside the first compression chamber 5a-1 is still connected to area S1, and the first auxiliary leakage grooves with biggish with the first auxiliary leakage grooves 123
123 are connected to smooth with by-pass prot 122, and therefore, having little time the refrigerant released in the first compression chamber 5a-1 of outside at this time can be by the
One auxiliary leakage grooves 123, by-pass prot 122 are released.Until when reaching running position shown in Fig. 4, the first auxiliary 123 quilt of leakage grooves
The scrollwork wall surface of Moving plate scrollwork 111 covers all, and outside the first compression chamber 5a-1 is just completely enclosed and started to compress, and makes to compress
Machine volume change reaches design value, improves the transfiguration effect of compressor, and particularly with huge discharge compressor, promoting effect will more
Add obvious.
When the rotation of orbiter 110 is to running position shown in fig. 5, the inside scrollwork wall of 111 end of Moving plate scrollwork with
The outside scrollwork wall of quiet disk scrollwork 121 engages, the outside suction chamber for forming the first compression chamber 6a-1 of inside and being connected to air entry
5a-0, inside the first compression chamber 6a-1 and outside suction chamber 5a-0 are connected to by by-pass prot 122, and maintain pressure of inspiration(Pi).It is dynamic
When scroll plate 110 continues to rotate to running position shown in fig. 6, the connected surface of inside the first compression chamber 6a-1 and by-pass prot 122
Product S4 constantly reduces, but inside the first compression chamber 6a-1 is still connected to area S3 with biggish with the second auxiliary leakage grooves 124, because
Refrigerant in the first compression chamber 6a-1 of this inside still can by the second auxiliary leakage grooves 124, by-pass prot 122 is smooth releases, will not
Occur that refrigerant is hindered to release phenomenon.Until second auxiliary is let out when inside the first compression chamber 6a-1 reaches running position shown in Fig. 7
The scrollwork wall surface of 124 driven disc scrollwork 111 of bakie covers all, and inside the first compression chamber 6a-1 is just completely enclosed and started to press
Contracting, the portion capacity state operation for making compressor to design, improves the transfiguration effect of compressor.
As shown in figure 8, the present invention also provides a kind of varying capacity screw compressor of the above-mentioned compression assembly 100 of application, packet
Include the compression assembly 100 of transfiguration component 200 and any of the above-described embodiment.The cylinder being connected to by-pass prot is also provided on quiet disk end plate
Body 125, transfiguration component 200 are partially disposed in cylinder body 125, and transfiguration component is suitable for control varying capacity screw compressor to be held entirely
It is run under amount state or varying capacity state.Specifically, transfiguration component 200 includes guiding tube 210, piston valve 220, is suitable for support
Elastomeric element 230, seal cover board 240 and the sealing ring 250 of piston valve 220.In the present embodiment, elastomeric element 230 is preferably bullet
Spring.
Wherein, one end of guiding tube 210 is protruded into cylinder body 125, and the other end of guiding tube 210 is selectively connected to varying capacity
The air intake duct 400 or exhaust pipe 500 of screw compressor.Seal cover board 240 is placed in the open end of cylinder body 125, is used for sealed cylinder block
125.In the present embodiment, through-hole compatible with guiding tube 210 is provided on seal cover board 240, one end of guiding tube 210 is run through
It is protruded into after through-hole on seal cover board 240 in closed cylinder body 125.Sealing ring 250 is placed on piston valve 220, for prevent from
The gas that guiding tube 210 enters cylinder body 125 enters in compression chamber.
Piston valve 220 is placed in cylinder body 125, and piston valve 220 is suitable for elastic force and cylinder body 125 according to elastomeric element 230
Interior gas pressure pumps, to control the open or close of by-pass prot 122.In the present embodiment, piston valve 220
In ladder circle cylindricality, including main part 221 and protrusion 222, specifically, elastomeric element 230 is arranged on main part 210.It is convex
Portion 222 can extend into by-pass prot 122 out, and the diameter of protrusion 222 is less than the diameter of by-pass prot 122.
