CN103835943A - Scroll compressor having a plurality of scroll members - Google Patents
Scroll compressor having a plurality of scroll members Download PDFInfo
- Publication number
- CN103835943A CN103835943A CN201210484179.3A CN201210484179A CN103835943A CN 103835943 A CN103835943 A CN 103835943A CN 201210484179 A CN201210484179 A CN 201210484179A CN 103835943 A CN103835943 A CN 103835943A
- Authority
- CN
- China
- Prior art keywords
- scroll
- bypass passageways
- determining
- compressor
- scroll element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention relates to a scroll compressor (100) comprising: a housing (10); a fixed scroll member (40); an orbiting scroll member (50); an air intake assembly (70), said air intake assembly (70) being in fluid communication with a suction pressure region (S) formed between said non-orbiting scroll member (40) and said orbiting scroll member (50); and a bypass passage (80, 80A, 80B, 80C) configured to extend between and provide selective fluid communication between a discharge pressure zone (D) filled with high pressure fluid and the suction pressure zone (S) within the scroll compressor. The capacity of the scroll compressor of the present invention can be modulated between 0% and 100%.
Description
Technical field
The present invention relates to a kind of scroll compressor.
Background technique
The content of this part only provides the background information relevant to the disclosure, and it may not form prior art.
Scroll compressor generally includes determines scroll element and moving scroll element.Determining scroll element and moving scroll element comprises respectively end plate and is formed on the volution blade on end plate.Determine the volution blade of scroll element and the volution blade of moving scroll element and be bonded with each other to form betwixt a series of compression chambers.When moving scroll element is activated and with respect to determining scroll element translation rotation (, the central axis of moving scroll element is around the central axis rotation of determining scroll element, but moving scroll element itself can not rotate around the central axis of self) time, thereby the volume of these compression chambers diminishes towards the position of radially inner side gradually from the position of radial outside, convection cell compresses.
Conventionally there is definite compression ratio and capacity by determining the compression chamber that scroll element and moving scroll element limit.In the time that compressor carries out work with whole compression chambers, compressor is with capacity operation completely.But, in the practical application of compressor, often need compressor to move to reduce output and save energy consumption with part capacity or the capacity that reduces.
The known a kind of scroll compressor that can realize capacity modulation, it is by axial separation or engage and determine scroll element and moving scroll element and realize the capacity of compressor and modulate.More specifically, in the time determining scroll element and separate in the axial direction with moving scroll element, compress thereby each compression chamber opens wide not convection cell, and in the time determining scroll element and moving scroll element and engage in the axial direction, compress thereby each compressor seals convection cell.By controlling the dutycycle of determining scroll element and moving scroll element axial separation, can realize the capacity modulation of compressor.
But the above-mentioned scroll compressor structure relative complex with capacity modulation function, therefore causes compressor cost to increase and volume increases.
Therefore, need a kind of can with more simple mode and more low cost realize the scroll compressor that capacity is modulated.
Summary of the invention
According to one aspect of the invention, provide a kind of scroll compressor.Described scroll compressor can comprise: housing; Be arranged on the scroll element of determining in described housing, describedly determine scroll element and can comprise and determine vortex end plate, be formed on the described spiral helicine relief opening of determining volution blade and being formed on the described substantial middle place that determines vortex end plate of determining vortex end plate one side; Be arranged on the moving scroll element in described housing, described moving scroll element can comprise moving vortex end plate and be formed on the spiral helicine moving volution blade of described moving vortex end plate one side, described moving volution blade and describedly determine volution blade and be engaged with each other to form betwixt a series of compression chambers; Air intake assembly, described air intake assembly is communicated with the described suction pressure region fluid of determining to form between scroll element and described moving scroll element; And bypass passageways, described bypass passageways can be configured to optionally provide fluid to be communicated with between the exhaust pressure district that is filled with high-pressure liquid in described suction pressure region and described scroll compressor.
Brief description of the drawings
By the description referring to accompanying drawing, it is easier to understand that the feature and advantage of one or several mode of execution of the present invention will become, wherein:
Fig. 1 is the longitudinal section through air intake assembly according to the scroll compressor of first embodiment of the invention;
Fig. 2 is the partial enlarged drawing of the scroll compressor shown in Fig. 1;
Fig. 3 is the longitudinal section amplifying according to the part through bypass passageways of the scroll compressor of first embodiment of the invention;
Fig. 4 is the stereogram of determining scroll element, air intake assembly, bypass passageways and switch valve shown in Fig. 1;
Fig. 5 is the exploded perspective view of each parts shown in Fig. 4;
Fig. 6 is the worm's eye view of determining scroll element shown in Fig. 1;
Fig. 7 shows the change procedure of determining the compression chamber between scroll element and moving scroll element;
Fig. 8 is the stereogram of determining scroll element, air intake assembly, bypass passageways and switch valve according to second embodiment of the invention;
Fig. 9 is the sectional view of parts shown in Fig. 8;
Figure 10 is the plan view of determining scroll element, air intake assembly, bypass passageways and switch valve according to third embodiment of the invention;
Figure 11 is the worm's eye view of determining scroll element according to the modification of embodiment of the present invention;
Figure 12 is the stereogram of determining scroll element, air intake assembly, bypass passageways and switch valve according to the another kind of modification of embodiment of the present invention.
