CN1314899C - Swirl compressor - Google Patents

Swirl compressor Download PDF

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Publication number
CN1314899C
CN1314899C CNB021219508A CN02121950A CN1314899C CN 1314899 C CN1314899 C CN 1314899C CN B021219508 A CNB021219508 A CN B021219508A CN 02121950 A CN02121950 A CN 02121950A CN 1314899 C CN1314899 C CN 1314899C
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CN
China
Prior art keywords
scroll compressor
bent axle
flexible member
eccentric
volute pipe
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Expired - Fee Related
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CNB021219508A
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Chinese (zh)
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CN1462837A (en
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具仁会
张英逸
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LG Electronics Inc
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LG Electronics Inc
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Priority to CNB021219508A priority Critical patent/CN1314899C/en
Publication of CN1462837A publication Critical patent/CN1462837A/en
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Publication of CN1314899C publication Critical patent/CN1314899C/en
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Abstract

The present invention discloses a scroll compressor which can appositely reply the volume variation of a compression chamber caused by the inflow of incompressible fluid and the analog thereof. A rotating scroll can move between the rotating scroll and an eccentric part of a crank shaft in the radial direction by installing a radical moving device so as to prevent the scroll from being broken and improve the reliability of the compressor. The present invention a casing, a drive unit, a compression unit and a flexible device, wherein the inner part of the casing has high pressure; the drive unit is arranged at the lower part of the casing, and is connected with the crank shaft to produce drive force; the compression unit comprises the rotating scroll and a fixed scroll which form eccentric connection with the crank shaft so that the compression chamber is formed between the rotating scroll and the fixed scroll; when incompressible material flows into the compression chamber, the flexible device is used for retracting the rotating scroll in the radical direction and is arranged between the compression unit and the crank shaft.

Description

Scroll compressor
Technical field
The present invention relates to a kind of scroll compressor, it can locally be tackled along the volume-variation of radially working of pressing chamber and prevent the breakage of volute pipe, and improves the reliability of compressor.
Prior art
Usually, scroll compressor is the equipment that comes convection cell to compress by the volume that changes pressing chamber, and wherein pressing chamber is made up of a pair of scroll compressor.Compare with reciprocal compressor or rotary compressor, the efficient height of scroll compressor, noise is low.And, can make the scroll compressor that weight is little, volume is little, thereby enlarge its application gradually.
Fig. 1 is the sectional drawing according to the scroll compressor of correlation technique, and Fig. 2 is the amplification profile of " A " part among Fig. 1.
With reference to Fig. 1, a kind of scroll compressor according to correlation technique comprises the housing 106 with seal space, and wherein, the discharge pipe 104 that is used for the absorption tube 102 of inspiration fluid and is used to get rid of the fluid of compression is connected to the top and the side of housing; Driver element 108 is located at the bottom of housing 106, so that produce driving force; Compression unit 112 is located at the top of housing 106, and links to each other with bent axle 110 with driver element 108, so that realize the compression of fluid.
Driver element 108 comprises the stator 114 that is fixed on housing 106 circumferencial directions and is located at the rotor 116 of stator 114 inner circumferential surfaces, so that be fixed on the bent axle 110.In case stator 114 is applied electric power, bent axle 110 will rotate under the reciprocating between stator 114 and the rotor 116.
Compression unit 112 comprises: fixedly the volute pipe 120, and it has involute formula set casing 118 and is connected to absorption tube 102, thereby link to each other with the top of housing 106; Rotation volute pipe 124, it has and set casing 118 corresponding involute formula rotational shells 122, so that be connected to bent axle 110 prejudicially; Wherein, at the pressing chamber that fixedly is provided with a unanimity between volute pipe 120 and the rotation volute pipe 124.
The body frame 128 that is fixed on housing 106 tops supports bent axle 110 so that its rotation.The boss 130 interior eccentric elements 132 that insert rotation volute pipe 124 form on the top of bent axle 110, so that 124 rotations of rotation volute pipe.Form an oil plant runner 134 in the axial direction, so that provide the lubricant oil that is full of housing 106 bottoms to friction parts, this friction parts is between rotation volute pipe 124 and eccentric element 132.