As shown in figure 9, when protrusion 222 enters by-pass prot 122, the end face of protrusion 222 and the patch of Moving plate scrollwork 111
It closes, so that by-pass prot 122 is closed.As shown in Figure 10, when protrusion 222 is far from by-pass prot 122, specifically, work as piston valve
220 are moved to when being bonded with seal cover board 240, and by-pass prot 122 is opened.
It more preferably, further include control unit 300, control unit 300 connects guiding tube 210, the varying capacity of transfiguration component 200 simultaneously
The air intake duct 400 and exhaust pipe 500 of screw compressor, control unit 300 are suitable for control guiding tube 210 and are selectively connected to air-breathing
Pipe 400 or exhaust pipe 500.Specifically, control unit 300 is connected to guiding tube 210 by transfiguration control channel 310, and control unit 300 is logical
It crosses suction pressure channel 320 to be connected to air intake duct 400, control unit 300 is connected to by pressure at expulsion channel 330 with exhaust pipe 500.
Wherein, the gas in suction pressure channel 320 is low-pressure gas, and the gas in pressure at expulsion channel 330 is high pressure gas.This reality
The control unit 300 applied in example can be using four-way valve, solenoid valve or digital control module etc..
The working principle of the varying capacity screw compressor is described in detail with reference to the accompanying drawing:
The transfiguration Principles of Regulation of screw compressor are: by opening up by-pass prot on the quiet disk end plate of fixed scroll 120
122, the first auxiliary leakage grooves 123 and the second auxiliary leakage grooves 124, change the closure terminal of scroll molded line.It is constant in drop out of gear point
In the case where, by shortening scroll molded line length (terminal for shifting to an earlier date scroll molded line), reduce the inspiratory capacity and content of compressor
Product ratio.As shown in figure 8, control unit 300 optionally connects with the air intake duct 400 of varying capacity screw compressor or exhaust pipe 500
It is logical, to control the movement of transfiguration component 200, realize the adjusting of compressor capacity.
As shown in figure 9, when the varying capacity screw compressor full capacity state operation when, control unit 300 make guiding tube 210 with
The exhaust pipe 500 of varying capacity screw compressor is connected to, and the high pressure gas that exhaust pipe 500 is discharged enters cylinder body by guiding tube 210
125 top, the gas force Pd which forms are acted on piston valve 220.At this point, high pressure gas generate it is downward
Gas force Pd is greater than the elastic force F of elastomeric element 230, to push piston valve 220 mobile to 122 side of by-pass prot, so that piston valve
220 protrusion 222 enters in by-pass prot 122, and the end face of the protrusion 222 of piston valve 220 and orbiter 110 is dynamic
Disk scrollwork 111 is bonded.It is closed by-pass prot 122, which is in full capacity operating status.
As shown in Figure 10, when compressor makees the operation of varying capacity state, control unit 300 makes guiding tube 210 and varying capacity whirlpool
The air intake duct 400 for revolving compressor is connected to, and the low-pressure gas in air intake duct 400 enters the top of cylinder body 125 by guiding tube 210,
The gas force Ps that the low-pressure gas is formed is acted on piston valve 220.The downward gas force Ps that low-pressure gas is formed at this time is small
In the elastic force F of elastomeric element 230, pasted so that piston valve 220 be pushed to be moved upward to the seal cover board 240 of transfiguration component 200
It closes, by-pass prot at this time 122 is opened.In this way, compression chamber Pm1, Pm2 are connected to by by-pass prot 122 with suction chamber, to become air-breathing
State reduces the aspirated volume of screw compressor until scroll molded line meshing point just starts to compress after passing through by-pass prot 122,
So that screw compressor is in varying capacity operating status.