Embodiment
Be only exemplary to the description of various mode of executions and modification thereof below, and be never the restriction to the present invention and application or usage.In each accompanying drawing, adopt identical reference character to represent identical parts, therefore the structure of same parts will no longer be repeated in this description.
To first essential structure and the running principle of scroll compressor be described with reference to Fig. 1 and 2 below.Fig. 1 is the longitudinal section through air intake assembly 70 according to the scroll compressor 100 of first embodiment of the invention; Fig. 2 is the partial enlarged drawing of the scroll compressor shown in Fig. 1.
As shown in Figure 1, scroll compressor (being also referred to as hereinafter compressor) 100 can comprise the housing 10 that substantially forms enclosed space.Housing 10 can comprise general cylindrical shape main body portion 12, be arranged on the top cover 14 of main body portion 12 one end and be arranged on the bottom 16 of main body portion 12 the other ends.Can on housing 10, be provided for introducing the air intake assembly 70 of operating on low voltage fluid (for example refrigeration agent) and for discharging the exhaust joint 18 of pressurized working fluid.In example shown in the figure, air intake assembly 70 and exhaust joint 18 are all arranged on top cover 14 or are arranged to through top cover 14, but it should be appreciated by those skilled in the art that air intake assembly 70 and exhaust joint 18 also can be arranged on main body portion 12.The concrete structure of air intake assembly 70 will be described in more detail below.
In housing 10, be provided with the compressing mechanism forming by determining scroll element 40 and moving scroll element 50.Simultaneously referring to Fig. 2, determine scroll element 40 and can comprise and determine vortex end plate 42, be formed on the spiral helicine relief opening 46 of determining volution blade 44 and being formed on the substantial middle place that determines vortex end plate 42 of determining vortex end plate 42 1 sides.Moving scroll element 50 can comprise moving vortex end plate 52 and be formed on the spiral helicine moving volution blade 54 of moving vortex end plate 52 1 sides.Also be provided with roughly hub cylindraceous portion 56 at the opposite side of moving vortex end plate 52.Move volution blade 54 and determine volution blade 44 and be engaged with each other to form betwixt a series of compression chamber C1, C2, C3, the volume of these compression chambers at moving scroll element 50 with respect to determining scroll element 40 translation rotations (, the central axis of moving scroll element 50 is around the central axis rotation of determining scroll element 40, but moving scroll element 50 itself can be around the central axis rotation of self) process in reduce gradually to realize fluid compression from the radial outside of determining scroll element 40 or moving scroll element 50 towards its radially inner side.
In the example shown in Fig. 1, determine scroll element 40 and can adopt fixing on axial and circumferential with respect to housing 10 in any suitable manner.But, it should be appreciated by those skilled in the art that determining scroll element 40 also can only circumferentially fix and be axially moveable with respect to housing 10.For example, determine scroll element 40 can adopt as known in the art by determine the opposite side of vortex end plate 42 (be formed with determine the side that volution blade 44 is contrary) upper form back pressure cavity or adopt the mode of other elastic pressurizeds to make to determine scroll element 40 can there is in the axial direction certain displacement and think that compressing mechanism provides axial elasticity.One side of moving scroll element 50 is supported by main bearing seat 60.Main bearing seat 60 can be adopted fixing with respect to housing 10 in any suitable manner.
The motor 20 being made up of stator 22 and rotor 24 also can be set in housing 10.Stator 22 can be adopted in any suitable manner and be fixedly installed with respect to housing 10.In rotor 24, be provided with live axle 30 to drive moving scroll element 50 translation rotations.Live axle 30 is supported rotationally by the lower bearing that is arranged on the main bearing 62 in main bearing seat 60 and be arranged in step 90.Step 90 is fixing with respect to housing 10 via for example support 92.In addition, equilibrium block 26 and 28 can be set on live axle 30 or on rotor 24 to keep dynamic balancing.
One end of live axle 30 is provided with eccentric crank pin 36.Eccentric crank pin 36 is engaged in the hub portion 56 of moving scroll element 50 via unloading lining 38, thereby in the time that live axle 30 is driven rotation by motor 20, eccentric crank pin 36 can drive moving scroll element 50 translation rotations.Above-mentioned translation rotation realizes by the cross slip-ring 64 of determining to arrange between scroll element 40 and moving scroll element 50.
One end of being supported by step 90 of live axle 30 can comprise oilhole 32.Preferably, oilhole 32 is concentric with the spin axis of live axle 30, therefore also this oilhole is called to concentric hole 32.Live axle 30 also can comprise and being communicated with concentric hole 32 fluids and eccentric and roughly along the eccentric opening 34 of the end face that extends lengthwise into eccentric crank pin 36 of live axle with respect to concentric hole 32.Alternatively, can form the pore 341 being communicated with eccentric opening 34 fluids with the air release in allowable offset hole 34 in the housing of compressor.One end that is provided with concentric hole 32 at live axle 30 can arrange oil pumping device 94.For example, oil pumping device 94 can be any appropriate device such as rotor pump, wing pump, oil fork.