Between body frame 128 and rotation volute pipe 124, be formed with back pressure chamber 136, so that between absorption pressure that the compression oil plant of compression oil plant that flows into and outflow is produced and discharge pressure, form intermediate pressure.And, on the lower surface of rotation volute pipe 124, be equipped with cross (oldham) circle 138, the rotation that is used for preventing to rotate volute pipe 124.
Seal ring 140 inserts the eccentric element 132 of bent axle 110 and rotates between the boss 130 of volute pipe 124, thereby prevents to flow out back pressure chamber 136 by the oil plant that oil plant runner 134 sucks.
Next the operation of the correlation technique scroll compressor with said structure is described.
When applying electric power to driver element 108, the bent axle 110 that is connected to rotor 116 begins to rotate.Simultaneously, eccentric element 132 rotations are so that rotation volute pipe 124 cycle rotations.The fluid that has passed through absorption tube 102 inflow pressing chambers 126 is under the effect of the circular movement of rotation volute pipe 124, thereby the core that flows to pressing chamber 126 is compressed, and the fluid after the compression is discharged into the inside of housing 106 by exhaust outlet 142 then.The high-pressure liquid that is discharged by exhaust outlet 142 is discharged into the outside by the discharge pipe 104 that is connected with housing 106 sides.
When the fluid that is discharged into housing 106 inside pressurizes to the oil plant that is stored in housing 106 bottoms, compressed oil plant is provided between the boss 130 and eccentric element 132 of rotation volute pipe 124 along oil plant runner 134, thereby be lubricated, and upwards rotation volute pipe 124 is exerted pressure, so that keep fitting tightly between rotational shell 122 and the set casing 118.
In this case, the section area of eccentric element 132 is done to such an extent that equate with the section area of bent axle 110, thereby not load generation in the axial direction.That is, downwards the pressure of the oil plant of eccentric element 132 pressurizations is equaled upwards hydrodynamic pressure to bent axle 110 pressurizations, thereby load can not influence to some extent to bent axle 110 in the axial direction.
It's a pity that the scroll compressor of correlation technique has bent axle and the eccentric element that section area is equal to each other as described above, and rotation volute pipe can not radial motion.When incompressible fluid such as liquid refrigerant, oil plant or particle flow into pressing chamber, thereby improve the internal pressure in the pressing chamber abnormally, then the volume of pressing chamber can not be in radial variation.Thereby, the rotational shell of rotation volute pipe and fixedly the set casing of volute pipe break, and torsional pressure focuses on driver element or the bent axle.
Summary of the invention
Therefore, the present invention is directed to a kind of scroll compressor, it can overcome basically because the limitation and the caused one or more problems of shortcoming of correlation technique.
An object of the present invention is to propose a kind of scroll compressor, move radially equipment by installing one, this equipment can make rotation volute pipe carry out moving radially between the eccentric part of bent axle and rotation volute pipe, can local reply owing to flow into the volume-variation of incompressible liquid or the caused pressing chamber of analog, thereby prevent that the volute pipe is broken and improve the reliability of compressor.
Additional advantage of the present invention, purpose and feature will partly be proposed in the following description, and concerning those know the personnel of ordinary skill, by testing following practice of the present invention or can understanding other advantages of part of the present invention, purpose and feature from the practice of the present invention.Can recognize and obtain purpose of the present invention and other advantage in the structure that from specification and claim and accompanying drawing, particularly points out.
For realizing these purposes and other advantage, and according to purpose of the present invention, as show herein and broadly narrating, a kind of scroll compressor according to the present invention comprises: inside has the very housing of high pressure; Driver element, it is located at lower part of frame, and is connected to produce driving force with bent axle; Compression unit, it comprises the rotation volute pipe that is connected with crankshaft eccentric and fixing volute pipe, thereby at rotation volute pipe with fixedly form pressing chamber between the volute pipe; Flexible apparatus, when incompressible material flowed into pressing chamber, it was used for from radially recalling rotation volute pipe, and this flexible apparatus is installed between compression unit and the bent axle.