The varying capacity screw compressor of the present embodiment further includes driving assembly, and wherein driving assembly includes crankshaft 610 and electricity
Machine, motor include rotor 611 and motor stator 612, and rotor 611 is connect with crankshaft 610, and band dynamic crankshaft 610 is synchronous
Rotation.Orbiter 110 is set on crankshaft 610, i.e. the bearing socket of orbiter 110 is sleeved on crankshaft 610, crankshaft
610 drive orbiter 110 to rotate synchronously.For the balance for guaranteeing motor operation course, it is provided with and is connect with motor stator 612
Main balance weight 619 and the secondary balance weight 621 that is connect with rotor 611.Wherein, main balance weight 619 is set in crankshaft 610
On, and the main balance weight cover 620 for protection is provided on main balance weight 619, it is provided on secondary balance weight 621 for protection
Secondary balance weight cover 622.
Upper bracket 613 is set on crankshaft 610, is suitable for support compression assembly 100.To guarantee upper bracket 613 and crankshaft
The stability of 610 connections, is provided with base bearing 618, base bearing 618 is used to support branch between upper bracket 613 and crankshaft 610
Frame 613.The screw compressor of the present embodiment further includes shell 630, air intake duct 400 and exhaust pipe 500, air intake duct 400 and exhaust
Pipe 500 stretches out shell 630, is connected to external environment.Specifically, air intake duct 400 is arranged on compression assembly 100, with compression
The air entry of component 100 is connected to, and exhaust pipe 500 is arranged in the cavity that upper bracket 613 and motor are formed.
The varying capacity screw compressor of the present embodiment further includes lower bracket 623, supplementary bearing 625 and thrust plate 626.Lower bracket
623 are placed in the lower section of driving assembly, are suitable for support driving assembly, and lower bracket 623 is set on crankshaft 610.Supplementary bearing 625
It is arranged between lower bracket 623 and crankshaft 610, be used to support lower bracket 623 and guarantees the stability of lower bracket 623, and countershaft
It holds and is additionally provided with supplementary bearing cover board 624 on 625.The lower section of lower bracket 623 is arranged in thrust plate 626, and is fastened by thrust plate
Bolt 627 is fixed on lower bracket 623, and thrust plate 626 is used to support lower bracket 623 and supplementary bearing 625, guarantees lower bracket 623
With the cooperation of crankshaft 610, reduce the resistance in 623 operation process of lower bracket.
The varying capacity screw compressor further includes the oil guide piece 628 and fuel sucking pipe 629 for being mounted on 610 lower part of crankshaft, oil suction
Pipe 629 from the oil sump of compressor for drawing the refrigeration oil of high pressure.During screw compressor operation, due to oil guide piece
628 and fuel sucking pipe 629 effect, refrigeration oil is supplied to the back of screw compressor by the central oil passage of crankshaft 610 in oil sump
It presses at chamber.Since the effect of high pressure refrigeration oil is so that the sealing ring 615 of back pressure cavity component acts on, high pressure and low-voltage ring is isolated
Border.
The invention further relates to a kind of air conditioner, the varying capacity screw compressor including any of the above-described embodiment.
Compression assembly, varying capacity screw compressor and air conditioner of the invention, by opening up and bypassing on fixed scroll
The auxiliary leakage grooves of hole connection, so that compression chamber is connected by auxiliary leakage grooves and by-pass prot after orbiter rotates by a certain angle
It is logical, when the connection area of by-pass prot and compression chamber reduces, compression chamber with assist leakage grooves still have it is biggish be connected to area,
The refrigerant in compression chamber can be released by auxiliary leakage grooves through by-pass prot at this time, be conducive to screw compressor under transfiguration state
Refrigerant releases in compression chamber, and the transfiguration effect for improving the varying capacity screw compressor mentions especially to the compressor of huge discharge
Ascending effect is more obvious.Moreover, the structure of compression assembly of the invention is simple, the varying capacity scroll compression of the compression assembly is used
Machine can meet the needs of efficient, miniaturization.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (15)
1. a kind of compression assembly characterized by comprising
Orbiter (110), the orbiter (110) include Moving plate end plate and the Moving plate whirlpool that is arranged on the Moving plate end plate
It rolls up (111)；
Fixed scroll (120), the fixed scroll (120) include quiet disk end plate and the quiet disk whirlpool that is arranged on the quiet disk end plate
It rolls up (121), the fixed scroll (120) and the orbiter (110) intermeshing form compression chamber；
By-pass prot (122) and at least one auxiliary being connected to the by-pass prot (122) leakage are provided on the quiet disk end plate
Slot, the auxiliary leakage grooves are not through the quiet disk end plate, described so that after the orbiter (110) rotates by a certain angle
Compression chamber is connected to by the auxiliary leakage grooves with the by-pass prot (122).