Adopt above-mentioned structure, in the time of compressor operating, first the lubricant oil that is arranged in housing 10 bottoms will be supplied to the concentric hole 32 of live axle 30 by oil pumping device 94, be then supplied to the end of eccentric crank pin 36 via the eccentric opening 34 being communicated with concentric hole 32 fluids.The lubricant oil of then, discharging from eccentric crank pin 36 can be under Action of Gravity Field or is supplied to various parts in compressor to realize lubrication and cooling by splashing of movable part.
To describe according to the scroll compressor of first embodiment of the invention with further reference to Fig. 3-7 below.Fig. 3 is the longitudinal section that amplify the part through bypass passageways 80 of scroll compressor 100; Fig. 4 is the stereogram of determining scroll element 40, air intake assembly 70, bypass passageways 80 and switch valve 110 shown in Fig. 1; Fig. 5 is the exploded perspective view of each parts shown in Fig. 4; Fig. 6 is the worm's eye view of determining scroll element 40 shown in Fig. 1; Fig. 7 shows the change procedure of determining the compression chamber between scroll element 40 and moving scroll element 50.
In the example shown in Fig. 1-7, supply with working fluid by determining the compressing mechanism that scroll element 40 and moving scroll element 50 form by air intake assembly 70.Air intake assembly 70 can be communicated with the suction pressure region S fluid of determining to form between scroll element 40 and moving scroll element 50.Air intake assembly 70 can comprise suction tude 72 and safety check 74.Safety check 74 can be configured to allow fluid flow and stop fluid to flow along contrary direction towards described suction pressure region S.Suction tude 72 can be connected to hermetically determines scroll element 40.Particularly, one end of suction tude 72 can extend to the outside of compressor through top cover 14, and the other end of suction tude 72 can be engaged in to run through to be determined in suction port 41 that vortex end plate 42 forms.For example O shape of Sealing can be set in suction port 41 and encircle to strengthen the sealing between suction tude 72 and suction port 41.In this example, safety check 74 can be arranged on one end of closing on suction pressure region S of suction tude 72.Safety check 74 can for example comprise piston 741 and provide the spring 742 of bias force for piston 741.Piston 741 can move vertically.In the time that the pressure in suction tude 72 is more than or equal to the pressure in the S of suction pressure region, piston 741 can move downward to allow fluid to flow into suction pressure region S from suction tude 72.In the time that the pressure in suction tude 72 is less than the pressure in the S of suction pressure region, piston 741 can move upward to stop fluid to flow into suction tude 72 from suction pressure region S.Although in this example, suction tude 72 is arranged on determines on vortex end plate 42, those skilled in the art should understand that suction tude 72 also can be arranged on the sidewall of determining scroll element 40.In addition, although in this example, safety check 74 is depicted as a kind of valve assembly that comprises piston 741 and spring 742, those skilled in the art should understand that safety check 74 can be the check valve components of any type as known in the art.In addition, although in this example, safety check 74 is depicted as the end that is arranged on suction tude 72, those skilled in the art should understand that safety check 74 can also be arranged in suction tude 72.
As shown in Figure 7, determining between volution blade 44 and moving volution blade 54, to form compression chamber C1, C2 and the C3 that a series of volumes are reducing to radially inner side gradually from radial outside.Wherein, the compression chamber C1 of outermost radial outside is in pressure of inspiration(Pi), radially the compression chamber C3 of inner side in exhaust pressure.Middle compression chamber C2 between pressure of inspiration(Pi) and exhaust pressure, thereby be also referred to as middle pressure chamber.The compression chamber C1 of outermost radial outside carried out air-breathing operation and after it is closed, carries out the operation of compressing before its closure.Therefore, in the example depicted in fig. 7, the space of the compression chamber C1 of outermost radial outside before its closure can form at least a portion of above-mentioned suction pressure region S.Meanwhile, suction pressure region S can also comprise the space being positioned at all the time outside outermost compression chamber C1 scope.In the position shown in (a) of Fig. 7, outermost compression chamber C1 is in breathing process, and middle compression chamber C2 is in compression process, and inboard compression chamber C3 is in exhaust process.In the position shown in (b) of Fig. 7, along with the translation rotation of moving scroll element 50, outermost compression chamber C1 continue air-breathing and be about to closed, the inboard compression chamber C3 exhaust that is near completion.At (c) of Fig. 7 with the position (d), along with the translation rotation of moving scroll element 50, outermost compression chamber C1 is due to moving volution blade 54 and determine volution blade 44 to engage at radial outside place and completely closed and move towards radially inner side and become intermediate compression chamber, forms gradually another compression chamber C ' in the outside of moving volution blade 54 simultaneously.Thus, from position (a), position (b), position (c) to position, (d) completes first compression circulation.
Be discharged in the inner space of housing 10 by relief opening 46 through the fluid of determining after scroll element 40 and 50 compressions of moving scroll element.In the example shown in Fig. 1-7, be full of the high-pressure liquid after compression owing to being provided with in the housing 10 of motor 20, therefore also such scroll compressor is referred to as to high pressure side scroll compressor.