Preferably, form an oil plant runner that runs through bent axle along its length, form an eccentric part in the top of bent axle, the cross sectional area of this eccentric part is less than the cross sectional area of bent axle.
More preferably, flexible apparatus is the flexible member that inserts the boss inner circumferential surface, thereby is rotated, and this boss shape is formed in the lower surface of rotation volute pipe, one slit passes the central authorities of this flexible member, thereby and the eccentric part of bent axle insert can slide in this slit mobile.
More preferably, eccentric part stretches from bent axle top and forms predetermined step shape part, and this eccentric part comprises a straight part, and this straight part is to obtain by the both sides of cutting eccentric part along its length.
More preferably, on the length direction of flexible member, form slit, slide so that the straight part of eccentric part inserted in this slit with predetermined length, and the eccentric part predetermined distance of radially sliding.
More preferably, between the inner peripheral surface of the outer peripheral surface of flexible member and rotation volute pipe boss, seal ring is installed.
More preferably, the cross sectional area of bent axle equals the outer diameter area of flexible member.
More preferably, on outside direction, flange unit is from the outstanding predetermined width of bent axle upper surface.
More preferably, form a fin in the excircle direction of the lower surface of flexible member, so that closely paste and arrive the upper surface of bent axle.
More preferably, form a fin in the inner circumference direction of the lower surface of flexible member, so that closely paste and arrive the upper surface of bent axle.
More preferably, between the upper surface of the lower surface of flexible member and bent axle, insert seal element.
More preferably, along the circumferential direction form a fit at the lower surface of flexible member, thereby seal element is assemblied in the fit.
More preferably, along the circumferential direction form fit at the upper surface of bent axle, thereby seal element is assemblied in this fit.
More preferably, seal element is made by the material that with the teflon is matrix.
More preferably, between the external peripheral surface of the inner circumferential surface of flexible member and crankshaft eccentric parts, be connected with elastomer.
More preferably, above-mentioned elastomer is a helical spring.
Preferably, flexible apparatus is the flexible member that inserts in the boss, and to be rotated, this boss shape is formed in the lower surface of rotation volute pipe, and this flexible apparatus has an eccentric opening that departs from its center and form, thereby the eccentric part of bent axle inserts in this eccentric opening.
More preferably, eccentric part is cylindrical, so that extend from the upper surface of bent axle.
More preferably, flexible member is cylindrical, so that insert the inner circumferential surface of boss, and is wherein departing from flexible member center eccentric position to a certain degree, forms an eccentric opening.
Can understand, aforementioned is exemplary, indicative to general description of the present invention and ensuing being described in detail, and such as requested, attempts the invention provides further explanation.
Summary of drawings
Accompanying drawing is used for to the invention provides further understanding, and is combined into the application's a part with the application.Accompanying drawing illustrates embodiments of the invention, and is used from explanation principle of the present invention with specification one.
In the accompanying drawings:
Fig. 1 is the sectional drawing of the scroll compressor of correlation technique;
Fig. 2 is the sectional drawing of the amplification of " A " part among Fig. 1
Fig. 3 is the sectional drawing according to the scroll compressor of first embodiment of the invention;
Fig. 4 is according to the first embodiment of the present invention, the sectional drawing of the amplification of " B " part among Fig. 3;
Fig. 5 is according to the first embodiment of the present invention, along the sectional drawing of II-II line among Fig. 4;
Fig. 6 is for according to a second embodiment of the present invention, the sectional drawing of amplification of " B " part among Fig. 3;
Fig. 7 is an a third embodiment in accordance with the invention, the sectional drawing of the amplification of " B " part among Fig. 3;
Fig. 8 is an a fourth embodiment in accordance with the invention, the sectional drawing of the amplification of " B " part among Fig. 3;
Fig. 9 is for according to a fifth embodiment of the invention, the sectional drawing of amplification of " B " part among Fig. 3;
Figure 10 is for according to a sixth embodiment of the invention, the sectional drawing of amplification of " B " part among Fig. 3;
Figure 11 is for according to a seventh embodiment of the invention, along the sectional drawing of II-II tangent line among Fig. 4;
Figure 12 is according to the eighth embodiment of the present invention, along the sectional drawing of II-II tangent line among Fig. 4; With
Figure 13 is according to the eighth embodiment of the present invention, along the sectional drawing of III-III tangent line among Fig. 4.