2. compression assembly according to claim 1, which is characterized in that the auxiliary leakage grooves are arc groove, the auxiliary
It is described dynamic when leakage grooves engage at the by-pass prot (122) along the orbiter (110) and the fixed scroll (120)
The molded line of disk scrollwork (111) extends certain angle.
3. compression assembly according to claim 2, which is characterized in that the auxiliary leakage grooves are along the orbiter
(110) molded line of the Moving plate scrollwork (111) when and the fixed scroll (120) engages at the by-pass prot (122) to
Unilateral side extends certain angle；
Or the auxiliary leakage grooves are centered on the by-pass prot, along the orbiter (110) and the fixed scroll
(120) molded line of the Moving plate scrollwork (111) when engaging at the by-pass prot (122) respectively extends certain angle to two sides
Degree.
4. compression assembly according to claim 3, which is characterized in that when the auxiliary leakage grooves are along the orbiter
(110) molded line of the Moving plate scrollwork (111) when and the fixed scroll (120) engages at the by-pass prot (122) to
When two sides extend, the angle that the auxiliary leakage grooves extend to two sides is identical.
5. compression assembly according to claim 2, which is characterized in that the auxiliary leakage grooves are along the orbiter
(110) molded line of the Moving plate scrollwork (111) when and the fixed scroll (120) engages at the by-pass prot (122) prolongs
The angle stretched is 10 °~40 °.
6. compression assembly according to claim 1, which is characterized in that the groove width of the auxiliary leakage grooves is less than or equal to institute
State the thickness of the scrollwork wall of Moving plate scrollwork (111).
7. compression assembly according to claim 1, which is characterized in that the Moving plate scrollwork (111) and the quiet disk scrollwork
(121) there is asymmetric cable architecture.
8. compression assembly according to claim 7, which is characterized in that the length of the quiet disk scrollwork (121) is more than described
It is more than the length half-turn of Moving plate scrollwork (111).
9. compression assembly according to claim 1-8, which is characterized in that the quantity of the auxiliary leakage grooves is two
It is a, the respectively first auxiliary leakage grooves (123) and the second auxiliary leakage grooves (124)；
The inside scrollwork wall of first auxiliary leakage grooves (123) close to the quiet disk scrollwork (121) is arranged at the quiet disk end
On plate, the outside scrollwork wall of the second auxiliary leakage grooves (124) close to the quiet disk scrollwork (121) is arranged at the quiet disk end
On plate.
10. compression assembly according to claim 9, which is characterized in that first auxiliary leakage grooves (123) and described the
Center symmetric setting of two auxiliary leakage grooves (124) relative to the by-pass prot (122).
11. a kind of varying capacity screw compressor, which is characterized in that including the described in any item compression assemblies of claim 1-10
(100)；
Further include transfiguration component (200), is also provided with the cylinder body being connected to the by-pass prot (122) on the quiet disk end plate
(125), the transfiguration component (200) is partially disposed in the cylinder body (125)；The transfiguration component (200) is suitable for control
The varying capacity screw compressor is run under full capacity state or varying capacity state.
12. varying capacity screw compressor according to claim 11, which is characterized in that the transfiguration component (200) includes
Guiding tube (210), piston valve (220) and the elastomeric element (230) for being suitable for supporting the piston valve (220)；The guiding tube
(210) one end is protruded into the cylinder body (125), and the other end of the guiding tube (210) is selectively connected to the varying capacity
The air intake duct (400) or exhaust pipe (500) of screw compressor；
The piston valve (220) is placed in the cylinder body (125), and the piston valve (220) is suitable for according to the elastomeric element
(230) the gas pressure in elastic force and the cylinder body (125) pumps, to control the by-pass prot (122)
Open or close.