In order to realize the capacity modulation of compressor, according to being further provided with bypass passageways 80 in the scroll compressor 100 of first embodiment of the invention.Bypass passageways 80 can be configured between the exhaust pressure district D that is filled with high-pressure liquid in scroll compressor 100 and above-mentioned suction pressure region S, extend and between the two, provide optionally fluid to be communicated with.Further, control valve 85 can be set in bypass passageways 80.Control valve 85 can be configured to optionally open or close bypass passageways 80.In the first mode of execution shown in Fig. 1-7, bypass passageways 80 can be configured to extend to via housing 10 outsides from suction pressure region S the pipeline of the exhaust joint 18 being arranged on housing 10 or the pipeline (not shown) being connected with described exhaust joint 18.In Fig. 1-3, a part of bypass passageways 80 illustrates with the pipeline of entity and another part bypass passageways 80 represents with schematic lines.More specifically, the first end of bypass passageways 80 can lead to suction pressure region S, and the second end of bypass passageways 80 can lead to exhaust joint 18 or lead to the pipeline being connected with exhaust joint 18 in the outside of housing 10.In this example, can on the sidewall 45 of determining scroll element 40, form opening 43, bypass passageways 80 can extend to suction pressure region S via this opening 43, as shown in Figure 6.Alternately, bypass passageways 80 can also be communicated with suction pressure region S fluid via being formed on the opening 43A or the 43B that determine in vortex end plate 42, as shown in figure 11. Opening 43A or 43B can be formed on upstream side or the downstream side with respect to moving scroll element translation rotation direction of suction port 41.In other words, bypass passageways 80 can extend through and determines the sidewall 45 of scroll element 40 or determine vortex end plate 42.In this example, control valve 85 can be arranged on the outside of housing 10.Control valve 85 can be solenoid valve.
Briefly describe according to the capacity modulated process of the scroll compressor 100 of present embodiment below.In the time that control valve 85 is closed, bypass passageways 80 is not set up fluid and is communicated with between exhaust pressure district D and suction pressure region S, the working fluid that therefore scroll compressor 100 sucks working fluid and discharges compression from exhaust joint 18 from air intake assembly 70 with above-described process.Now, scroll compressor 100 carries out work with capacity completely.In the time that control valve 85 is opened, bypass passageways 80 is set up fluid and is communicated with between exhaust pressure district D and suction pressure region S.Now, because the pressure in the S of suction pressure region is greater than the pressure in suction tude 72, so safety check 74 blocks suction tude 72, thereby compressing mechanism can not suck working fluid from air intake assembly 70.The compressed mechanism of the fluid in high pressure in the S of suction pressure region further compresses and from relief opening 46, enters in exhaust pressure district D.Owing to not having new working fluid to suck from air intake assembly 70 in this process, and fluid in exhaust pressure district D owing to flowing into suction pressure region S pressure decreased and pressure raises due to the fluid of the more high pressure of discharging from relief opening 46, so generally, the pressure in exhaust pressure district D remains unchanged.In this case, do not have compressed fluid to discharge compressor from exhaust joint 18 yet.Therefore, compression chamber shows zero capacity on the whole.By control valve 85 is carried out to suitable control, for example control the opening time of control valve 85 and the ratio of shut-in time, can realize the modulation of compressor capacity between 0% to 100%.That is to say, control valve 85 can be constructed to be permeable to optionally open and close bypass passageways 80 to be changed between 0% and 100% with the capacity that makes scroll compressor.
But in above-mentioned modulated process, although compressor shows as zero capacity in the process of opening at control valve 85, compressing mechanism is still carrying out compressed action in this process, so the energy consumption of compressor is not lowered, this is less desirable.
In order further to improve the energy consumption efficiency of compressor, in the scroll compressor of first embodiment of the invention, can be determining to be formed with at least one relief hole 77 being communicated with one of them compression chamber C1, C2 or C3 in vortex end plate 42.The switch valve 110 that can optionally open or close relief hole 77 can be set on relief hole 77.Switch valve 110 can be configured in the time that the pressure in the compression chamber being communicated with relief hole 77 is more than or equal to predetermined value, open relief hole 77, and in the time that the pressure in the compression chamber being communicated with relief hole 77 is less than predetermined value, closes relief hole 77.Described predetermined value can be set the setting exhaust pressure that equals scroll compressor for.In the example depicted in fig. 5, switch valve 110 can comprise the valve guard 114 that opens or closes the valve block 112 of relief hole 77 and the maximum displacement of restriction valve block 112.Valve block 112 can be made by having for example metal of flexible material.Valve block 112 and valve guard 114 are fixed on and determine on vortex end plate 42 via screw 116.
In above-mentioned structure, in the situation that control valve 85 is opened, fluid in the S of suction pressure region is in high pressure (setting exhaust pressure), when compressing mechanism compresses and makes its pressure (this fluid, pressure in compression chamber) higher than switch valve 110 open pressure (preferably can be set as equaling to set exhaust pressure) time, pressure in compression chamber is discharged to exhaust pressure district D from relief hole 77, thereby compressing mechanism is without proceeding compressed action, thereby reduce the power consumption of compressor.That is to say, in the situation that control valve 85 is opened, compressing mechanism does work the energy that consumes only for to open the required energy of switch valve 110, instead of fluid compression is completed to the required energy of whole compression cycle.Therefore,, in the time that compressor zero capacity moves, the overall power of compressor has significantly reduced.As mentioned above, by control valve 85 is carried out to suitable control, can make the capacity of compressor change between 0% and 100%.