Detailed Description Of The Invention
Describe the preferred embodiments of the present invention below in detail, this embodiment is shown in the drawings.
Fig. 3 is the sectional drawing according to the scroll compressor of first embodiment of the invention; Fig. 4 is according to the first embodiment of the present invention, the sectional drawing of the amplification of " B " part among Fig. 3; Fig. 5 is according to the first embodiment of the present invention, along the sectional drawing of II-II line among Fig. 4.
To Fig. 5, according to a kind of scroll compressor of the present invention, comprising: inside has the very housing 2 of high pressure with reference to Fig. 3; Driver element 4, it is located at the bottom of housing 2, is used for producing driving force; Compression unit 8, it links to each other with bent axle 6 with driver element 4, so that convection cell compresses.
Housing 2 is the container of sealed type, produces high pressure therein, in housing 2, is used for discharge pipe 34 that the absorption tube 28 and being used for of absorption fluids discharges the fluid of compression to be connected to the top and the sidepiece of housing 2.
Driver element 4 comprises along the fixing stator 10 of the circumferencial direction of housing 2 and is located at rotor 12 on stator 10 inner circumferential surfaces, so that driver element 4 is fixed on the bent axle 6.In case to stator 10 energisings, bent axle 6 will be rotated under the reciprocal reaction between stator 10 and the rotor 12.
The body frame 14 that bent axle 6 is fixed in the housing 2 supports and is rotated.An eccentric part 16 is formed at the top at bent axle 6.And oil plant runner 18 runs through bent axle 6, so that the slide member in compressor provides the oil plant that is stored in housing 2 bottoms.
Compression unit 8 comprises fixedly volute pipe 22 and rotation volute pipe 26.Fixedly volute pipe 22 has an involute formula set casing 20, and is fixed to the inside of housing 2, and wherein, absorption tube 28 is connected with a fixing side of volute pipe 22; Rotation volute pipe 26 comprises one and set casing 20 and boss 34 corresponding involute formula rotational shells 24, and the eccentric part 16 of bent axle 6 is inserted in the rotation volute pipe 26.
Be formed with tap hole 36 at the fixing central position of volute pipe 22, be used to discharge the fluid in the housing 2, the volume-variation of the pressing chamber between set casing 20 and rotational shell 24 is compressed this fluid.Back pressure chamber 38 is formed in the space of 26 of body frame 14 and rotation volute pipes, so as pressing chamber 32 in, to flow into and the absorption pressure that oil plant produced of outflow and discharge pressure between keep an intermediate pressure.
Flexible member 40 is installed between the eccentric part 16 of the inner circumferential surface of boss 34 of rotation volute pipe 26 and bent axle 6, when incompressible fluid such as liquid refrigerant, oil plant or particle flowed into pressing chamber 32, this flexible member 40 can make rotation volute pipe 26 radially recall.
Flexible member 40 is inserted in the inner circumferential surface of the boss 34 that rotates volute pipe 26, can rotate.And, forming slit 42 so that pass flexible member 40, the eccentric part 16 of bent axle 6 slides in slit 42.
Like this, the eccentric part 16 of bent axle 6 extends from the upper surface of bent axle 6, thus its cross sectional area less than the cross sectional area of bent axle 6, and eccentric part 16 has a straight part 46, along its length the both sides of this straight part 46 etc. separately.Upper surface at bent axle 6 forms step shape part 44, and eccentric part 16 along the circumferential direction extends from certain part of step shape part 44.
The both sides of the slit 42 of flexible member 40 are lineal shape, thereby do straight line motion along eccentric part 16.And the length of slit 42 is enough to compensate rotation volute pipe 26 from radially recalling the displacement that is produced.