13. varying capacity screw compressor according to claim 12, which is characterized in that the piston valve (220) is in ladder
Cylinder, including main part (221) and protrusion (222), the protrusion (222) can extend into the by-pass prot (122),
And the diameter of the protrusion (222) is less than the diameter of the by-pass prot (122).
14. varying capacity screw compressor according to claim 12, which is characterized in that it further include control unit (300), it is described
Air intake duct (400), the exhaust pipe (500) and the guiding tube (210) are connected to the control unit (300), the control
Portion (300) is suitable for controlling the guiding tube (210) and is selectively connected to the air intake duct (400) or the exhaust pipe (500).
15. a kind of air conditioner, which is characterized in that including the described in any item varying capacity screw compressors of claim 11-14.
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| CN201510278746.3A CN106286292B (en) | 2015-05-27 | 2015-05-27 | Compression assembly, varying capacity screw compressor and air conditioner |
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| CN201510278746.3A CN106286292B (en) | 2015-05-27 | 2015-05-27 | Compression assembly, varying capacity screw compressor and air conditioner |
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| CN106286292A CN106286292A (en) | 2017-01-04 |
| CN106286292B true CN106286292B (en) | 2018-12-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513289B (en) * | 2019-09-24 | 2024-07-30 | 苏州英华特涡旋技术股份有限公司 | Variable capacity scroll compressor |
| CN111396309A (en) * | 2020-04-10 | 2020-07-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor with adjustable internal compression ratio, air conditioner and control method |
| CN114412780B (en) * | 2022-02-11 | 2024-08-30 | 珠海格力电器股份有限公司 | Fixed scroll assembly and scroll compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221477A (en) * | 1995-12-19 | 1999-06-30 | 大金工业株式会社 | Scroll type fluid machine |
| CN1272906A (en) * | 1998-06-12 | 2000-11-08 | 大金工业株式会社 | Multi-stage capacity control scroll compressor |
| CN1576601A (en) * | 2003-07-26 | 2005-02-09 | Lg电子株式会社 | Variable capacity scroll compressor |
| CN101498302A (en) * | 2008-01-31 | 2009-08-05 | Lg电子株式会社 | Mode changing apparatus for a scroll compressor |
| CN102052310A (en) * | 2009-10-26 | 2011-05-11 | 日立空调·家用电器株式会社 | Scroll compressor |
| CN102272454A (en) * | 2008-12-03 | 2011-12-07 | 艾默生环境优化技术有限公司 | Scroll compressor having capacity modulation system |
| CN204663877U (en) * | 2015-05-27 | 2015-09-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Compression assembly, varying capacity scroll compressor and air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074481A (en) * | 2001-08-31 | 2003-03-12 | Sanyo Electric Co Ltd | Scroll compressor |
-
2015
- 2015-05-27 CN CN201510278746.3A patent/CN106286292B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221477A (en) * | 1995-12-19 | 1999-06-30 | 大金工业株式会社 | Scroll type fluid machine |
| CN1272906A (en) * | 1998-06-12 | 2000-11-08 | 大金工业株式会社 | Multi-stage capacity control scroll compressor |
| CN1576601A (en) * | 2003-07-26 | 2005-02-09 | Lg电子株式会社 | Variable capacity scroll compressor |
| CN101498302A (en) * | 2008-01-31 | 2009-08-05 | Lg电子株式会社 | Mode changing apparatus for a scroll compressor |
| CN102272454A (en) * | 2008-12-03 | 2011-12-07 | 艾默生环境优化技术有限公司 | Scroll compressor having capacity modulation system |
| CN102052310A (en) * | 2009-10-26 | 2011-05-11 | 日立空调·家用电器株式会社 | Scroll compressor |
| CN204663877U (en) * | 2015-05-27 | 2015-09-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Compression assembly, varying capacity scroll compressor and air conditioner |
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| CN106286292A (en) | 2017-01-04 |
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