Therefore, adopt this structure, in having realized compressor capacity adjustment, significantly reduced the power consumption of compressor.On the other hand, in this structure, only need in original compressor constructions, increase the bypass passageways that can optionally be communicated with exhaust pressure district D and suction pressure region S, so according to structure of the present invention is relatively simple and cost is lower.In the present embodiment, bypass passageways is extended in the outside of compressor housing and control valve is arranged on hull outside, so the layout of parts and electric wiring is simpler, and control valve 85 is also without the expensive product of selecting high temperature high voltage resistant, so further reduced the holistic cost of compressor.
Describe according to the structure of the scroll compressor of second embodiment of the invention below with reference to Fig. 8 and 9.Fig. 8 is the stereogram of determining scroll element 40, air intake assembly 70, bypass passageways 80A and switch valve 110 according to second embodiment of the invention, and Fig. 9 is the sectional view of parts shown in Fig. 8.
The difference of the second mode of execution and the first mode of execution is only the structure of bypass passageways and control valve, therefore by the description of omitting miscellaneous part.More specifically, in the second mode of execution, the first end of bypass passageways 80A leads to suction pressure region S, and the second end of bypass passageways 80A leads to exhaust pressure district D in the inner side of housing 10.Now, control valve 85A can be arranged on the inner side of housing 10.For example, bypass passageways 80A can extend through the sidewall 45 of determining scroll element 40, and control valve 85A can be arranged on the sidewall 45 of determining scroll element 40.
Adopt the structure of the second mode of execution, can make the structure of compressor compacter.In addition, because the hole without processing passes bypass passageways on housing is also without the binding site of bypass passageways and housing is sealed, so can reduce the cost of compressor and guarantee the reliability that compressor housing seals.
Describe according to the structure of the scroll compressor of third embodiment of the invention below with reference to Figure 10.Figure 10 is the stereogram of determining scroll element 40, air intake assembly 70, bypass passageways 80B and switch valve 110 according to third embodiment of the invention.
The difference of the 3rd mode of execution and the first mode of execution is only the structure of bypass passageways and control valve, therefore by the description of omitting miscellaneous part.More specifically, in the 3rd mode of execution, bypass passageways 80B can extend through and determines the sidewall 45 of scroll element 40 or determine vortex end plate 42, and control valve 85B can be arranged on and determines in scroll element 40 and can be arranged in suction pressure region S.The 3rd mode of execution can be realized and the similar beneficial effect of the second mode of execution.
Although in the above-described embodiment, end and bypass passageways 80 that safety check 74 is arranged on suction tude 72 are communicated with suction pressure region S fluid through end plate 42 or the sidewall 45 of determining scroll element 40, but those skilled in the art should understand that the present invention is not limited thereto.For example, in the modification shown in Figure 12, safety check 74C can be arranged in suction tude 72, and the first end of bypass passageways 80C can be communicated with suction pressure region S fluid via the part that is positioned at safety check 74C downstream of suction tude 72.In addition, the second end of bypass passageways 80C can lead in the outside of compressor housing 10 exhaust joint 18 being arranged on housing, or leads to exhaust pressure district D in the inner side of housing 10.
Adopt above-mentioned modification, only need suction tude 72 to process or transform, without carrying out any additional processing to determining scroll element, so further reduced the holistic cost of compressor.
Although in the above-described embodiment, safety check 74 forms a kind of mechanical valve that comprises piston 741 and spring 742, but those skilled in the art are to be understood that direct valve 74 and also can adopt the valve member of other types as known in the art, for example electronically controlled valve.In this case, the operation that safety check 74 can be relevant to the operation of control valve 85.For example, in the time that control valve 85 is opened bypass passageways 80, safety check 74 can cut out suction tude 72, and in the time that control valve 85 is closed bypass passageways 80, safety check 74 is opened suction tude 72.
Specifically describe various mode of execution of the present invention and modification above, but it should be appreciated by those skilled in the art that the present invention is not limited to above-mentioned concrete mode of execution and modification but can comprises other various possible combinations and combinations.
For example, according to an aspect of the present invention, provide a kind of scroll compressor, it can comprise: housing; Be arranged on the scroll element of determining in described housing, describedly determine scroll element and comprise and determine vortex end plate, be formed on the described spiral helicine relief opening of determining volution blade and being formed on the described substantial middle place that determines vortex end plate of determining vortex end plate one side; Be arranged on the moving scroll element in described housing, described moving scroll element comprises moving vortex end plate and is formed on the spiral helicine moving volution blade of described moving vortex end plate one side, described moving volution blade and describedly determine volution blade and be engaged with each other to form betwixt a series of compression chambers; Air intake assembly, described air intake assembly is communicated with the described suction pressure region fluid of determining to form between scroll element and described moving scroll element; And bypass passageways, described bypass passageways is configured to optionally provide fluid to be communicated with between the exhaust pressure district that is filled with high-pressure liquid in described suction pressure region and described scroll compressor.