The upper surface of flexible member 40 has the height equal with the height of eccentric part 16, and the lower surface of flexible member 40 closely is attached on the trapezoidal portions 44 of bent axle 6.That is, the oil plant that sucks by oil plant runner 18 is to pressing down flexible member 40, and the oil plant pressure of compressing flexible member 40 keeps the lower surface of flexible member 40 closely to be attached to state on the trapezoidal portions 44 of bent axle 6.Thereby the oil dripping that prevents to be provided by oil plant runner 18 is in back pressure chamber 38.
Bearing element with sealing function is inserted between the inner circumferential surface of boss 34 of the external peripheral surface of flexible member 40 and rotation volute pipe 26, thereby can prevent that oil plant from leaking between boss 34 and flexible member 40.
In this case, the cross sectional area that forms bent axle 6 equals the outer diameter area of flexible member 40, so load can not influence bent axle 6 in the axial direction.Promptly, the strength that the promotion bent axle 6 that is produced by the high-pressure liquid in the housing 2 makes progress is offset by other strength, this other strength is produced by the oil plant pressure by oil plant runner 18 discharging and to lower compression eccentric part 16 and flexible member 40, thereby prevents that load from influencing bent axle 6 in the axial direction.
Hereinafter, describe according to the operation with scroll compressor of said structure of the present invention.
In case driver element 4 logical powering on, bent axle 6 is promptly along with rotor 12 begins rotation.When eccentric part 16 carried out centrifugal rotation, the flexible member 40 that is installed in energy axial motion on the centrifugal parts 16 also was rotated.Along with the rotation of flexible member 40, rotation volute pipe 26 is done circumference and is rotated.When rotation volute pipe 26 is done the circumference rotation, the volume-variation compression that rotational shell 24 and set casing are 20 sucks the fluid in the pressing chamber 32, this fluid is inhaled in the pressing chamber 32 by absorption tube 28, thereby fluid is discharged into the inside of housing 2 through discharge orifice 30.Then, the fluid that is discharged into housing 2 inside is discharged away through discharge pipe 30.In this case, flexible member 40 is subjected to the centrifugal action of centrifugal parts 16, and is mobile on centrifugal direction along the straight part 46 of centrifugal parts 16, thereby keeps the gap between rotational shell 24 and the set casing 20 equably.
When the high-pressure liquid in being discharged to housing 2 pressed to the oil plant that is stored in housing 2 bottoms, oil plant was discharged into the top of eccentric part 16 along oil plant runner 18, thereby sliding part is lubricated.The pressure of fluids such as the oil plant pressure that is discharged from this case.
And the high pressure oil plant that is discharged to eccentric part 16 tops acts on the upper surface of eccentric part 16 and flexible member 40, and to lower compression eccentric part 16 and flexible member 40.In this case, the pressure of fluid is at the internal work of housing 2.If upwards bear down on one bent axle 6, the strength of compressing eccentric part 16 and flexible member 40 cancels each other out with other strength that promotes bent axle 6, thereby prevents that axial force from exerting an influence to bent axle 6.
That is, the cross sectional area sum of eccentric part 16 and flexible member 40 equals the cross sectional area of bent axle 6, and the pressure of oil plant equals the pressure of fluid.Like this, make progress and the downward load that acts on bent axle 6 is equal to each other, thereby bent axle 6 is not subjected to the effect of axial force.
Therefore, be subjected to the downward strength effect of oil plant pressure, flexible member 40 closely is attached to the trapezoidal portions 44 of bent axle 6, leaks between flexible member 40 and eccentric part 16 to prevent oil plant.And, be inserted in seal ring 50 between flexible member 40 and the boss 34 and prevented other leakage between flexible member 40 and the boss 34.
In the normal course of operation of compressor, when incompressible material such as liquid refrigerant, oil plant or particulate matter flow in the pressing chamber 32, as long as the 26 radially withdrawals of rotation volute pipe, the volume of pressing chamber 32 just changes at once, thus the volume-variation of corresponding pressing chamber 32.
That is, if the incompressible fluid that is flowed into influences, the pressure that acts on pressing chamber 32 increases to more than the normal value, then diametrically rotation volute pipe 26 is imposed a restoring force.At this moment, the slit 42 of flexible member 40 is mobile along radially sliding of eccentric part 16, thereby rotation volute pipe 26 is radially moved.
Fig. 6 is for according to a second embodiment of the present invention, the sectional drawing of amplification of " B " part among Fig. 3.
With reference to Fig. 6, have such structure according to the scroll compressor of second embodiment of the invention: the position in that the eccentric part 16 of bent axle 6 stretches out forms a flange unit 56 from the outstanding predetermined width of this position direction outward.That is, the lower surface of flexible member 40 contacts with flange unit 56, with the area of contact of increase flexible member 40, thereby can prevent more effectively that oil plant from leaking.
Fig. 7 is an a third embodiment in accordance with the invention, the sectional drawing of the amplification of " B " part among Fig. 3.
With reference to Fig. 7, scroll compressor according to third embodiment of the invention has such structure: on the lower surface of the flexible member 40 that contacts with the flange unit 56 of bent axle 6, form a fin 60, it is towards the outstanding predetermined width of excircle direction of the lower surface of flexible member 40.
That is, for realizing sealing, the lower surface of flexible member 40 should contact with the upper surface of flange unit 56, thereby requires accurate polishing.Yet, when polishing the upper surface of flange unit 56, be subjected to the influence of eccentric part 16, the precision that the corresponding operating time prolongs and is difficult to the work that reaches.Therefore, fin 60 made circumferencial direction is outstanding from the lower surface of flexible member 40 outwardly, have only the position of flange unit 56 upper surfaces that contacts with fin 60 to require the polishing of precision like this.Thereby, reduced and be easy to reach the precision machining of lapped face man-hour.
Fig. 8 is an a fourth embodiment in accordance with the invention, the sectional drawing of the amplification of " B " part among Fig. 3.
With reference to Fig. 8, scroll compressor according to fourth embodiment of the invention has such structure: will contact the lower surface place of flexible member 40 with the flange unit 56 of bent axle 6, form a fin 62, it is along the outstanding predetermined width of inner circumference direction of the lower surface of flexible member 40.So, can produce and the effect identical according to the scroll compressor of third embodiment of the invention according to the scroll compressor of fourth embodiment of the invention.
Fig. 9 is for according to a fifth embodiment of the invention, the sectional drawing of amplification of " B " part among Fig. 3.
With reference to Fig. 9, a kind of scroll compressor according to fifth embodiment of the invention comprises a seal element 66, it is installed between the lower surface of the flange unit 56 of bent axle 6 and flexible member 40, leaks in the back pressure chamber 38 by the oil plant that oil plant runner 18 flows into eccentric parts 16 upper surfaces preventing.
That preferably uses annular makes seal element 66 with teflon as stock.For seal element 66 is installed, along the circumferential direction form a fit 68 on the lower surface edge of flexible member 40.
Figure 10 is for according to a sixth embodiment of the invention, the sectional drawing of amplification of " B " part among Fig. 3.
With reference to Figure 10, a kind of scroll compressor according to sixth embodiment of the invention comprises the fit 72 and a seal element 70 of a band shape, this fit 72 along the circumferential direction forms at the upper surface of the flange unit 56 of bent axle 6, and sealing element 70 inserts in the fit 72.And, preferably uses the annular seal element of making as stock with teflon 70.
Figure 11 is for according to a seventh embodiment of the invention, along the sectional drawing of II-II tangent line among Fig. 4.
With reference to Figure 11, in scroll compressor according to seventh embodiment of the invention, elastomer 76 is connected between the outer surface of eccentric part 16 of the internal surface of flexible member 40 and bent axle 6, so that produce an elastic force, this elastic force can make flexible member 40 be returned to reset condition again after sliding.And preferably with helical spring as elastomer 76.
Figure 12 is according to the eighth embodiment of the present invention, and along the sectional drawing of II-II tangent line among Fig. 4, Figure 13 is according to the eighth embodiment of the present invention, along the sectional drawing of III-III tangent line among Figure 12.
With reference to Figure 12 and 13, a kind of scroll compressor according to eighth embodiment of the invention comprises columniform flexible member 80, eccentric opening 82 and and columniform eccentric part 84, columniform flexible member 80 is inserted in the boss 34 that rotates volute pipe 26 so that be rotated, eccentric opening 80 departs from flexible member 80 on the direction at flexible member 80 centers and forms, thereby columniform eccentric part 84 inserts in the eccentric openings 80 and is rotated.
In scroll compressor with said structure according to the eighth embodiment of the present invention, bent axle 6 rotations, thereby eccentric part 84 eccentric rotations.Like this, thus flexible member 80 rotation makes rotation volute pipe 26 carry out circumference rotates.In this case, if the 26 radially withdrawals of rotation volute pipe, thus flexible member 80 is around radially motion of eccentric opening 82 rotations.
Have following effect or advantage according to of the present invention for the scroll compressor of said structure:
Flexible member is installed in the eccentric part of bent axle and rotates between the boss of volute pipe, thereby rotation volute pipe is radially moved.If raise because the inflow of incompressible fluid such as liquid refrigerant, oil plant or particulate matter causes the pressing chamber internal pressure, rotation volute pipe will radially be withdrawn, so that cooperate with the volume-variation of pressing chamber on one's own initiative.Therefore, the present invention can prevent to rotate the rotational shell of volute pipe and the fixedly fragmentation of the set casing of volute pipe, the reliability of promoting compressor simultaneously.
Previous embodiment is exemplary, can not be construed as limiting the invention.Can easily be used in instruction of the present invention in the equipment of other type.Illustration of the present invention illustrates and is not the scope that limits claim.It is of the present invention that many to substitute, revise and change be conspicuous to those skilled in the art.

Claims (19)

1. scroll compressor comprises:
Inside has the very housing of high pressure;
Driver element is located at lower part of frame, and is connected to produce driving force with bent axle;
Compression unit comprises the rotation volute pipe that is connected with crankshaft eccentric and fixing volute pipe, thereby at rotation volute pipe with fixedly form pressing chamber between the volute pipe;
It is characterized in that,
Described scroll compressor also comprises flexible apparatus, and when incompressible material flowed into pressing chamber, this flexible apparatus was used for radially withdrawing and rotates the volute pipe, and this flexible apparatus is installed between compression unit and the bent axle.
2. scroll compressor according to claim 1 is characterized in that, runs through bent axle along its length and forms the oil plant runner, forms eccentric part on the top of bent axle, and the cross sectional area of this eccentric part is less than the cross sectional area of bent axle.
3. scroll compressor as claimed in claim 2, it is characterized in that, described flexible apparatus is the flexible member that inserts the boss inner circumferential surface, thereby be rotated, described boss shape is formed in the lower surface of rotation volute pipe, slit passes the central authorities of described flexible member, thereby and the eccentric part of bent axle insert can slide in this slit mobile.
4. scroll compressor as claimed in claim 2, it is characterized in that, described eccentric part stretches from bent axle top and forms predetermined step shape part, and described eccentric part comprises straight part, and this straight part is to obtain by the both sides of cutting described eccentric part along its length.
5. scroll compressor as claimed in claim 4, it is characterized in that, on the length direction of described flexible member, form slit, slide so that the straight part of eccentric part inserted in this slit with predetermined length, and the eccentric part predetermined distance of radially sliding.
6. scroll compressor as claimed in claim 3 is characterized in that, between the inner peripheral surface of the outer peripheral surface of described flexible member and described rotation volute pipe boss seal ring is installed.
7. scroll compressor as claimed in claim 3 is characterized in that, the cross sectional area of described bent axle equals the outer diameter area of described flexible member.
8. scroll compressor as claimed in claim 3 is characterized in that, on outside direction, flange unit is from the outstanding predetermined width of described bent axle upper surface.
9. scroll compressor as claimed in claim 3 is characterized in that, forms fin at described flexible member lower surface along the direction of excircle, so that closely paste and to the upper surface of described bent axle.
10. scroll compressor as claimed in claim 3 is characterized in that, forms fin at described flexible member lower surface along the direction of inner circumference, so that closely paste and to the upper surface of described bent axle.
11. scroll compressor as claimed in claim 3 is characterized in that, between the upper surface of the lower surface of described flexible member and described bent axle, inserts seal element.
12. scroll compressor as claimed in claim 11 is characterized in that, along the circumferential direction forms fit at the lower surface of flexible member, thereby described seal element is assemblied in this fit.
13. scroll compressor as claimed in claim 11 is characterized in that, along the circumferential direction forms fit at the upper surface of bent axle, thereby described seal element is assemblied in this fit.
14. scroll compressor as claimed in claim 11 is characterized in that, described seal element is that stock is made with the teflon.
15. scroll compressor as claimed in claim 3 is characterized in that, is connected with elastomer between the external peripheral surface of the inner circumferential surface of described flexible member and described crankshaft eccentric parts.
16. scroll compressor as claimed in claim 15 is characterized in that, described elastomer is a helical spring.
17. scroll compressor as claimed in claim 1, it is characterized in that, described flexible apparatus is the flexible member that inserts in the boss, to be rotated, this boss shape is formed in the lower surface of rotation volute pipe, and described flexible apparatus has an eccentric opening that departs from its center and form, thereby the eccentric part of bent axle inserts in this eccentric opening.
18. scroll compressor as claimed in claim 17 is characterized in that, described eccentric part is cylindrical, so that extend from the upper surface of bent axle.
19. scroll compressor as claimed in claim 17 is characterized in that, described flexible member is cylindrical, so that insert the inner circumferential surface of boss, and forms eccentric opening in the position of departing from described flexible member center predetermined extent.
CNB021219508A 2002-05-28 2002-05-28 Swirl compressor Expired - Fee Related CN1314899C (en)

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CN1314899C true CN1314899C (en) 2007-05-09

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CN102297132A (en) * 2010-06-24 2011-12-28 Lg电子株式会社 Scroll compressor
CN103807170A (en) * 2014-03-11 2014-05-21 张云娣 Ultrahigh-pressure and fluorine-free protection flexible scroll compressor
CN112119219A (en) * 2018-05-04 2020-12-22 空气平方公司 Liquid cooling of fixed and orbiting scroll compressors, expanders or vacuum pumps

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Publication number Priority date Publication date Assignee Title
CN102678563B (en) * 2011-03-08 2016-01-27 上海日立电器有限公司 A kind of radial compliance structure of scroll compressor

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US4764096A (en) * 1986-05-30 1988-08-16 Matsushita Electric Industrial Co., Ltd. Scroll compressor with clearance between scroll wraps
US5427511A (en) * 1986-08-22 1995-06-27 Copeland Corporation Scroll compressor having a partition defining a discharge chamber
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102297132A (en) * 2010-06-24 2011-12-28 Lg电子株式会社 Scroll compressor
US8672655B2 (en) 2010-06-24 2014-03-18 Jeonghun Kim Scroll compressor having a pass hole for preventing over-compression under a low load condition
CN102297132B (en) * 2010-06-24 2014-09-17 Lg电子株式会社 Scroll compressor
CN103807170A (en) * 2014-03-11 2014-05-21 张云娣 Ultrahigh-pressure and fluorine-free protection flexible scroll compressor
CN103807170B (en) * 2014-03-11 2016-04-06 张云娣 A kind of flexible vortex compressor crossing high pressure and the protection of scarce fluorine
CN112119219A (en) * 2018-05-04 2020-12-22 空气平方公司 Liquid cooling of fixed and orbiting scroll compressors, expanders or vacuum pumps
CN112119219B (en) * 2018-05-04 2022-09-27 空气平方公司 Liquid cooling of fixed and orbiting scroll compressors, expanders or vacuum pumps

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