According to a second aspect of the invention, described air intake assembly can comprise suction tude and safety check, and described safety check can be configured to allow fluid to flow towards described suction pressure region and stop fluid to flow along contrary direction.
According to a third aspect of the present invention, in described bypass passageways, can be provided with control valve, described control valve can be configured to optionally open or close described bypass passageways.
According to a fourth aspect of the present invention, the first end of described bypass passageways can lead to described suction pressure region, and the second end of described bypass passageways can lead in the outside of described housing and is arranged on the exhaust joint on described housing or leads to the pipeline being connected with described exhaust joint.
According to a fifth aspect of the present invention, described control valve can be arranged on the outside of described housing.
According to a sixth aspect of the invention, the first end of described bypass passageways is extensible through the described sidewall of determining scroll element or describedly determine vortex end plate.
According to a seventh aspect of the present invention, the first end of described bypass passageways can lead to described suction pressure region, and the second end of described bypass passageways can lead in the inner side of described housing described exhaust pressure district.
According to an eighth aspect of the present invention, described control valve can be arranged on the inner side of described housing.
According to a ninth aspect of the present invention, described bypass passageways is extensible through the described sidewall of determining scroll element, and described control valve can be arranged on the described described sidewall of determining scroll element.
According to a tenth aspect of the present invention, described bypass passageways is extensible through the described sidewall of determining scroll element or describedly determine vortex end plate, and described control valve can be arranged on describedly to be determined in scroll element and is arranged in described suction pressure region.
According to an eleventh aspect of the present invention, described safety check can be arranged in described suction tude, and the first end of described bypass passageways can be communicated with described suction pressure region fluid via the part that is positioned at described check valve downstream of described suction tude.
According to a twelfth aspect of the present invention, the second end of described bypass passageways can lead to the exhaust joint being arranged on described housing in the outside of described housing.
According to the 13 aspect of the present invention, the second end of described bypass passageways can lead in the inner side of described housing described exhaust pressure district.
According to the 14 aspect of the present invention, described control valve can be solenoid valve.
According to the 15 aspect of the present invention, described safety check can be arranged on one end of closing on described suction pressure region of described suction tude.
According to the 16 aspect of the present invention, described suction tude is sealably connected to the described scroll element of determining.
According to the 17 aspect of the present invention, can be formed with at least one relief hole being communicated with one of them compression chamber described in determining vortex end plate, on described relief hole, can be provided with the switch valve that optionally opens or closes described relief hole.
According to the 18 aspect of the present invention, described switch valve can be configured in the time that the pressure in the described compression chamber being communicated with described relief hole is more than or equal to predetermined value, open described relief hole, and in the time that the pressure in the described compression chamber being communicated with described relief hole is less than described predetermined value, closes described relief hole.
According to nineteen of the present invention aspect, described predetermined value can be set the setting exhaust pressure that equals described scroll compressor for.
According to the 20 aspect of the present invention, describedly determine can be provided with two described relief holes and corresponding switch valve in vortex end plate.
According to the 21 aspect of the present invention, two described relief holes can be communicated with from different compression chambers respectively.
According to the 22 aspect of the present invention, two described relief holes can be communicated with respectively with respect to axisymmetric two compression chambers of described relief opening.
According to the 23 aspect of the present invention, described relief hole can be arranged so that in described position and quantity of determining on vortex end plate each compression chamber can both be via described relief hole pressure release in the time that its pressure is more than or equal to predetermined value.
According to the 24 aspect of the present invention, described control valve can be constructed to be permeable to optionally open and close described bypass passageways to be changed between 0% and 100% with the capacity that makes described scroll compressor.
According to the 25 aspect of the present invention, described scroll compressor can be high pressure side scroll compressor.
Although described various mode of execution of the present invention in detail at this, but should be appreciated that the present invention is not limited to the embodiment of describing in detail and illustrating here, in the situation that not departing from the spirit and scope of the invention, can be realized by those skilled in the art other modification and variant.All these modification and variant all fall within the scope of the present invention.And all members described here can be replaced by the member being equal in other technologies.
Claims (25)
1. a scroll compressor (100), comprising:
Housing (10);
Be arranged on and determine scroll element (40) in described housing (10), describedly determine scroll element (40) and comprise and determine vortex end plate (42), be formed on the described spiral helicine relief opening (46) of determining volution blade (44) and being formed on the described substantial middle place that determines vortex end plate (42) of determining vortex end plate (42) one sides;
Be arranged on the moving scroll element (50) in described housing (10), described moving scroll element (50) comprises moving vortex end plate (52) and is formed on the spiral helicine moving volution blade (54) of described moving vortex end plate (52) one sides, described moving volution blade (54) and describedly determine volution blade (44) and be engaged with each other to form betwixt a series of compression chamber (C1, C2, C3);
Air intake assembly (70), described air intake assembly (70) is communicated with described suction pressure region (S) fluid of determining to form between scroll element (40) and described moving scroll element (50); And
Bypass passageways (80,80A, 80B, 80C), described bypass passageways (80,80A, 80B, 80C) be configured to optionally provide fluid to be communicated with between the exhaust pressure district (D) that is filled with high-pressure liquid in described suction pressure region (S) and described scroll compressor.
2. scroll compressor as claimed in claim 1, wherein said air intake assembly (70) comprises suction tude (72) and safety check (74), and described safety check (74) is configured to allow fluid flow and stop fluid to flow along contrary direction towards described suction pressure region (S).
3. scroll compressor as claimed in claim 2, wherein said bypass passageways (80,80A, 80B, 80C) in be provided with control valve (85,85A, 85B, 85C), described control valve (85,85A, 85B, 85C) be configured to optionally open or close described bypass passageways (80,80A, 80B, 80C).
4. scroll compressor as claimed in claim 3, the first end of wherein said bypass passageways (80) leads to described suction pressure region (S), and the second end of described bypass passageways (80) leads to the exhaust joint (18) being arranged on described housing (10) or leads to the pipeline being connected with described exhaust joint (18) in the outside of described housing (10).
5. scroll compressor as claimed in claim 4, wherein said control valve (85) is arranged on the outside of described housing (10).
6. scroll compressor as claimed in claim 4, the first end of wherein said bypass passageways (80) extends through the described sidewall (45) of determining scroll element (40) or describedly determines vortex end plate (42).
7. scroll compressor as claimed in claim 3, wherein said bypass passageways (80A, 80B, first end 80C) leads to described suction pressure region (S), the second end of described bypass passageways (80A, 80B, 80C) leads to described exhaust pressure district (D) in the inner side of described housing (10).
8. scroll compressor as claimed in claim 7, wherein said control valve (85A, 85B, 85C) is arranged on the inner side of described housing (10).
9. scroll compressor as claimed in claim 8, wherein said bypass passageways (80A) extends through the described sidewall (45) of determining scroll element (40), and described control valve (85A) is arranged on the described described sidewall (45) of determining scroll element (40).
10. scroll compressor as claimed in claim 8, wherein said bypass passageways (80B) extends through the described sidewall (45) of determining scroll element (40) or describedly determines vortex end plate (42), and described control valve (85B) is arranged on describedly to be determined in scroll element (40) and is arranged in described suction pressure region (S).
11. scroll compressors as claimed in claim 3, wherein said safety check (74C) is arranged in described suction tude (72), and the first end of described bypass passageways (80C) is communicated with described suction pressure region (S) fluid via the part that is positioned at described safety check (74C) downstream of described suction tude (72).
12. scroll compressors as claimed in claim 11, the second end of wherein said bypass passageways (80C) leads to the exhaust joint (18) being arranged on described housing (10) in the outside of described housing (10).
13. scroll compressors as claimed in claim 11, the second end of wherein said bypass passageways (80C) leads to described exhaust pressure district (D) in the inner side of described housing (10).
14. scroll compressors as described in any one in claim 3-13, wherein said control valve (85,85A, 85B, 85C) is solenoid valve.
15. scroll compressors as described in any one in claim 2-10, wherein said safety check (74) is arranged on one end of closing on described suction pressure region (S) of described suction tude (72).
16. scroll compressors as described in any one in claim 2-13, wherein said suction tude (72) is connected to the described scroll element (40) of determining hermetically.
17. scroll compressors as described in any one in claim 1-13, wherein be formed with at least one relief hole (77) being communicated with one of them compression chamber described in determining vortex end plate (42), on described relief hole (77), be provided with the switch valve (110) that optionally opens or closes described relief hole.
18. scroll compressors as claimed in claim 17, wherein said switch valve (110) is configured in the time that the pressure in the described compression chamber being communicated with described relief hole (77) is more than or equal to predetermined value, open described relief hole, and in the time that the pressure in the described compression chamber being communicated with described relief hole (77) is less than described predetermined value, closes described relief hole.
19. scroll compressors as claimed in claim 18, wherein said predetermined value is set the setting exhaust pressure that equals described scroll compressor for.
20. scroll compressors as claimed in claim 17, wherein saidly determine to be provided with in vortex end plate (42) two described relief holes (77) and corresponding switch valve (110).
21. scroll compressors as claimed in claim 20, wherein two described relief holes (77) are communicated with from different compression chambers respectively.
22. scroll compressors as claimed in claim 20, wherein two described relief holes (77) are communicated with respectively with respect to axisymmetric two compression chambers of described relief opening (46).
23. scroll compressors as claimed in claim 17, wherein said relief hole (77) is arranged so that in described position and quantity of determining on vortex end plate (42) each compression chamber can both be via described relief hole pressure release in the time that its pressure is more than or equal to predetermined value.
24. scroll compressors as described in any one in claim 3-13, wherein said control valve (85,85A, 85B, 85C) be constructed to be permeable to optionally open and close described bypass passageways (80,80A, 80B, 80C) change between 0% and 100% with the capacity that makes described scroll compressor.
25. scroll compressors as described in any one in claim 1-13, wherein said scroll compressor is high pressure side scroll compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484179.3A CN103835943B (en) | 2012-11-23 | 2012-11-23 | Scroll compressor having a plurality of scroll members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484179.3A CN103835943B (en) | 2012-11-23 | 2012-11-23 | Scroll compressor having a plurality of scroll members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103835943A true CN103835943A (en) | 2014-06-04 |
| CN103835943B CN103835943B (en) | 2016-06-22 |
Family
ID=50799763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210484179.3A Active CN103835943B (en) | 2012-11-23 | 2012-11-23 | Scroll compressor having a plurality of scroll members |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103835943B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869283A (en) * | 2018-08-17 | 2018-11-23 | 苏州旋凌科技有限公司 | A kind of capacity modulated scroll compressor |
| CN109435623A (en) * | 2018-10-22 | 2019-03-08 | 江苏银河同智新能源科技有限公司 | Vortex pump with stable exhaust, vortex compressor and vehicle-mounted heat pump air conditioning system |
| CN113606134A (en) * | 2021-06-11 | 2021-11-05 | 浙江科技学院 | Optimization control method for electromagnetic axial dynamic sealing of scroll machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418740B1 (en) * | 2001-02-22 | 2002-07-16 | Scroll Technologies | External high pressure to low pressure valve for scroll compressor |
| CN1367320A (en) * | 2001-01-23 | 2002-09-04 | 株式会社日立制作所 | Vortex compressor |
| JP2003254265A (en) * | 2002-02-27 | 2003-09-10 | Mitsubishi Heavy Ind Ltd | Scroll type compressor and controlling method therefor |
| CN1510274A (en) * | 1999-06-01 | 2004-07-07 | Lg电子株式会社 | Device for preventing vaccum in vortex compressor |
| CN102086865A (en) * | 2009-12-08 | 2011-06-08 | 丹佛斯涡旋技术有限责任公司 | Scroll compressor capacity modulation with hybrid solenoid and fluid control |
| CN202971187U (en) * | 2012-11-23 | 2013-06-05 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
-
2012
- 2012-11-23 CN CN201210484179.3A patent/CN103835943B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510274A (en) * | 1999-06-01 | 2004-07-07 | Lg电子株式会社 | Device for preventing vaccum in vortex compressor |
| CN1367320A (en) * | 2001-01-23 | 2002-09-04 | 株式会社日立制作所 | Vortex compressor |
| US6418740B1 (en) * | 2001-02-22 | 2002-07-16 | Scroll Technologies | External high pressure to low pressure valve for scroll compressor |
| JP2003254265A (en) * | 2002-02-27 | 2003-09-10 | Mitsubishi Heavy Ind Ltd | Scroll type compressor and controlling method therefor |
| CN102086865A (en) * | 2009-12-08 | 2011-06-08 | 丹佛斯涡旋技术有限责任公司 | Scroll compressor capacity modulation with hybrid solenoid and fluid control |
| CN202971187U (en) * | 2012-11-23 | 2013-06-05 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869283A (en) * | 2018-08-17 | 2018-11-23 | 苏州旋凌科技有限公司 | A kind of capacity modulated scroll compressor |
| CN109435623A (en) * | 2018-10-22 | 2019-03-08 | 江苏银河同智新能源科技有限公司 | Vortex pump with stable exhaust, vortex compressor and vehicle-mounted heat pump air conditioning system |
| CN109435623B (en) * | 2018-10-22 | 2022-01-18 | 江苏银河同智新能源科技有限公司 | Vortex pump with stable exhaust, vortex compressor and vehicle-mounted heat pump air conditioning system |
| CN113606134A (en) * | 2021-06-11 | 2021-11-05 | 浙江科技学院 | Optimization control method for electromagnetic axial dynamic sealing of scroll machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103835943B (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202971187U (en) | Scroll compressor having a plurality of scroll members | |
| EP3358188B1 (en) | Scroll compressor | |
| KR100862199B1 (en) | Plural compressors | |
| AU2004202610B2 (en) | Plural compressors | |
| CA1233144A (en) | Controlled suction unloading in a scroll compressor | |
| US4383805A (en) | Gas compressor of the scroll type having delayed suction closing capacity modulation | |
| CN104514719A (en) | Multi-Stage Pump Having Reverse Bypass Circuit | |
| US20200088197A1 (en) | Scroll compressor | |
| JP6004232B2 (en) | Refrigeration cycle equipment | |
| CN103790831B (en) | Compressor with a compressor housing having a plurality of compressor blades | |
| KR20060083779A (en) | Multi-stage compression type rotary compressor | |
| CN105697369A (en) | Scroll compressor | |
| EP3415764B1 (en) | Scroll compressor | |
| CN202707487U (en) | Compressor | |
| CN108591537B (en) | Fluid pressure switching valve, variable capacity rotary compressor, and refrigeration cycle device | |
| CN103835943A (en) | Scroll compressor having a plurality of scroll members | |
| KR102415751B1 (en) | Scroll compressor | |
| US10815998B2 (en) | Scroll compressor having a capacity variable device | |
| EP3354899B1 (en) | Scroll compressor | |
| CN103573619A (en) | Compressor | |
| CN203614399U (en) | Scroll compressor having a plurality of scroll members | |
| KR102515119B1 (en) | Scroll compressor | |
| KR101302307B1 (en) | Gas compressor | |
| CN104061162A (en) | Compressor system and control method thereof | |
| CN113007093B (en) | Scroll compressor having a rotor with a rotor shaft having a rotor shaft with a |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |