CN1847756A - Defroster of refrigerant circuit, and refrigeration unit - Google Patents

Defroster of refrigerant circuit, and refrigeration unit Download PDF

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Publication number
CN1847756A
CN1847756A CNA2006100743692A CN200610074369A CN1847756A CN 1847756 A CN1847756 A CN 1847756A CN A2006100743692 A CNA2006100743692 A CN A2006100743692A CN 200610074369 A CN200610074369 A CN 200610074369A CN 1847756 A CN1847756 A CN 1847756A
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China
Prior art keywords
cylinder
closed container
cold
producing medium
compressor
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Granted
Application number
CNA2006100743692A
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Chinese (zh)
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CN1847756B (en
Inventor
只野昌也
山崎晴久
松本兼三
松浦大
里和哉
斎藤隆泰
江原俊行
今井悟
小田淳志
佐藤孝
松森裕之
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Publication date
Priority claimed from JP2001295859A external-priority patent/JP3913507B2/en
Priority claimed from JP2001295866A external-priority patent/JP2003097472A/en
Priority claimed from JP2001295673A external-priority patent/JP2003097478A/en
Priority claimed from JP2001296165A external-priority patent/JP4236400B2/en
Priority claimed from JP2001295663A external-priority patent/JP2003097434A/en
Priority claimed from JP2001295654A external-priority patent/JP2003097433A/en
Priority claimed from JP2001295678A external-priority patent/JP2003097479A/en
Priority claimed from JP2001296180A external-priority patent/JP3986283B2/en
Priority claimed from JP2001311699A external-priority patent/JP3963691B2/en
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of CN1847756A publication Critical patent/CN1847756A/en
Application granted granted Critical
Publication of CN1847756B publication Critical patent/CN1847756B/en
Anticipated expiration legal-status Critical
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

There is provided a rotary compressor capable of preventing deterioration of performance following plug fixing carried out to prevent falling-off of a spring member. The rotary compressor comprises a cylinder constituting a rotary compression element, a roller engaged with an eccentric portion formed in a rotary shaft of an electric element, and eccentrically rotated in the cylinder, a vane abutted on the roller to divide an inside of the cylinder into a low pressure chamber side and a high pressure chamber side, a spring member for always pressing the vane to the roller side, a housing portion of the spring member, formed in the cylinder, and opened to the vane side and a hermetically sealed container side, a plug positioned in the hermetically sealed container side of the spring member, and inserted into the housing portion to fit into a gap, and an O ring attached around the plug to seal a part between the plug and the housing portion. In this case, a space between the cylinder and the hermetically sealed container is set smaller than a distance from the O ring to an end of the plug on the hermetically sealed container side.

Description

The defroster of refrigerant loop, and refrigerating plant
The application be application number " 02143506.5 ", the applying date " on September 26th, 2002 ", denomination of invention " compressor and manufacture method thereof, and the defroster of refrigerant loop, and refrigerating plant " the dividing an application of application for a patent for invention.
Technical field
The present invention relates to a kind of compressor of the compression unit that in container, is provided with electrodynamic element, drives by this electrodynamic element and manufacture method thereof, and the defroster of refrigerant loop, and refrigerating plant.
Background technology
In the rotary compressor of existing this rotary compressor, particularly bosom die mould multi-stage compression formula, refrigerant gas is drawn into the low-pressure chamber side of cylinder (first cylinder) from the suction inlet of first rotary compression element through cold-producing medium ingress pipe, suction path, press in the middle of being compacted into by the action with blade of rolling on the eccentric part that is entrenched in rotating shaft, from the hyperbaric chamber side of cylinder through outlet, discharge the anechoic chamber and be discharged in the closed container.And, the refrigerant gas of pressing in the middle of in this closed container is drawn into the low-pressure chamber side of cylinder (second cylinder) by the suction inlet from second rotary compression element, by on the eccentric part that is entrenched in rotating shaft roll and second level compression is carried out in the action of blade (ベ-Application), become the refrigerant gas of HTHP, from hyperbaric chamber side process exhaust outlet, drain passageway, discharge the anechoic chamber and be discharged to refrigerant loop from refrigerant discharge leader, inflow constitutes in the radiator of refrigerant loop with rotary compressor, after having dispelled the heat, by absorbing heat with evaporimeter after the expansion valve throttling, be inhaled into first rotary compression element, carry out above-mentioned circulation so repeatedly.
The eccentric part of above-mentioned rotating shaft is being set up with having 180 degree phase differences, is being connected by connecting portion between two eccentric parts.
In such rotary compressor, will the big cold-producing medium of height pressure reduction, for example as the carbon dioxide (CO of an example of carbonic acid gas 2) when being used as cold-producing medium, discharging refrigerant pressure reaches 12MPaG in becoming the second rotary compressor spare of high pressure, in addition, becomes 8MPaG (the middle pressure) in becoming first rotary compression element of rudimentary side.It becomes the pressure in the closed container.And the suction pressure of first rotary compression element is about 4MPaG.
Being installed in blade on such rotary compressor can be inserted in the groove that is set up along the radial direction of cylinder with moving freely along the radial direction of cylinder.And, be provided with spring eye (incorporating section) at the rear side (closed container side) of blade to the outer openings of cylinder, in this spring eye, inserting frequently blade to rolling the helical spring (spring member) that side is suppressed, the opening from the cylinder outside has inserted O type sealing ring to spring eye after, with stopper (preventing deviating from) obstruction and prevent that spring from flying out.
At this moment, because the off-centre of rolling rotation, plug is subjected to the power of the direction that is forced out laterally from spring eye.Particularly, in the rotary compressor of bosom die mould, owing to low pressure in the cylinder that becomes in the closed container than second rotary compression element, even because the inside and outside pressure differential of cylinder, stopper also becomes the state that is forced out.Therefore, in the prior art, be fixed on the cylinder by stopper being pressed into spring eye, but because this is pressed into, cylinder expands and is out of shape, and stop up between the supporting member (bearing) of opening surface of cylinder and produce the gap, thereby can not guarantee the sealing of cylinder interior, the problem that its performance is reduced is arranged.
In addition, in the rotary compressor of such bosom die mould multi-stage compression formula, because the pressure (high pressure) in the cylinder of second rotary compression element becomes pressure (the middle pressure) height in the closed container of oil storage portion than the bottom, utilize pressure differential in cylinder, to supply with its difficulty of oil pole from the oilhole of rotating shaft, become the state that only is lubricated, the problem of fuel delivery deficiency is arranged by the oil that dissolves in the suction cold-producing medium.
In addition, in the rotary compressor of such bosom die mould multi-stage compression formula, constitute the opening surface of the cylinder of second rotary compression element, in this supporting member, constitute above-mentioned discharge anechoic chamber simultaneously by supporting member sealing.The profile of in Figure 20, representing existing this supporting member 291.Forming the bearing 291A of rotating shaft in the central authorities of supporting member 291 with erecting, in this bearing 291A cushion cover 292 is being installed, discharging anechoic chamber 293 is hollowly to form on the supporting member 291 in the bearing 291A outside, and this discharges anechoic chamber 293 by cover 294 sealings.And this cover 294 is by not shown a plurality of being bolted on the supporting member 291.
At this, owing to become high high pressure in the closed container of pressing than the centre, the sealing of cover 294 becomes important problem in the discharge anechoic chamber 293 of the second rotation compression element.Therefore, adding packing ring 296 between cover 294 and supporting member 291, still, the bearing 291A side of central authorities is owing to away from bolt, in any case also variation of its sealing.Therefore, in the prior art, form with step on the base portion of 291A is forming sealing surface 291B, in sealing face 291B, also adding packing ring 296 ground and sealing, simultaneously C type back-up ring 297 is being installed in that bearing 291A goes up and the edge portion that will cover 294 bearing 291A side is pressed against supporting member 291 sides.
But, in so existing structure, discharge the volume of anechoic chamber owing to the formation sealing surface has dwindled, and need the installation of C type back-up ring, have the problem that processing cost and component costs uprise.
In addition, intensity about above-mentioned cover, when its thin thickness, be out of shape laterally owing to discharge the pressure differential in anechoic chamber and the closed container, generation gas leaks, conversely when thickness is blocked up, can not guarantee the insulation distance with electrodynamic element, and the problem that the compressor overall height dimension is enlarged.
In addition, the discharge pressure of second rotary compression element becomes high pressure in this wise, in the prior art since with each cylinder only by being that the bolt that middle heart is configured to concentric circles is connected on the supporting member with above-mentioned bearing with bearing, therefore, have from the danger of cylinder gas leakage.
In addition, when the above-mentioned pressure reduction of height like that when becoming big, be during with coaxial circular of this rotating shaft in the section configuration of the connecting portion of above-mentioned rotating shaft, the basal area that can guarantee is little physically, the easy strain of rotating shaft.Therefore, in the prior art, the section configuration of connecting portion formed with the wall thickness of the eccentric direction of two eccentric parts compare, wall thickness on the direction vertical with this eccentric direction becomes big rugby ball shape to seek to improve intensity, but, labor content when the machining rotating shaft is arranged increases, the problem of production efficiency variation.
In addition, in the compressor of such closed, in the obligated air seal test of carrying out closed container in the inspection of finishing of manufacturing engineering.This test pressure can be roughly about 4MPa in common compressor, still, and as previously mentioned with CO 2When using as cold-producing medium, because the pressure of closed container (pressing in the middle of under above-mentioned situation being) is high, the test pressure about the 10Mpa of the design higher limit of pressing in the middle of requiring to become.Therefore, be difficult to connect simply the compressed air that such test pressure is applied in the closed container and rise apparatus for converting and compressor.
In addition, in order to be drawn into the gas-liquid separation of the refrigerant gas in first rotary compression element, memory is installed in closed container.This memory is connected on the carriage on the side that is welded on closed container by welding or by band installations of etc.ing, and is being kept by the outside along closed container, when capacity that must the increase memory, can make the pipe arrangement generation interference of memory and cold-producing medium ingress pipe etc.
Therefore, in the prior art, as the measure that prevents the problems referred to above, change to such form that the shape of carriage self is left from pipe arrangement, change the holding position of memory and memory self is left from pipe arrangement, but the former situation, because carriage becomes when spraying paint of closed container etc. and draws extension portion on the suspension bracket that hangs over production equipment, must change the suspension bracket of the usefulness of spraying paint, in the latter case, since with central authorities' (or position of centre of gravity) of memory from the place keep, the vibration that has therefore produced memory self becomes big and makes the big problem of noise change.
In addition, will be discharged in the closed container in the middle of the refrigerant gas of pressing when being arranged in another cold-producing medium ingress pipe outside the closed container and being drawn into second rotary compression element, towards the cold-producing medium ingress pipe of first rotary compression element with go into pipe towards the cold-producing medium of second rotary compression element and be connected on the closed container in position adjacent.
Therefore, two interferences of two cold-producing medium ingress pipes have configuration to become the problem of difficulty.Particularly, owing on the cold-producing medium ingress pipe of first rotary compression element, connecting memory usually, therefore this accumulation of energy is configured in the top of the link position of each cold-producing medium ingress pipe, the interference that is easy to generate two cold-producing medium ingress pipes is also arranged and the problem of the position of the memory that is difficult to descend.
In addition, in such rotary compressor, be used for the binding post that electrodynamic element is powered is installed in the end cap of closed container.Figure 23 represents the profile of the rotary compressor binding post 299 parts part of such prior art.Binding post parts 299 are welded on end cap 298 top, and this end cap 298 is the asymmetric section configuration in relative center such shown in this figure.
At this, on end cap 298, be subjected to the influence of internal high pressure power and make with the welding portion of binding post parts 299 towards the direction distortion that bloats laterally.Result at the deflection of the end cap 298 of local other expression actual measurement of the upper zone of Figure 23.In the figure, the deflection in the zone of representing with Z4 is 0.2 μ m, and the distortion quantitative change in the zone of representing with Z5 is big, is 0.5 μ m, and the deflection maximum in the zone of representing with Z6 reaches 0.9 μ m.
Like this, because the deflection of binding post 299 parts becomes maximum, there is the welding portion of binding post parts 299 and end cap 298 to produce be full of cracks or weld the problem of peeling off and resistance to pressure being descended.
In addition, Figure 25 represents the profile of binding post parts 300 parts of another rotary compressor.Binding post parts 300 are made of the glass portion 302 of the circle that is provided with electric terminal 307 and metal installation portion 303 of being formed on around it, this installation portion 303 by be weldingly fixed on forms and closed container 304 on the circumference of installing hole 306.
At this, the thickness of the installation portion 303 of binding post 300 has served as when thin, holds high pressure intensity of force (withstand voltage properties) deficiency of the refrigerant gas in the anti-above-mentioned closed container 304, becomes the reason that produces faults such as be full of cracks on installation portion 303.In addition, when blocked up,,, the problem of the danger that produces the gas leakage or destroy is arranged because this heat produces damage to glass portion 302 easily owing to closed container 304 welding the time, need heat how.
In addition, the opening surface of the cylinder of such rotary compressor is sealing by constituting the supporting member of discharging the anechoic chamber in inside, still, is also constituting the bearing of the rotating shaft of electrodynamic element in these supporting member central authorities.And, even fuel feeding is insufficient also can to keep sliding capability and lining that the high PV value (load that applies on the per unit area) during for high load capacity has the graphite system of high abrasion resistance energy if be provided with between this bearing and rotating shaft, then can improve the durability of rotary compressor significantly, but, the lining costliness of such graphite has the high shortcoming of cost of parts.
In addition, above-mentioned cold-producing medium ingress pipe or refrigerant discharge leader are on the sleeve pipe cylindraceous that is connected on the flexure plane that is weldingly fixed on closed container, but in order to obtain sleeve pipe with respect to the perpendicularity of the internal diameter of closed container and used jig, therefore, assembling operation variation, verticality precision are also low.
In addition, what the cylinder of the rotary compression element of high pressure used is the cylinder of thin thickness, therefore, in the thickness of cylinder, can not form and suck path and drain passageway, therefore, form to suck path and drain passageway by the opening surface of closed cylinder in supporting member side, on cylinder, tiltedly be formed for making the above-mentioned suction inlet and the outlet that are communicated with in this suction path and drain passageway and the cylinder with bearing.
Figure 31 and Figure 32 represent the processing method in the past of this suction inlet and outlet.In each figure, the 311st, the cylinder of formation rotary compression element, the 312nd, be formed obliquely the suction inlet on this cylinder 311, the 313rd, outlet.When the suction inlet 312 that forms wherein, by make the smooth slotting cutter ML1 of front end relative to cylinder 311 tilt, promptly along on the inclined plane that is close to suction inlet 312 relative to the vertical direction in the inclined plane of suction inlet 312 and the incline direction of the suction inlet 312 shown in the arrow among Figure 31 move, and form the groove of relative cylinder 311 inclinations.
In addition, when forming outlet 313, by the relative cylinder 311 of slotting cutter ML1 is tilted, at this moment press and release the smooth slotting cutter ML1 of front end towards the vertical direction in the inclined plane of relative suction inlet 313, and form the breach that relative cylinder 311 tilts to the incline direction of the suction inlet shown in the arrow among Figure 32 313.
Like this, because the past is to form suction inlet 312 and outlet 313 on cylinder 311, therefore, the edge portion of the suction passage side of suction inlet 312 (the upper right edge of Figure 31) becomes linearity, sucking gas generation turbulent flow, there is passage resistance to become big problem with the connected component that sucks path.In addition because the relative cylinder 311 of slotting cutter ML1 is provided with obliquely, therefore, must carry out in addition with other bolt also or the identical boring of lightening hole process, increased workload, the problem that has production cost to uprise.
In addition, in the refrigerant loop of the two stages of compression formula rotary compressor that uses such bosom die mould, owing on evaporimeter, produce frost, therefore must defrost, but, for the defrosting of this evaporimeter will be can't help decompressor decompression ground when supplying to evaporimeter (though comprise the situation that directly supplies to evaporimeter and by decompressor but in its situation that it is not supplied with reducing pressure) from the high temperature refrigerant that second rotary compression element is discharged, the suction pressure of first rotary compression element rises, thus, the discharge pressure of first rotary compression element (the middle pressure) uprises.
Though this cold-producing medium is discharged from by second rotary compression element, but, owing to do not reduce pressure, the discharge pressure of second rotary compression element becomes identical with the suction pressure of first rotary compression element, therefore, there are the discharge (high pressure) of second rotary compression element and suction (the middle pressure) to produce the problem that pressure reverses phenomenon.
In addition, in the compression rotary compressor of the two poles of the earth of such bosom die mould, because the pressure (high pressure) in the cylinder of second rotary compression element becomes pressure (the middle pressure) height in the closed container of oil storage portion than the bottom, therefore the utmost point is not easy to utilize pressure differential to supply with oil from the oilhole of rotating shaft in cylinder, become the state that only oneself is lubricated, the fuel delivery deficiency by the oil that dissolves in cold-producing medium.
Summary of the invention
The present invention makes for the problem that solves prior art as described above, and its objective is provides a kind of rotary compressor that is used to prevent the fixing of stopper that spring member comes off and makes degradation that can prevent to be accompanied by.
Promptly, rotary compressor of the present invention is to be provided with electrodynamic element in closed container, constitute by the rotary compression element of this electrodynamic element driving, it is characterized in that, comprise and rolling, blade, spring member, the incorporating section of spring member, stopper, the O RunddichtringO, above-mentionedly roll on the eccentric part that is entrenched in the rotating shaft that is formed at the cylinder that is used to constitute rotary compression element and electronic key element and in cylinder, be rotated prejudicially, above-mentioned blade contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder with above-mentioned rolling, above-mentioned spring member is used for this blade is suppressed to rolling side frequently, above-mentioned spring member incorporating section is formed in the cylinder and to blade-side and closed container side opening, above-mentioned stopper is positioned at the closed container side of spring member and is inserted in the incorporating section with matched in clearance, above-mentioned O RunddichtringO is installed on the side face of stopper, is used to seal between this stopper and the incorporating section; Set the interval between cylinder and closed container littler than the distance of the end of closed container side from the O RunddichtringO to stopper.
In addition, rotary compressor of the present invention, in closed container, has electrodynamic element, first and second rotary compression elements by this electrodynamic element driving, by first rotary compression element compressed gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, it is characterized in that, comprise and rolling, blade, spring member, the incorporating section of spring member, stopper, the O RunddichtringO, above-mentionedly roll on the eccentric part that is entrenched in the rotating shaft that is formed at the cylinder that is used to constitute second rotary compression element and electronic key element and in cylinder, be rotated prejudicially, above-mentioned blade contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder with above-mentioned rolling, above-mentioned spring member is used for this blade is suppressed to rolling side frequently, above-mentioned spring member incorporating section is formed in the cylinder and to blade-side and closed container side opening, above-mentioned stopper is positioned at the closed container side of spring member and is inserted in the incorporating section with matched in clearance, above-mentioned O RunddichtringO is installed on the side face of stopper, is used to seal between this stopper and the incorporating section; Set the interval between cylinder and closed container littler than the distance of the end of closed container side from the O RunddichtringO to stopper.
According to the present invention, by in closed container, being provided with electrodynamic element, in the rotary compressor that constitutes by the rotary compression element of this electrodynamic element driving, owing to comprise and rolling, blade, spring member, the incorporating section of spring member, stopper, the O RunddichtringO, above-mentioned roll on the eccentric part that is entrenched in the rotating shaft that forms with cylinder that is used to constitute rotary compression element and electronic key element and in cylinder, being rotated prejudicially, above-mentioned blade contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder with above-mentioned rolling, above-mentioned spring member is used for this blade is suppressed to rolling side frequently, above-mentioned spring member incorporating section is formed in the cylinder and to blade-side and closed container side opening, above-mentioned stopper is positioned at the closed container side of spring member and is inserted in the incorporating section with matched in clearance, above-mentioned O RunddichtringO is installed on the side face of stopper, be used to seal between this stopper and the incorporating section, therefore, can possibly prevent from sealing to be reduced stopper being pressed into cylinder deformation when being fixed in the incorporating section, the unfavorable condition of degradation.
In addition, even because above-mentioned matched in clearance, set the interval between cylinder and closed container littler than the distance of the end of closed container side from the O RunddichtringO to stopper, therefore, move to the direction that is pushed out from the incorporating section at stopper, contact it with closed container and move the moment that is prevented from, the O RunddichtringO still is positioned at the incorporating section and is sealing, so the function of stopper can not produce any problem.
Be in the rotary compressor of middle multi-stage compression formula of pressing particularly, with CO in closed container inside 2Gas uses as cold-producing medium, press in the middle of in closed container being, when becoming extra-high voltage in second rotary compression element, for the performance of keeping compressor and prevent spring member deviate to have significant effect.
In addition, rotary compressor of the present invention is the rotary compression element that is provided with electrodynamic element in closed container, is driven by this electrodynamic element and constituting, and it is characterized in that, comprise roll, supporting member, blade, spring member, the incorporating section of spring member, stopper; Above-mentionedly roll on the eccentric part that is entrenched in the rotating shaft that is formed at the cylinder that is used to constitute rotary compression element and electronic key element and in cylinder, be rotated prejudicially; Above-mentioned supporting member, the opening surface of closed cylinder, and have the bearing of rotating shaft; Above-mentioned blade contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder with above-mentioned rolling; Above-mentioned spring member is used for this blade is suppressed to rolling side frequently; Above-mentioned stopper is positioned at the closed container side of spring member and is pressed into and is fixed on the incorporating section; On the supporting member of the part corresponding, forming the portion that dodges towards the direction depression of leaving from cylinder with this stopper.
In addition, rotary compressor of the present invention, first and second rotary compression elements that in closed container, have electrodynamic element, drive by this electrodynamic element, to be discharged in the closed container by the gas of first rotary compression element compression, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, it is characterized in that, comprise roll, blade, supporting member, spring member, the incorporating section of spring member, stopper; Above-mentionedly roll on the eccentric part that is entrenched in the rotating shaft that is formed at the cylinder that is used to constitute second rotary compression element and electronic key element and in cylinder, be rotated prejudicially, the opening surface of above-mentioned supporting member closed cylinder and have the bearing of rotating shaft; Above-mentioned blade contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder with above-mentioned rolling; Above-mentioned spring member is used for this blade is suppressed to rolling side frequently, and the incorporating section of above-mentioned spring member is formed in the cylinder, and to blade-side and closed container side opening; Above-mentioned stopper is positioned at the closed container side of spring member and is pressed into and is fixed on the incorporating section; On the supporting member of the part corresponding, forming the portion that dodges towards the direction depression of leaving from cylinder with this stopper.
According to invention, owing to the rotary compression element that is provided with electrodynamic element in closed container, driven by this electrodynamic element constitutes in the rotary compressor, comprise roll, supporting member, blade, spring member, the incorporating section of spring member, stopper; Above-mentionedly roll on the eccentric part that is entrenched in the rotating shaft that is formed at the cylinder that is used to constitute rotary compression element and electronic key element and in cylinder, be rotated prejudicially, the opening surface of above-mentioned supporting member closed cylinder and have the bearing of rotating shaft; Above-mentioned blade contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder with above-mentioned rolling, and above-mentioned spring member is used for this blade is suppressed to rolling side frequently; The incorporating section of above-mentioned spring member is formed in the cylinder, and to blade-side and closed container side opening; Above-mentioned stopper is positioned at the closed container side of spring member and is pressed into and is fixed on the incorporating section; On the supporting member of the part corresponding, forming the portion that dodges towards the direction depression of leaving from cylinder with this stopper, therefore, even because stopper is pressed into the incorporating section, cylinder is to the dilatancy of supporting member side, also can absorb the distortion of this cylinder by this portion of dodging, can avoid between cylinder and supporting member producing the bad phenomenon in gap, thus, can possibly avoid the reduction of the sealing brought owing to cylinder deformation to make the bad phenomenon of degradation.
Particularly in the rotary compressor of closed container bosom die mould multi-stage compression formula, with CO 2Gas uses as cold-producing medium, press in the middle of in closed container being, when becoming extra-high voltage in second rotary compression element, for the performance of keeping compressor and prevent spring member deviate to have significant effect.
In addition, the objective of the invention is in the rotary compressor of bosom die mould multi-stage compression formula to carry out smoothly and positively to becoming the partial second rotary compression element fuel feeding.
Promptly, rotary compressor of the present invention, in closed container, has electrodynamic element, first and second rotary compression elements by this electrodynamic element driving, to be discharged in the closed container by the gas of first rotary compression element compression, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, it is characterized in that, comprise the cylinder that is used for constituting respectively each rotary compression element, be folded in the intermediate section dividing plate that is used to separate each rotary compression element between each cylinder, the opening surface of inaccessible respectively each cylinder and have the supporting member of the bearing of rotating shaft, be formed on the oilhole in the rotating shaft; The fuel feeding road that will be used to be communicated with the suction side of this oilhole and second rotary compression element is formed in the intermediate section dividing plate.
According to the present invention, because first and second rotary compression elements that in closed container, have electrodynamic element, drive by this electrodynamic element, to be discharged in the closed container by the gas of first rotary compression element compression, the intermediate pressure gas body that again this is discharged from is by the compression of this second rotary compression element, comprise the cylinder that is used for constituting respectively each rotary compression element, be folded in be used between each cylinder to separate the intermediate section dividing plate of each rotary compression element, respectively seal the opening surface of each cylinder and have the bearing of rotating shaft supporting member, be formed on the oilhole in the rotating shaft; The fuel feeding road that will be used to be communicated with the suction side of this oilhole and second rotary compression element is formed in the intermediate section dividing plate, even under the high situation of the pressure in the closed container of pressing in the middle of the pressure ratio therefore in the cylinder of second rotary compression element becomes, also can utilize the suction crushing in the suction process of second rotary compression element positively to supply with oil from the fuel feeding road direction cylinder that is formed in the intermediate section dividing plate.
Thus, the lubricated of second rotary compression element can be positively carried out, the raising with reliability guaranteed of performance can be sought.
In addition, rotary compressor of the present invention, it is characterized in that, in above-mentioned, the through hole that wears the inner peripheral surface that is communicated with outer peripheral face and rotation shaft side on the intermediate section dividing plate constitutes the fuel feeding road, and the opening of the outer peripheral face side of sealing through hole is located in the cylinder that is used to constitute second rotary compression element with the intercommunicating pore that is communicated with this through hole and suction side.
According to the present invention, on the basis of the above, constitute the fuel feeding road owing on the intermediate section dividing plate, wear the through hole that is communicated with outer peripheral face and rotation shaft side inner peripheral surface, and the opening of the outer peripheral face side of sealing through hole, the intercommunicating pore that is communicated with this through hole and suction side is located in the cylinder that is used to constitute second rotary compression element, therefore, the processing transfiguration of intermediate section oiled-plate method that is used to constitute the fuel feeding road is easy, and production cost is reduced.
In addition, the objective of the invention is in the rotary compressor of bosom die mould multi-stage compression formula positively to be used for the sealing of cover of the discharge anechoic chamber of inaccessible second rotary compression element with simple structure.
That is, rotary compressor of the present invention has electrodynamic element, by first and second rotary compression elements that this electrodynamic element drives in closed container, will be by the CO of first rotary compression element compression 2Refrigerant gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, it is characterized in that, have the cylinder that is used to constitute second rotary compression element, inaccessible this cylinder opening surface and central portion have the bearing of the rotating shaft that erects supporting member, be formed on the discharge anechoic chamber that is communicated with cylinder interior on the supporting member in the bearing outside, periphery be fixed on the lid of the peristome that is used for inaccessible discharge anechoic chamber on the supporting member with bolt; Between this lid and supporting member, sandwich packing ring, and between interior all end faces that cover and bearing outside, be provided with the O RunddichtringO.
According to the present invention because in closed container, have electrodynamic element, by first and second rotary compression elements that electrodynamic element drives, will be by the CO of first rotary compression element compression 2Refrigerant gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, it is characterized in that, have the cylinder that is used to constitute second rotary compression element, the opening surface that seals this cylinder and central portion have the bearing of the rotating shaft that erects supporting member, be formed on the discharge anechoic chamber that is communicated with cylinder interior on the supporting member in the bearing outside, periphery be fixed on the lid of the peristome that is used for inaccessible discharge anechoic chamber on the supporting member with bolt; Between this lid and supporting member, sandwich packing ring, and between interior all end faces that cover and bearing outside, be provided with the O RunddichtringO, therefore, can on the bearing base portion, not form under the situation of sealing surface and seal fully by the interior all end faces in the lid, prevent from cover and supporting member between gas leakage.
Thus, the volume expansion of having sought the discharge anechoic chamber is unnecessary to be fixed on lid on the bearing by C type back-up ring as originally, therefore, also can realize the remarkable reduction of processing cost and cost of parts generally.
In addition, the objective of the invention is in the rotary compressor of bosom die mould multi-stage compression formula, is appropriate value with the thickness setting of the lid of the discharge anechoic chamber of inaccessible second rotary compression element.
That is, rotary compressor of the present invention has electrodynamic element, by first and second rotary compression elements that this electrodynamic element drives in closed container, will be by the CO of first rotary compression element compression 2Refrigerant gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, it is characterized in that, have the cylinder that is used to constitute second rotary compression element, inaccessible this cylinder opening surface and central portion have the bearing of the rotating shaft that erects supporting member, be formed on the discharge anechoic chamber that is communicated with cylinder interior on the supporting member in the bearing outside, be installed in the lid of the peristome that is used for inaccessible discharge anechoic chamber on the supporting member; The gauge of this lid is set at below the above 10mm of 2mm.
In addition, rotary compressor of the present invention is characterized in that, in above-mentioned, is 6mm with the thickness setting of this lid.
According to the present invention because in closed container, have electrodynamic element, by first and second rotary compression elements that this electrodynamic element drives, will be by the CO of first rotary compression element compression 2Refrigerant gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, it is characterized in that, have the cylinder that is used to constitute second rotary compression element, inaccessible this cylinder opening surface and central portion have the bearing of the rotating shaft that erects supporting member, be formed on the discharge anechoic chamber that is communicated with cylinder interior on the supporting member in the bearing outside, be installed in the lid of the peristome that is used for inaccessible discharge anechoic chamber on the supporting member; The gauge of this lid is set at below the above 10mm of 2mm, further be that the gauge that will cover is set at 6mm, therefore in the intensity of having guaranteed lid itself, in the gas leakage that prevents to produce by its distortion, can also guarantee and electrodynamic element between insulation distance, can realize the miniaturization of compressor.
In addition, rotary compressor of the present invention is characterized in that, in above-mentioned each invention, cover bolt is fixed on periphery on the supporting member, sandwiches packing ring between this lid and supporting member, and is provided with the O RunddichtringO between interior all end faces that cover and bearing outside.
According to the present invention, because on above-mentioned basis, cover bolt is fixed on periphery on the supporting member, between this lid and supporting member, sandwich packing ring, and between interior all end faces that cover and bearing outside, be provided with the O RunddichtringO, therefore, can on the bearing base portion, not form under the situation of sealing surface and seal fully by the interior all end faces in the lid, prevent from cover and supporting member between gas leakage.
Thus, necessity was fixed on lid on the bearing by C type back-up ring as originally owing to realized enlarging not by the volume of discharge anechoic chamber, therefore, also can realize the remarkable reduction of processing cost and cost of parts generally.
In addition, the objective of the invention is to prevent CO effectively 2The rotary compressor that uses as cold-producing medium from the cylinder gas leakage.
That is, rotary compressor of the present invention has electrodynamic element, by first and second rotary compression elements that this electrodynamic element drives in closed container, will be by the CO of first rotary compression element compression 2Refrigerant gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, it is characterized in that, comprise the cylinder that is used for constituting respectively each rotary compression element, the opening surface of inaccessible respectively each cylinder also has the supporting member of the bearing of rotating shaft in central authorities, be formed on the discharge anechoic chamber that is communicated with cylinder interior on each supporting member in the bearing outside, be installed in the inaccessible respectively lid of discharging the peristome of anechoic chamber that is used on each supporting member, by affixed each cylinder of a plurality of kingbolts, each supporting member and each lid, and by affixed each cylinder of auxiliary bolt and each supporting member that are positioned at the kingbolt outside.
According to the present invention because in closed container, have electrodynamic element, by first and second rotary compression elements that electrodynamic element drives, will be by the CO of first rotary compression element compression 2Refrigerant gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, it is characterized in that, comprise the cylinder that is used for constituting respectively each rotary compression element, the opening surface of inaccessible respectively each cylinder also has the supporting member of the bearing of rotating shaft in central authorities, be formed on the discharge anechoic chamber that is communicated with cylinder interior on each supporting member in the bearing outside, be installed in the inaccessible respectively lid of discharging the peristome of anechoic chamber that is used on each supporting member, by affixed each cylinder of a plurality of kingbolts, each supporting member and each lid, and by affixed each cylinder of auxiliary bolt and each supporting member that are positioned at the kingbolt outside, therefore can prevent to improve sealing from gas leakage such as between the cylinder of second rotary compression element that becomes high pressure and supporting member.
In addition, rotary compressor of the present invention, in above-mentioned, it is characterized in that, have roll, blade, guide channel, above-mentioned roll on the eccentric part that is entrenched on the rotating shaft that is formed at electrodynamic element and carry out off-centre and rotate in the cylinder that constitutes second rotary compression element, above-mentioned blade are rolled with this and are contacted and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder, and above-mentioned guide channel is formed on the cylinder, be used to take in blade; Auxiliary bolt is positioned near the guide channel.
According to the present invention, since have on the basis of the above roll, blade, guide channel, above-mentioned roll on the eccentric part that is entrenched on the rotating shaft that is formed at electrodynamic element and in the cylinder that constitutes second rotary compression element, carry out off-centre and rotate, above-mentioned blade rolls with this and contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder, and above-mentioned guide channel is formed on and is used to take in blade on the cylinder; Auxiliary bolt is positioned near the guide channel, therefore, can prevent that effectively the gas that is applied to the back pressure on the blade from leaking by auxiliary bolt.
In addition, the purpose of this invention is to provide a kind of rotary compressor of when the intensity of seeking rotating shaft improves, also seeking the improvement of processability.
I.e. Fa Ming rotary compressor, in closed container, has electrodynamic element, first and second rotary compression element by this electrodynamic element driving, compress the gas that compressed with first rotary compression element by second rotary compression element, it is characterized in that, having first and second rolls, this first and second roll and be embedded on first and second eccentric part, this first and second eccentric part is formed at with having 180 degree phase differences and is used to constitute first and second cylinder of first and second rotary compression element and the rotating shaft of electrodynamic element, the section configuration that connects the connecting portion of two eccentric parts is formed the big shape of wall thickness of comparing the direction vertical with the wall thickness of the eccentric direction of two eccentric parts with this eccentric direction, and the side of the eccentric direction side of first eccentric part of this connecting portion is formed and the concentric circular shape of second eccentric part, and the face of the eccentric direction side of second eccentric part forms and the concentric circular shape of first eccentric part.
According to the present invention, owing in closed container, have electrodynamic element, first and second rotary compression element by this electrodynamic element driving, compress the gas that compressed with first rotary compression element by second rotary compression element, having first and second rolls, this first and second roll and be entrenched on first and second eccentric part, this first and second eccentric part is formed at with having 180 degree phase differences and is used to constitute first and second cylinder of first and second rotary compression element and the rotating shaft of electrodynamic element, the section configuration that connects the connecting portion of two eccentric parts is formed the big shape of wall thickness of comparing the direction vertical with the wall thickness of the eccentric direction of two eccentric parts with this eccentric direction, therefore, improve the rigidity intensity of rotating shaft, can prevent its strain effectively.
Particularly, because the side of the eccentric direction side of first eccentric part of this connecting portion is formed and the concentric circular shape of second eccentric part, the face of the eccentric direction side of second eccentric part forms and the concentric circular shape of first eccentric part, therefore when machining has the rotating shaft of two eccentric parts and connecting portion, can reduce the number of times that changes clip position.Thus, can reduce manufacturing procedure, can realize the raising of production efficiency, and then can realize that cost reduces.
In addition, the purpose of this invention is to provide a kind of with CO 2As cold-producing medium compressor that use, that also can easily carry out the closed of airtight experiment when in closed container, becoming high pressure.
That is, closed-type compressor of the present invention, the compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, the CO that sucks from the cold-producing medium ingress pipe with the compression unit compression 2Cold-producing medium also is discharged in the closed container, be discharged to the outside from refrigerant discharge leader, it is characterized in that, have the sleeve pipe that connects cold-producing medium ingress pipe and refrigerant discharge leader respectively that is located in the closed container, on the external surface peripheral of this sleeve pipe, forming the flange part that is used for connecting the connector of usefulness in conjunction with pipe arrangement.
According to the present invention, because the compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, the CO that sucks from the cold-producing medium ingress pipe with the compression unit compression 2Cold-producing medium also is discharged in the closed container, be discharged to the outside closed-type compressor from refrigerant discharge leader, has the sleeve pipe that connects cold-producing medium ingress pipe and refrigerant discharge leader respectively that is located in the closed container, external surface peripheral at this sleeve pipe is forming the flange part that is used for connecting in conjunction with pipe arrangement the connector of usefulness, therefore, utilize this flange part will be located at connector on the pipe arrangement that comes from the compressed air generating apparatus simply in conjunction with being connected on the sleeve pipe of closed container.
Thus, can finish inside at short notice and be the air seal test in the manufacturing engineering of the compressor of the closed of high pressure.
In addition, closed-type compressor of the present invention, the compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, the CO that sucks from the cold-producing medium ingress pipe with the compression unit compression 2Cold-producing medium also is discharged in the closed container, be discharged to the outside from refrigerant discharge leader, it is characterized in that, have be located on the closed container, connect the sleeve pipe of cold-producing medium ingress pipe and refrigerant discharge leader respectively, forming the thread groove that pipe arrangement connects usefulness at the external surface peripheral of this sleeve pipe.
According to this invention, because the compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, the CO that sucks from the cold-producing medium ingress pipe with the compression unit compression 2Cold-producing medium also is discharged in the closed container, be discharged in the outside closed-type compressor by refrigerant discharge leader, has the sleeve pipe that connects cold-producing medium ingress pipe and refrigerant discharge leader respectively that is located on the closed container, external surface peripheral at this sleeve pipe is forming the thread groove that pipe arrangement connects usefulness, therefore utilizes this thread groove the pipe arrangement from the compressed air generating apparatus can be connected on the sleeve pipe of closed container simply.
Thus, can finish inside at short notice and be the air seal test in the manufacturing engineering of the compressor of the closed of high pressure.
In addition, closed-type compressor of the present invention, the compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, the CO that sucks from the cold-producing medium ingress pipe with the compression unit compression 2Cold-producing medium also is discharged in the closed container, be discharged to the outside from refrigerant discharge leader, it is characterized in that, have a plurality of sleeve pipes that connect cold-producing medium ingress pipe and refrigerant discharge leader respectively that are located in the closed container, external surface peripheral at an adjacent square casing is forming the flange part that is used for connecting in conjunction with pipe arrangement the connector of usefulness, and the external surface peripheral at the opposing party's sleeve pipe is forming the thread groove that pipe arrangement connects usefulness simultaneously.
According to the present invention, because first and second rotary compression element that in closed container, has electrodynamic element, drives by this electrodynamic element, the CO that sucks from the cold-producing medium ingress pipe with the compression unit compression 2Cold-producing medium also is discharged in the closed container, be discharged in the outside closed-type compressor by refrigerant discharge leader, have a plurality of sleeve pipes that connect cold-producing medium ingress pipe and refrigerant discharge leader respectively that are located in the closed container, external surface peripheral at an adjacent square casing is forming the flange part that is used for connecting in conjunction with pipe arrangement the connector of usefulness, external surface peripheral at the opposing party's sleeve pipe is forming the thread groove that pipe arrangement connects usefulness simultaneously, therefore utilize flange part to utilize this thread groove the pipe arrangement from the compressed air generating apparatus can be connected on the opposing party's sleeve pipe of closed container simply with the connector on the pipe arrangement that is located at from the compressed air generating apparatus simply in conjunction with being connected on the square casing of closed container.Can finish inside thus at short notice and be the air seal test in the manufacturing engineering of the compressor of the closed of high pressure.
Particularly owing on an adjacent square casing, forming flange part, on the opposing party's sleeve pipe, forming thread groove, therefore can not be adjacent to the bigger connector of size for connection mutually, can utilize a plurality of pipe arrangements of this narrow space connection when the interval between sleeve pipe is narrow yet from the compressed air generating apparatus.
In addition, the compressor that the purpose of this invention is to provide a kind of capacity change of the device of corresponding stored easily.
Promptly, compressor of the present invention, the compression unit that in container, has electrodynamic element, drives by this electrodynamic element, it is characterized in that, have vessel side carriage, memory on the container side of being located at, the memory side carriage of this memory is installed,, memory is installed on the container by two carriages by this memory side carriage is fixed on the vessel side carriage.
In addition, compressor of the present invention, in above-mentioned, base is characterised in that, the memory side carriage be installed in the central authorities of memory or position of centre of gravity or they near.
According to the present invention, because compressor has electrodynamic element, driven by this electrodynamic element in container compression unit, have vessel side carriage, memory on the container side of being located at, the memory side carriage of this memory is installed, by this memory side carriage is fixed on the vessel side carriage, by two carriages memory is installed on the container, therefore, when changing the capacity of memory, can not change the closed container lateral bracket, only need to change the memory side carriage and get final product, thereby can prevent interference with pipe arrangement.Therefore, also eliminated influence for the manufacturing equipment of compressor.
In addition, even when the capacity of memory changes, only need change memory side carriage, near the installation memory side carriage central authorities of memory or position of centre of gravity or them, can be near the central authorities of memory or position of centre of gravity or them this memory of maintenance, can prevent to vibrate the increase of the noise that causes.
In addition, the purpose of this invention is to provide a kind of first and second cold-producing medium ingress pipe phase mutually noninterfere, and can improve the compressor of space efficiency.
Compressor of the present invention, first and second compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, to this first compression unit imports the refrigerant pipe of cold-producing medium, the refrigerant gas of pressing in the middle of will be with this first compression unit compression import second compression unit refrigerant pipe, discharge the refrigerant pipe of the gases at high pressure that compress with second compression unit, it is characterized in that, the refrigerant pipe of first and second compression unit is connected with closed container in position adjacent, arranges in the opposite direction around this closed container from this closed container.
In addition, compressor of the present invention, in above-mentioned compressor, it is characterized in that, the refrigerant pipe of first compression unit is connected with closed container in the position of the downside of the refrigerant pipe of second compression unit, disposing memory above each refrigerant pipe and link position closed container, this memory is connected with the refrigerant pipe that cold-producing medium is imported first compression unit.
According to the present invention, because its compressor has electrodynamic element in closed container, first and second compression unit by this electrodynamic element driving, import the refrigerant pipe of cold-producing medium to this first compression unit, to import the refrigerant pipe of second compression unit with the refrigerant gas of pressing in the middle of this first compression unit compression, discharge will be with the refrigerant pipe of the gases at high pressure of second compression unit compression, the refrigerant pipe of first and second compression unit is connected with closed container in position adjacent, from this closed container unrolling in the opposite direction, therefore can in limited space, make each refrigerant pipe arrange each refrigerant pipe mutually uninterruptedly.
Particularly, refrigerant pipe at first compression unit is connected with closed container in the position of the downside of the refrigerator pipes of second compression unit, above each refrigerant pipe and link position closed container, disposing memory, when this memory is connected with the refrigerant pipe that cold-producing medium is imported first compression unit, can be when having avoided two refrigerant pipes to interfere mutually, descend to greatest extent by position and can make the refrigerant pipe of itself and second compression unit approaching, can improve space availability ratio significantly memory.
In addition, compressor of the present invention, in closed container, has electrodynamic element, first and second compression unit by this electrodynamic element driving, refrigerant pipe, be discharged in the closed container after this first cold-producing medium ingress pipe imports cold-producing medium with this first compression unit compression, the refrigerant gas of pressing in the middle of will discharging again sucks by the second outer cold-producing medium ingress pipe of the dried closed container in position, compress with second compression unit, it is characterized in that, first and second cold-producing medium ingress pipe is connected with closed container in position adjacent, from this closed container around this closed container towards mutually opposite direction setting.
In addition, compressor of the present invention, be in above-mentioned compressor, it is characterized in that, the first cold-producing medium ingress pipe is connected with closed container in the position of the second cold-producing medium ingress pipe downside, above each cold-producing medium ingress pipe and link position closed container, dispose memory, on this memory, connecting the first cold-producing medium ingress pipe.
According to the present invention, because in its compressor, in closed container, has electrodynamic element, first and second compression unit by this electrodynamic element driving, be discharged in the closed container behind the refrigerant gas of first cold-producing medium suction by the compression of first compression unit, the refrigerant gas of pressing in the middle of will discharging again sucks by being positioned at the second outer cold-producing medium ingress pipe of closed container, compress with second compression unit, first and second cold-producing medium ingress pipe is connected with closed container in position adjacent, arrange towards mutually opposite direction around this closed container from this closed container, therefore, can in limited space, make each refrigerant pipe not interfere ground to arrange each cold-producing medium ingress pipe mutually.
Particularly be connected with closed container in the position of the first cold-producing medium ingress pipe at the second cold-producing medium ingress pipe downside, above each cold-producing medium ingress pipe and link position closed container, disposing memory, when on this memory, connecting the first cold-producing medium ingress pipe, can be when having avoided two refrigerant pipes to interfere mutually, descend to greatest extent by position and can make the cold-producing medium ingress pipe of itself and second compression unit approaching, can improve space availability ratio significantly memory.
In addition, but the object of the invention provides the unfavorable condition that a kind of possible trouble prevents that the distortion by the end cap of closed container from producing.
Promptly, closed-type compressor of the present invention, the compression unit that in closed container, has electrodynamic element, drives by this voltage component, by in this compression unit compressed refrigerant and the closed container of discharging, it is characterized in that, have the binding post parts on the end cap that is installed in closed container, on the end cap around these binding post parts, forming the step of regulation curvature by punching press.
According to the present invention, because its closed-type compressor, the compression unit that in closed container, has electrodynamic element, drives by this voltage component, by in this compression unit compressed refrigerant and the closed container of discharging, have the binding post parts on the end cap that is installed in closed container, on the end cap around this joint, forming the step of regulation curvature by punching press, therefore, improved near the rigidity of the end cap the binding post parts, particularly with CO 2When compressing, under the situation that the closed container internal pressure uprises, the deflection of pressing the end cap that causes in the closed container can be reduced, resistance to pressure can be improved as cold-producing medium.
In addition, closed-type compressor of the present invention is in above-mentioned compressor, and it is roughly bowl-shape that above-mentioned end cap is, and the central shaft that step is with this end cap is the axisymmetric shape in center, and the binding post parts are installed in the center of this end cap.
According to the present invention, because in above-mentioned closed-type compressor, it is roughly bowl-shape that above-mentioned end cap is, the central shaft that step is with this end cap is the axisymmetric shape in center, and the binding post parts are installed in the center of this end cap, therefore even by the distortion of the end cap of pressing the binding post parts welding portion that causes in the closed container, can possibly avoid because the be full of cracks of the welding portion that inhomogeneous deformation produces or peel off can further improve resistance to pressure.
In addition, the invention provides the closed-type compressor of the unfavorable condition that a kind of binding post parts that can possibly avoid being used for to the electrodynamic element power supply partly produce.
That is, closed-type compressor of the present invention, the compression unit that in closed container, has electrodynamic element, drives by this voltage component, by this compression unit compression CO 2In the closed container of cold-producing medium and discharge, it is characterized in that, have the binding post parts on the end cap that is installed in closed container, these binding post parts have the glass portion of the circle that connects and be installed with electric terminal and be formed on this glass portion around the installing hole circumference that is weldingly fixed on closed container on flange shape metal system installation portion, the gauge of this installation portion is the scope of 2.4 ± 0.5mm.
In addition, closed-type compressor of the present invention, first and second rotary compression element that in closed container, has electrodynamic element, drives by this voltage component, will be by the CO of this first rotary compression element compression 2Refrigerant gas is discharged in the closed container, compress the middle refrigerant gas of pressing of this ejection again with second rotary compression element, it is characterized in that, have the binding post parts that are installed on the closed container, these binding post parts have the glass portion of the circle that connects and be installed with electric terminal and form this glass portion around the installing hole circumference that is weldingly fixed on closed container on flange shape metal system installation portion, the gauge of this installation portion is the scope of 2.4 ± 0.5mm.
According to the present invention, owing to have the joint on the closed container that is installed in closed-type compressor, this joint have the glass portion of the circle that connects and be installed with electric terminal and form this glass portion around the installing hole circumference that is weldingly fixed on closed container on flange shape metal system installation portion, the gauge of this installation portion is the scope of 2.4 ± 0.5mm.Therefore, the use CO that the pressure in closed container is high 2In the closed-type compressor of cold-producing medium, can in the withstand voltage properties of fully guaranteeing joint, can suppress to weld the increase of fixing needed heat.
Thus, can possibly prevent to destroy owing to the installation portion at joint produces be full of cracks or the generation damage causes on glass portion gas leakage or joint.
In addition, the raising that the purpose of this invention is to provide a kind of cost that will be caused by the carbon system lining that is located between bearing and the rotating shaft is suppressed to the rotary compressor of irreducible minimum.
Promptly, rotary compressor of the present invention is provided with electrodynamic element and is driven by electrodynamic element in closed container rotary compression element, it is characterized in that, have one or more cylinders, first supporting member and second supporting member, this cylinder constitutes rotary compression element, this first supporting member inaccessible cylinder and the opening surface electrodynamic element opposition side, the bearing that has the rotating shaft of electrodynamic element simultaneously, the opening surface of the electrodynamic element side of this second supporting member closed cylinder, and have the bearing of rotating shaft, be provided with in the bearing of a certain side in first and second supporting member and add the carbon system lining that is located between this bearing and the rotating shaft.
In addition, rotary compressor of the present invention is characterized in that, in above-mentioned, is provided with lining in the bearing of first supporting member.
In addition, rotary compressor of the present invention, first and second rotary compression element that in closed container, has electrodynamic element and drive by this electrodynamic element, to be discharged in the closed container by the gas of this first rotary compression element compression, compress the middle gas of pressing of this discharge again with this second rotary compression element, it is characterized in that, has first and second cylinder that is used for constituting respectively first and second rotary compression element, seal the opening surface of first cylinder and have first supporting member of the bearing of electrodynamic element rotating shaft, seal the opening surface of second cylinder and have second supporting member of the bearing of rotating shaft, be provided with the carbon system lining that is folded between this bearing and the rotating shaft in the bearing of a certain side in first and second supporting member.
In addition, rotary compressor of the present invention is characterized in that, in above-mentioned, is provided with lining in the bearing of second supporting member.
In addition, rotary compressor of the present invention is characterized in that, in above-mentioned, rotary compression element is with CO 2Gas compresses as cold-producing medium.
According to the present invention, because rotary compressor of the present invention is provided with electrodynamic element and is driven by electrodynamic element in closed container revolution compression unit, have one or more cylinders, first supporting member and second supporting member, this cylinder constitutes the revolution compression unit, this first supporting member inaccessible cylinder and the opening surface electrodynamic element opposition side, the bearing that has the rotating shaft of electrodynamic element simultaneously, the opening surface of the electrodynamic element side of the inaccessible cylinder of this second supporting member, and has a bearing of rotating shaft, therefore be provided with the carbon system lining that is folded between this bearing and the rotating shaft in the bearing of a certain side in first and second supporting member, compare the reduction of the cost that can realize part with the situation that in the bearing of both sides' supporting member, is respectively equipped with lining.
Particularly, if in the bearing of first supporting member, be provided with lining, in the bearing of the second big supporting member of the contact area of the electrodynamic element side of cylinder and rotating shaft, do not establish lining, then keep compression area little and be applied to the bearing of the first big supporting member of load on the unit are sliding capability, keep endurance quality in, by removing the lining that compression area is applied to greatly the bearing of the second less supporting member of duty ratio on the unit are, thereby can reduce cost.
In addition, according to the present invention, first and second rotary compression element that in closed container, has electrodynamic element and drive by this electrodynamic element, will be in closed container by the gas exhaust of this first rotary compression element compression, compressing the middle gas of pressing of this discharge with this second rotary compression element, it is characterized in that, has first and second cylinder that is used for constituting respectively first and second rotary compression element, the opening surface of inaccessible first cylinder also has first supporting member of the bearing of electrodynamic element rotating shaft, the opening surface of inaccessible second cylinder also has second supporting member of the bearing of rotating shaft, be provided with the carbon system lining that is folded between this bearing and the rotating shaft in the bearing of a certain side in first and second supporting member, therefore compare with the situation that packing ring is set in the bearing of both sides' supporting member respectively, can reduce the cost of part.
Particularly, if in the bearing of second supporting, be provided with lining, do not establish lining in the bearing of first supporting member of the opening surface of first cylinder below the pressure in obturation becomes closed container, then can keep inaccessible second cylinder higher than closed container internal pressure opening surface, carry out fuel feeding by pressure differential and become sliding capability in the bearing of second supporting member of difficulty, safeguard endurance quality, and, can eliminate the lining that carries out the bearing of the first no problem supporting member of fuel feeding by pressure differential, can reduce cost.
In addition, with CO 2Gas can have significant effect for the endurance quality of keeping compressor as becoming under the situation of extra-high voltage in cold-producing medium use, the closed container.
In addition, the object of the invention provides a kind of closed-type compressor of easily keeping the perpendicularity that is weldingly fixed on the sleeve pipe on the closed container.
Closed-type compressor of the present invention, the compression unit that in closed container, has electrodynamic element and drive by this electrodynamic element, discharge from the refrigerated medium discharge pipe behind the cold-producing medium of cold-producing medium ingress pipe suction by the compression unit compression, it is characterized in that, has sleeve pipe, this sleeve pipe is installed accordingly with the open-work on the flexure plane that is formed on closed container, and be used to connect cold-producing medium ingress pipe and refrigerant discharge leader, forming tabular surface on the closed container outside around open-work, and around on sleeve pipe, forming the insertion section that is used to insert in the open-work and being positioned at it and the contact site that contacts with the tabular surface of closed container, connect the contact site of affixed this sleeve pipe and the tabular surface of closed container by projection welding.
According to the present invention, the compression unit that in closed container, has electrodynamic element and drive by this electrodynamic element, discharge from the refrigerated medium discharge pipe behind the cold-producing medium of cold-producing medium ingress pipe suction by the compression unit compression, has sleeve pipe, this sleeve pipe is installed accordingly with the open-work on the flexure plane that is formed on closed container, and be used to connect cold-producing medium ingress pipe and refrigerant discharge leader, forming tabular surface on the closed container outside around open-work, and around on sleeve pipe, forming the insertion section that is used to insert in the open-work and being positioned at it and the contact site that contacts with the tabular surface of closed container, connect the contact site of affixed this sleeve pipe and the tabular surface of closed container by projection welding, by contacting of the contact site of the tabular surface of closed container and sleeve pipe, can guarantee the perpendicularity of the internal diameter of sleeve pipe and closed container, thus, do not using the perpendicularity that can form sleeve pipe under the situation of anchor clamps etc., can improve productivity and improve precision.
In addition, closed-type compressor of the present invention is characterized in that, in above-mentioned, tabular surface is hollowly being formed around open-work.
According to this invention because on the basis of the above, tabular surface is hollowly formed around open-work, therefore, by the outside of the sleeve pipe in the depressed part that is embedded in closed container and depressed part more precision keep the perpendicularity of sleeve pipe well.
In addition, the purpose of this invention is to provide and a kind ofly can reduce the passage resistance that sucks gas, carry out the rotary compressor and the manufacture method thereof of the processing of the suction inlet of cylinder and outlet easily.
Promptly, rotary compressor of the present invention is provided with electrodynamic element and is driven by this electrodynamic element in closed container rotary compression element, it is characterized in that, comprise and rolling, supporting member, suck path, suction inlet, this rolls and is formed on the chimeric and eccentric rotation in cylinder of the rotating shaft eccentric part of the cylinder that is used to constitute rotary compression element and electrodynamic element, the opening surface of the inaccessible cylinder of above-mentioned supporting member also has the bearing of rotating shaft, above-mentioned suction path is formed on the supporting member, above-mentioned suction inlet, be formed obliquely on cylinder, with be communicated with in the suction path of supporting member makes this suction path and cylinder accordingly, the edge portion of the suction passage side of this suction inlet forms the semicircle arcuation.
According to the present invention because the rotary compression element that in closed container, is provided with electrodynamic element and drives by this electrodynamic element, comprise roll, supporting member, suction path, suction inlet; This rolls and is formed on the chimeric and eccentric rotation in cylinder of the rotating shaft eccentric part of the cylinder that is used to constitute rotary compression element and electrodynamic element, the opening surface of the inaccessible cylinder of above-mentioned supporting member also has the bearing of rotating shaft, above-mentioned suction path is formed on the supporting member, above-mentioned suction inlet, be formed obliquely on cylinder, with be communicated with in the suction path of supporting member makes this suction path and cylinder accordingly, the edge portion of the suction passage side of this suction inlet forms the semicircle arcuation, therefore, can alleviate the passage resistance of suction inlet and the interconnecting part office that sucks path, can reduce the disorder of air-flow and realize high efficiency running.
In addition, manufacture method of the present invention is characterized in that, the rotary compression element that in being manufactured on closed container, is provided with electrodynamic element and drives by this electrodynamic element, comprise roll, supporting member, suction path, suction inlet; This rolls and is formed on the chimeric and eccentric rotation in cylinder of the rotating shaft eccentric part of the cylinder that is used to constitute rotary compression element and electrodynamic element, the opening surface of the inaccessible cylinder of above-mentioned supporting member also has the bearing of rotating shaft, above-mentioned suction path is formed on the supporting member, above-mentioned suction inlet is formed obliquely on cylinder, and during with the rotary compressor that is communicated with in the suction path of supporting member makes this suction path and cylinder accordingly, the slotting cutter and the cylinder of transverse plane vertically are close on cylinder before making, it is moved along the direction that tilts relative to cylinder, process suction inlet thus.
According to the present invention, owing to the slotting cutter of preceding transverse plane can be formed the suction inlet of inclination under the state vertical with cylinder on cylinder, therefore, can form suction inlet with screwed hole or the same operation of the boring processing of lightening hole etc., can realize reducing production costs of bringing by reducing operation quantity with other.In addition, by such processing, even the slotting cutter by preceding transverse plane also can make the edge portion of the suction side of air entry form the semicircle arcuation, therefore with similarly above-mentioned, can reduce the place mix of the connected component of air entry and suction path, can realize high efficiency running by the disorder that reduces air-flow.
In addition, manufacture method of the present invention is characterized in that, the rotary compression element that in being manufactured on closed container, is provided with electrodynamic element and drives by this electrodynamic element, comprise roll, supporting member, suction path, outlet; This rolls and is formed on the chimeric and eccentric rotation in cylinder of the rotating shaft eccentric part of the cylinder that is used to constitute rotary compression element and electrodynamic element, the opening surface of above-mentioned supporting member closed cylinder also has the bearing of rotating shaft, above-mentioned suction path is formed on the supporting member, above-mentioned outlet is formed obliquely on cylinder, and during with the rotary compressor that is communicated with in the suction path of supporting member makes this drain passageway and cylinder accordingly, vertically be close on cylinder the processing outlet by a part and cylinder with the slotting cutter of preceding end toper.
According to the present invention, owing to vertically be close at the outlet that can on its cylinder, form inclination on the cylinder by a part with the slotting cutter of preceding end toper, therefore, can use with other screwed hole or the same operation of the boring processing of lightening hole etc. and form suction inlet, can realize reducing production costs of bringing by reducing operation quantity.
In addition, the objective of the invention is to, in the refrigerant loop of the two stage compression type compressors that use the bosom die mould, the discharge in second compression unit that prevents to produce when evaporator defrost and the pressure of suction reverse.
Promptly, defroster of the present invention, it is characterized in that, the refrigerant loop of the cold-producing medium that comes out from evaporimeter with the compression of first compression unit, stream control device with cold-producing medium circulation of defrost circuit and this defrost circuit of control, this refrigerant loop has compressor, gas cooler, decompressor and evaporimeter, this compressor has electrodynamic element and driven by this electrodynamic element in closed container first and second compression unit, in the closed container that the first compression unit refrigerant compressed gas is discharged, compress the middle refrigerant gas of pressing of this discharge again with second compression unit, this gas cooler flows into the cold-producing medium of discharging from second compression unit of above-mentioned compressor, this decompressor is connected with the outlet side of this gas cooler, and this evaporimeter is connected with the outlet side of this decompressor.
In addition, the defroster of refrigerant loop of the present invention is characterized in that, in above-mentioned, each compression unit is with CO 2Gas compresses as cold-producing medium.
In addition, the defroster of refrigerating circuit of the present invention is characterized in that, generates hot water by the heat radiation from gas cooler.
According to the present invention, owing to compress with first compression unit the refrigerant loop of the cold-producing medium that comes out from evaporimeter, stream control device with cold-producing medium circulation of defrost circuit and this defrost circuit of control, this refrigerant loop has compressor, gas cooler, decompressor and evaporimeter, this compressor has electrodynamic element and driven by this electrodynamic element in closed container first and second compression unit, in the closed container that the first compression unit refrigerant compressed gas is discharged, compress the middle refrigerant gas of pressing of this discharge again with second compression unit, this gas cooler flows into the cold-producing medium of discharging from second compression unit of above-mentioned compressor, this decompressor is connected with the outlet side of this gas cooler, this evaporimeter is connected with the outlet side of this decompressor, therefore, when carrying out the defrosting of evaporimeter, can make the cold-producing medium of discharging flow to defrost circuit by the stream control device, under the state that does not reduce pressure, supply to evaporimeter and heat from first compression unit.
Thus, can prevent under the state that not only makes the high-pressure refrigerant decompression of discharging from second compression unit, to supply to the problem that the pressure of the discharge that produces the situation that evaporimeter defrosts second compression unit and suction reverses.
Particularly with CO 2In the refrigerant loop of gas as the cold-producing medium use, can produce significant especially effect.In addition, when generating hot water, can the heat of the hot water of gas cooler be transported to evaporimeter, can more promptly carry out the defrosting of evaporimeter by cold-producing medium with gas cooler.
The objective of the invention is in the rotary compressor of bosom die mould multi-stage compression formula, carry out the fuel feeding in the cylinder of second rotary compression element that becomes high pressure smoothly and positively.
Promptly, rotary compressor of the present invention, first and second rotary compression element that in closed container, has electrodynamic element and drive by this electrodynamic element, to be discharged in the closed container by the gas of the first revolution compression unit compression, the gas of pressing in the middle of again this being discharged from compresses with second rotary compression element, it is characterized in that, has first and second cylinder that is used for constituting respectively first and second revolution compression unit, be added in and separate the central dividing plate that respectively turns round compression unit between these cylinders, seal the opening surface of each cylinder respectively and have the supporting member of bearing of the rotating shaft of electrodynamic element, be formed on the oilhole in the rotating shaft, the oil supply tank that will be used to be communicated with the low-pressure chamber in this oilhole and second cylinder is formed on the face of second cylinder side of central dividing plate.
According to the present invention, because first and second rotary compression element that in closed container, has electrodynamic element and drive by this electrodynamic element, to be discharged in the closed container by the gas of the first revolution compression unit compression, the gas of pressing in the middle of again this being discharged from compresses with second rotary compression element, has first and second cylinder that is used for constituting respectively first and second rotary compression element, be added in the central dividing plate of separating each rotary compression element between these cylinders, seal the opening surface of each cylinder respectively and have the supporting member of bearing of the rotating shaft of electrodynamic element, be formed on the oilhole in the rotating shaft, the oil supply tank that will be used to be communicated with the low-pressure chamber in this oilhole and second cylinder is formed on the face of second cylinder side of central dividing plate, therefore, even high situation in the closed container of pressing in the middle of the pressure ratio of the cylinder of second rotary compression element becomes also can utilize the pressure of inspiration(Pi) loss in the breathing process of second rotary compression element positively to supply with oily in cylinder from the oil supply tank that is formed on the central dividing plate.
Thus, the lubricated of second rotary compression element can be positively carried out, the raising with reliability guaranteed of performance can be realized.Particularly can constitute oil supply tank, therefore, can make simple structureization, can suppress the raising of production cost owing to only carry out groove processing by face to second cylinder side of central dividing plate.
Description of drawings
Fig. 1 is the profilograph of rotary compressor of the present invention.
Fig. 2 is the front view of the rotary compressor of Fig. 1.
Fig. 3 is the side view of the rotary compressor of Fig. 1.
Fig. 4 is another profilograph of the rotary compressor of Fig. 1.
Fig. 5 is the another profilograph of the rotary compressor of Fig. 1.
Fig. 6 is the electrodynamic element top plan view partly of the rotary compressor of Fig. 1.
Fig. 7 is the amplification profile of rotary compressor structure portion of the rotary compressor of Fig. 1.
Fig. 8 is the expansion profile of blade-section of second compression unit of the rotary compressor of Fig. 1.
Fig. 9 is the lower support member of rotary compressor of Fig. 1 and the profile of lower cover.
Figure 10 is the upward view of lower support member of the rotary compressor of Fig. 1.
Figure 11 is the upper support member of rotary compressor of Fig. 1 and the top figure of upper cap.
Figure 12 is the upper support member of rotary compressor of Fig. 1 and the profile of upper cap.
Figure 13 is the top figure of central dividing plate of the rotary compressor of Fig. 1.
Figure 14 is the A-A profile of Figure 13.
Figure 15 is the top figure of upper cylinder of the rotary compressor of Fig. 1.
Figure 16 is the figure of pressure oscillation of suction side of upper cylinder of the rotary compressor of presentation graphs 1.
Figure 17 is the profile of shape of connecting portion of rotating shaft that is used for the rotary compressor of key diagram 1.
Figure 18 has been to use the refrigerant loop figure of hot-water supply of the rotary compressor of Fig. 1.
Figure 19 is other the amplification profile of embodiment of blade-section of second rotary compression element of the rotary compressor of Fig. 1.
Figure 20 is the supporting member of second rotary compression element of rotary compressor of prior art and the profile of cover.
Figure 21 is the profile of explanation state of connector and joint on the pipe arrangement that connects airtight experiment usefulness on the sleeve pipe of the rotary compressor of Fig. 1.
Figure 22 is the figure of relation of the deflection of the section of binding post part of rotary compressor of presentation graphs 1 and end cap.
Figure 23 is the figure of relation of the deflection of the section of binding post part of rotary compressor of expression prior art and end cap.
Figure 24 is the binding post amplification profile partly of the rotary compressor of Fig. 1.
Figure 25 is the amplification profile of the rotary compressor when the thin binding post of installation portion has been installed.
Figure 26 is the profilograph of the rotary compressor of another embodiment of the present invention.
Figure 27 is the profilograph of the rotary compressor of another embodiment of the present invention.
Figure 28 is the figure of erection sequence of sleeve pipe of the rotary compressor of key diagram 1.
Figure 29 is the figure of processing method of suction inlet of second rotary compression element of the rotary compressor of key diagram 1.
Figure 30 is the figure of processing method of outlet of second rotary compression element of the rotary compressor of key diagram 1.
Figure 31 be the explanation prior art the figure of processing method of suction inlet of second rotary compression element of rotary compressor.
Figure 32 be the identical prior art of explanation the figure of processing method of outlet of second rotary compression element of rotary compressor.
Figure 33 has been to use the refrigerant loop figure of the hot-water supply of another embodiment of the present invention.
Figure 34 has been to use the refrigerant loop figure of the hot-water supply of another embodiment of the present invention.
Figure 35 is the top figure of upper support member of the rotary compressor of additional embodiments of the present invention.
Figure 36 is the upper support member of Figure 35 and the profile of loam cake.
Figure 37 is other the profilograph of rotary compressor of embodiment of the present invention.
Figure 38 is another profilograph of the rotary compressor of Figure 37.
Figure 39 is the electrodynamic element top plan view partly of the rotary compressor of Figure 37.
Figure 40 is the profilograph of the rotary compressor of another embodiment of the present invention.
Figure 41 is the profile of central dividing plate of the rotary compressor of Figure 40.
Figure 42 is the vertical view of upper cylinder 38 of the rotary compressor of Figure 40.
Figure 43 is the figure of the pressure oscillation in the upper cylinder of rotary compressor of expression Figure 40.
Figure 44 is the figure of suction-compression travel of cold-producing medium of upper cylinder of the rotary compressor of explanation Figure 40.
Figure 45 is the key diagram that expression another refrigerating plant of the present invention constitutes.
Figure 46 is the key diagram of formation of the oil eliminator of the expression refrigerating plant that is used in Figure 45.
Figure 47 is the key diagram of formation of the compressor of the expression refrigerating plant that is used in Figure 45.
Figure 48 is the key diagram that is illustrated in the formation of the compressor that uses in the refrigerating plant of prior art.
The specific embodiment
Below, describe embodiments of the invention with reference to the accompanying drawings in detail.
In each figure, the 10th, with carbon dioxide (CO 2) rotary compressor (motor compressor of closed) of bosom die mould multistage (secondary) compression that uses as cold-producing medium, this rotary compressor 10 is by closed container 12 cylindraceous, electrodynamic element 14, rotary compressor structure portion 18 constitutes, this rotary compressor structure portion 18 is made of first rotary compression element 32 (first order) and second rotary compression element 34 (second level), this closed container 12 is made of steel plate, above-mentioned electrodynamic element 14 configurations are accommodated in the upside of the inner space of above-mentioned closed container 12, above-mentioned first compression unit 32 (first order) and second rotary compression element 34 (second level) are configured in the downside of above-mentioned electrodynamic element 14, and are driven by the rotating shaft 16 of electrodynamic element 14.The high-precision size of the rotary compressor 10 of embodiment is 220mm (external diameter 120mm), the height dimension of electrodynamic element 14 is 80mm (external diameter 110mm), the height dimension of rotary compressor structure portion 18 is about 70mm (external diameter 110mm), and electrodynamic element 14 is about 5mm with rotary compressor structure portion 18 at interval.In addition, the eliminating volume settings of second rotary compression element 34 must be littler than the eliminating volume of first rotary compression element 32.
In an embodiment, closed container 12 is that the steel plate of 4.5mm constitutes by thickness, with the bottom as oil storage portion, constitute by the vessel 12A cylindraceous that accommodates electrodynamic element 14 and rotary compressor structure portion 18 and roughly bowl-shape end cap (lid) 12B of the upper opening of this vessel of sealing 12A, and, be formed centrally circular installing hole 12D on this end cap 12B, the binding post parts (omission distribution) 20 that are used for to electrodynamic element 14 supply capabilities are being installed in this installing hole 12D.
At this moment, on the end cap 12B around the binding post parts 20, be the stage portion 12C that the axisymmetric shape at center is forming regulation curvature annularly with central shaft with this end cap 12B by drawing.In addition, binding post parts 20 by the glass portion 20A of the circle that electric terminal 139 penetratingly is installed shown in Figure 24 and be formed on this glass portion 20A around to oblique outer below stretch out flange shapely iron (the installation portion 20B formation of S25C～S45C), the central shaft that it also is with end cap 12B is the axisymmetric shape in center.The gauge of installation portion 20B is the scope (the above 2.9mm of 1.9mm is following) of 2.4 ± 0.5mm.And, binding post parts 20 insert installing hole 12D with this glass portion 20A and face with upside from downside, by under with the periphery state of contact of installation portion 20B and installing hole 12D, installation portion 20B being welded on the installing hole 12D periphery of end cap 12B, be fixed on the end cap 12B.
At this, pressure in the closed container 12 is set at middle pressure the described later, when making the thin thickness of installation portion 20B of binding post parts 20, following test effect is arranged in test, when thinner than 1.9mm, intensity (withstand voltage properties) deficiency of the high pressure of the refrigerant gas in the antagonism closed container 12 (the middle pressure) produces be full of cracks at installation portion 20B from one's body.In addition, when the thickness that makes installation portion 20B is thicker than 2.9mm, need a large amount of heats in the time of at this moment on being welded on closed container 304, might produce bad influence glass portion 20A.
In the present invention, in view of this, become 2.4 ± 0.5mm, can guarantee the withstand voltage properties of binding post parts 20 fully, and can suppress to weld the increase of fixing needed heat by thickness with the installation portion 20B of binding post parts 20.
In addition, end cap 12A is subjected to the influence of the high pressure (the middle pressure) in the closed container 12, and it is out of shape with the direction that the welding portion of binding post parts bloats toward the outer side.Result with the end cap 12A deflection of different region representation actual measurement Figure 22.In the figure, the deflection in the zone of representing with Z1 is 0.05 μ m, and the deflection in the zone of representing with Z2 is 0.2 μ m, and the deflection in the zone of representing with Z3 is 0.25 maximum μ m.This is the result who the rigidity of the end cap 12A the binding post parts 20 near is uprised owing to stage portion 12C, and it is compared with the deflection of the end cap of aforesaid prior art is minimum value.
In addition, binding post parts 20 in the center fixation of roughly bowl-shape end cap 12A, stage portion 12C also is formed on around it, and thus, it is the concentric circles at center that deflection itself is distributed as with binding post parts 20 equably.
Thus, in the present invention, with CO 2Gas compresses as cold-producing medium, under the situation that the pressure in the closed container 12 uprises, can reduce the deflection by the next end cap 12A of the interior pressure zone of closed container 12, can improve its resistance to pressure.In addition, can make distortion homogenising by the end cap 12A of the welding portion of the binding post parts 20 of cutting down output living in the closed container 12A, thereby can possibly avoid the be full of cracks of the welding portion that causes by inhomogeneous deformation and peel off, can further improve its resistance to pressure.
In addition, electrodynamic element 14 is made of stator 22 and rotor 24, and this stator 22 is mounted along the inner peripheral surface of the upper space of closed container 12 annularly, and this rotor 24 is provided with plurality of gaps ground and inserts the inboard that is configured in this stator 22.This rotor 24 is fixed on by the center along in the rotating shaft 16 of vertical extension.
Stator 22 has duplexer 26 and stator coil 28 (Fig. 6), and this duplexer 26 is formed by the electromagnetic steel plate of stacked ring-type, and this stator coil 28 installs around the tooth portion at this duplexer 26 by string around (concentrate around) mode.In addition, rotor 24 is also formed by the duplexer 30 of electromagnetic steel plate in the same manner with stator 22, inserts permanent magnet MG in this duplexer 30.
Central dividing plate 36 in clamping between above-mentioned first rotary compression element 32 and second rotary compression element 34.That is, first rotary compression element 32 and second rotary compression element 34 are by central dividing plate 36; Be configured in the less cylinder 38 (second cylinder) of the wall ratio of this central dividing plate about in the of 36, cylinder 40 (first cylinder); In the discharge chambe 38A of this upper and lower air cylinders 38,40 (Figure 15), 40A, be entrenched in have 180 degree phase differences ground be located at last eccentric part 42 (second eccentric part) in the rotating shaft 16, down eccentric part 44 (first eccentric part) and carry out that off-centre rotates on roll 46 (second rolls), roll 48 (first rolls) down; With this roll up and down 46,48 contact and will be divided into respectively in the upper and lower air cylinders 38,40 blade 50 (the downside blade is not shown) up and down described later of low-pressure chamber side and hyperbaric chamber side; The open lower side face of sealing upside opening surface of upper cylinder 38 and lower cylinder 40 and the upper support member 54 and the lower support member 56 of supporting member that is also used as the bearing of rotating shaft 16 constitute.
On upper cylinder 38, forming the suction inlet 161 that rises obliquely from the edge portion of above-mentioned discharge chambe 38A, be formed obliquely outlet 184 in the edge portion of discharge chambe 38A at the opposite side that clips blade 50 as illustrated in fig. 15 with this suction inlet 161.In addition, on lower cylinder 40, also forming the suction inlet 162 that rises sideling from the edge portion of compressor 40A, and, clipping the opposite side of above-mentioned blade with this suction inlet 162, the outlet (figure does not show) that forms sideling in the edge portion of discharge chambe 40A.
In addition, on upper support member 54, form suction path 58 and drain passageway 39 respectively, on lower support member 56, forming suction path 60 and drain passageway 41 respectively.At this moment, above-mentioned suction inlet 161,162 is corresponding with each suction path 58,60, and each sucks path 58,60 and is communicated with discharge chambe 38A, the 40A of cylinder 38,40 inside respectively by this suction inlet 161,162.In addition, above-mentioned outlet 184 and each drain passageway 39,41 corresponding (, not shown) for cylinder 40, by this outlet 184 respectively with being communicated with of discharge chambe 38A, the 40A of upper and lower air cylinders 38,40 inside.
On upper support member 54 and lower support member 56, also forming the discharge anechoic chamber 62,64 of depression, and this two peristome of discharging anechoic chamber 62,64 is inaccessible by lid respectively.That is, discharge anechoic chamber 62, discharge anechoic chamber 64 by lower cover 68 sealings as lid by upper cap 66 sealings as lid.
At this moment, erect in the central authorities of upper support member 54 and to form bearing 54A, the lining 122 of tubular is installed on the inner face of this bearing 54A.In addition, connect in the central authorities of lower support member 56 and to form bearing 56A, following (with the face of lower cylinder opposite side) of lower support member 56 forms tabular surface, and, the lining 123 of tubular also is installed on bearing 56A inner face.This lining 122,123 is made of the good material of sliding wearability described later, and rotating shaft 16 remains on the bearing 56A of the bearing 54A of upper support member 54 and lower support member 56 by these linings 122,123.
At this moment, lower cover 68 is made of the circular steel plate of annular, and by metal processing, punch process, machining etc. its installed surface to lower support member 56 being processed as flatness is below the 0.1mm.And, lower cover 68 is by the kingbolt 129 that with bearing 56A is middle heart concentric circles configuration ... be fixed on the lower support member 56 from following four positions, seal the lower aperture portion of the discharge anechoic chamber 64 that is communicated with the discharge chambe 40A of lower cylinder 40 inside of first rotary compression element 32 with drain passageway 41 its periphery.This kingbolt 129 ... the front end screw thread be combined on the upper support member 54.The inner peripheral of lower cover 68 is inwardly being given prominence to the side from the bearing 56A inner face of lower support member 56, and thus, the lower surface of lining 123 (with the end of the opposition side of lower cylinder 40) kept by lower cover 68, prevents that it from coming off.
Thus, need be in the anti-avulsion shape of the bottom shaping lining 123 of the bearing 56A of lower support member 56, thus make the simple shapeization of lower support member 56, can realize the reduction of production cost.In addition, Figure 10 represent lower support member 56 below, the 128th, the dump valve of first rotary compression element 32 of switching drain passageway 41 in discharging anechoic chamber 64.
At this, lower support member 56 is made of the burn-back material (also can be mo(u)lding) of iron system, the face of the side that lower cover 68 will be installed (below) be processed as flatness be below the 0.1mm after, apply steam treated.Make the face of the side that lower cover 68 is installed become iron oxide by this steam treated, so the hole of agglomerated material inside is blocked, thereby has improved its sealing.Thus, need between lower cover 68 and lower support member 56, not press from both sides and establish sealing gasket.
In addition, electrodynamic element 14 sides of discharging the upper cap 66 in anechoic chamber 64 and the closed container 12 are being communicated with (Fig. 4) by the intercommunicating pore 63 as the hole of perforation upper and lower air cylinders 38,40 and central dividing plate 36.At this moment, the upright centre discharge pipe 121 of establishing in the upper end of intercommunicating pore 63, this centre discharge pipe 121 points to the gap (Fig. 6) of 28,28 of adjacent stator coils, and this stator coil 28,28 installs around on the stator 22 of electrodynamic element 14 up.
In addition, upper cap 66 inaccessible top peristomes (peristomes of electrodynamic element 14 sides) of discharging anechoic chamber 62, this discharge anechoic chamber 62 is communicated with by the discharge chambe 38A of drain passageway 39 with upper cylinder 38 inside of second rotary compression element 34, will be divided in the closed container 12 and discharge anechoic chamber 62 and electrodynamic element 14 sides.This upper cap 66 its thickness as shown in figure 11 is the above 10mm of 2mm following (is 6mm preferably at present embodiment), constitute by the circular steel plate of roughly ring-type that is forming the hole that the bearing 54A that supplies above-mentioned upper support member 54 connects, and upper support member 54 between clip under the state of the packing ring 124 that has reinforcement by this packing ring 124 by 4 kingbolts 78 ... with its periphery from being fixed on the upper support member 54.This kingbolt 78 ... front end combining with lower support member 56 screw threads.
At this, with the thickness of upper cap 66 when experimentizing than 2mm is thin, produced because the danger that the interior pressure of discharge anechoic chamber 62 is out of shape.In addition, become when thicker than 10mm at gauge with upper cap 66, approaching above it with stator 22 (stator coil 8), become the result who jeopardizes insulation.In the present invention, by upper cap 66 being become aforesaid ranges of thicknesses size, can hold the pressure of anti-discharge anechoic chamber 62 than closed container 12 inner high voltages fully, the miniaturization of rotary compressor 10 own can be realized simultaneously, insulation distance can be guaranteed with electrodynamic element 14.In addition, between the outside of interior all end faces of this upper cap 66 and bearing 54A, be provided with O V-shaped ring 126 (Figure 12), by carrying out the sealing of bearing 54A side by this O V-shaped ring 126, can seal fully by interior all end faces of upper cap 66, prevent gas leakage, when having realized discharging the volume expansion of anechoic chamber 62, do not need as original, to be fixed on the bearing 54A by the medial margin portion of O V-shaped ring with upper cap 66 yet.At this, in Figure 11, the 127th, the dump valve of second rotary compression element 34 of switching drain passageway 39 in discharging anechoic chamber 62.
At this, the suction inlet 161 of above-mentioned upper cylinder 38 (lower cylinder 40 is also identical) and the processing method of outlet 184 are described with Figure 29 and Figure 30.When forming suction inlet 161, the slotting cutter ML1 that front end is smooth vertically is close to cylinder 38 as the arrow that hangs down among Figure 29, keeping the direction that the relative like that cylinder 38 of the arrow of oblique lower left tilts in Figure 29 under the state of this plumbness to make slotting cutter ML1 move to discharge chambe 38A, thus, on cylinder 38, form the groove of inclination.
In addition, when forming outlet 184, as shown in figure 30, half the relative cylinder 38 of the slotting cutter ML2 by end toper before making vertically press cylinder 38 discharge chambe 38A edge portion and on cylinder 38, form the breach of inclination.
By processing suction inlet 161 and outlet 184 in this wise, on cylinder 38, form the suction inlet 161 and the outlet 184 of inclination under can be again that the relative cylinder of slotting cutter ML1, ML2 38 is the vertical state, therefore can be in the operation identical with the boring processing of such other screw hole H1 (wearing the hole of kingbolt 78 grades) of Figure 15 and lightening hole H2 etc. formation suction inlet 161 and outlet 184, can reduce operation quantity, thereby can reduce production costs.
Particularly, when being suction inlet 161, because by such processing, also the edge portion of suction path 58 sides of suction inlet 161 can be formed the semicircle arcuation as illustrated in fig. 15 by the slotting cutter ML1 of preceding transverse plane, therefore, the edge portion such with the past is comparing of linearity, can alleviate the passage resistance of the connected component of suction inlet 161 and suction path 58, thereby the disorder that reduces air-flow can realize high efficiency running.
Below, in the central dividing plate 36A of the opening surface of the upside of the open lower side face of inaccessible upper cylinder 38 and lower cylinder 40, in the position corresponding such as Figure 13, shown in Figure 14 from the outer peripheral face to the inner peripheral surface, wear the through hole 131 that is communicated with outer peripheral face and inner peripheral surface and constitutes the fuel feeding road by pore processing with the suction side in the upper cylinder 38, the opening 13,14 of plugging material (blocking pin) the 132 obstruction outer peripheral face sides of the outer peripheral face side by being pressed into this perforations road 131.In addition, the middle part at this through hole 131 is wearing the intercommunicating pore (vertical hole) 133 that extends to upside.
In addition, wearing the intercommunicating pore 134 of the injection usefulness that is communicated with the intercommunicating pore 133 of central dividing plate 36 at the suction inlet 161 (suction side) of upper cylinder 38.And, in rotating shaft 16, as shown in Figure 7, be formed centrally the oilhole 80 of vertical and the horizontal oil supplying hole 82,84 that is communicated with this oilhole 80 (on the eccentric part up and down 42,44 of rotating shaft 16, also forming) in the axle of edge.The perforate of the inner peripheral surface side of the through hole 131 of central dividing plate 36 is being communicated with oilhole 80 by these oil supplying holes 82,84.
Owing to be middle the pressure as described later in the closed container 12, supply oily in place, the second level becomes the upper cylinder 38 of high pressure becomes difficulty, but by central dividing plate 36 is formed such structure, suct and enter central dividing plate 36 through holes 131 from the store oil portion of closed container 12 inner bottom parts, supply to the suction side (suction inlet 161) of upper cylinder 38 from intercommunicating pore 133,134 along oilhole 80 oil that comes out from oil supplying hole 82,84 that rises.
Among Figure 16, L represents the pressure oscillation of the suction side in the upper cylinder 38, P1 among the figure represents the pressure in the central dividing plate 36, shown in the L1 of this figure, the suction side pressure of upper cylinder 38 (suction pressure), in suction process because suction pressure loss and lower than the pressure of the inner peripheral surface side of central dividing plate 36.In the meantime, from the oilhole 80 of rotating shaft 16 through the through hole 131 of central dividing plates 36, intercommunicating pore 133 and from the intercommunicating pore 134 of upper cylinder 38 with oil spurts in upper cylinder 38, finish fuel feeding.
As mentioned above, upper and lower air cylinders 38,40, central dividing plate 36, supporting member 54,56 and upper and lower covers 66,68 be respectively by 4 bolts 78 up and down ... with kingbolt 129 ... from affixed up and down, and upper and lower air cylinders 38,40, central dividing plate 36, supporting member 54,56 is also by the auxiliary bolt 136,136 affixed (Fig. 4) that is positioned at these kingbolt 78,129 outsides up and down.These auxiliary bolts 136,136 insert from upper support member 54 sides, on the lower support member 56 of its front end screw thread combination.
In addition, this auxiliary bolt 136 be positioned at above-mentioned blade 50 guide channel described later 70 near, make rotary compressor structure portion 18 integrated by appending this auxiliary bolt 136, Tightening moment increases, prevent from gas leakage such as to reach between the upper cylinder 38 of second rotary compression element 34 of 12MPaG and the upper support member 54, can realize inside is become the sealing of the parts of extra-high voltage from discharge pressure.In addition and since the guide channel 70 of auxiliary bolt 136 fastening blades 50 near, can prevent also that therefore back pressure (high pressure) gas that is added on the blade 50 as described later from leaking (from leakage between upper support member 54 and the upper cylinder 38).
In addition, the outside that is forming the guide channel 70 of taking in above-mentioned blade 50 and be positioned at this guide channel in upper cylinder 38 is used to take in the incorporating section 70A as the spring 76 of spring member, and this incorporating section 70A is at guide channel 70 sides and closed container 12 (vessel 12A) side opening (Fig. 8).Above-mentioned spring 76 contacts with the outboard end of blade 50, frequently blade 50 is suppressed to rolling 46 sides.And, in the incorporating section 70A of closed container 12 sides of this spring 76, be provided with metal stopper 137, play the anticreep effect of spring 76.Back pressure chamber not shown in the figures is being communicated with guide channel 70, because the discharge pressure (high pressure) of second rotary compression element 34 is added on the blade 50, therefore, spring 76 sides of stopper 137 become high pressure, presses in the middle of closed container 12 sides become.
At this moment, the outside dimension of stopper 137 is littler than the inside dimension of incorporating section 70A, be inserted in the receiving room 70A to stopper 137 matched in clearance, in addition, at the O type sealing ring 138 that is installed with on the side face of stopper 137 between the inner face that is used to seal this stopper 137 and incorporating section 70A.And, the outer end of upper cylinder 38, be that interval between the vessel 12A of the outer end of incorporating section 70A and closed container 12 is littler than the distance of the end of closed container 12 sides from O type sealing ring 138 to stopper 137.And, with not shown back pressure chamber that the guide channel 70 of blade 50 is communicated with in apply second rotary compression element as back pressure discharge pressure be high pressure.Therefore spring 76 sides of stopper 137 become high pressure, press in the middle of closed container 12 sides become.
By constituting such size relationship, can possibly prevent as stopper 137 is pressed into situation about being fixed in the 70A of incorporating section, upper cylinder 38 distortion, and upper support member 54 between the sealing step-down and bring the problem of mis-behave etc.In addition, even such matched in clearance, owing to the interval of 12 of upper cylinder 38 and closed containers is set at littler than the distance of the end of closed container 12 sides from O type sealing ring 138 to stopper 137, therefore, owing to the high pressure (back pressure of blade 50) of spring 76 sides makes stopper 137 move to the direction that is pushed out from incorporating section 70A, the moment that stops it to move contacting with closed container 12, O type sealing ring 138 also still is positioned at incorporating section 70A and seals, therefore, stopper 138 functions can not produce any problem.
Connection is formed on the mutual connecting portion 90 of eccentric part up and down 42,44 on the rotating shaft 16 with the phase differences of 180 degree and has rigidity for its shape of cross section is made greatly than the cross-sectional area of the circular cross section of rotating shaft 16, therefore form it into the so-called rugby ball shape of non-circular shape as shown in figure 17, form the big shape (the hatching part among the figure) of wall thickness that side's wall ratio vertical with the eccentric direction of eccentric part 42,44 up and down is located at the eccentric direction of the eccentric part up and down 42,44 in the rotating shaft 16.
Thus, increased and connect the cross-sectional area that is located at 42,44 connecting portions 90 of eccentric part up and down in the rotating shaft 16 integratedly, second moment of area increases, and intensity (rigidity) increases, and has improved the durability and the reliability of rotating shaft 16.Particularly as embodiment during the high cold-producing medium of two stages of compression working pressure, because the pressure differential of high-low pressure is big, the load that is applied in the rotating shaft 16 also becomes greatly, but increases its intensity (rigidity) by the cross-sectional area that increases connecting portion 90, therefore can prevent rotating shaft 16 strains.
In addition, under situation of the present invention, be made as at center the eccentric part 42 of upside O1, with the radius of this eccentric part be made as R1, with the center of the eccentric part 44 of downside be made as O2, when the radius of this eccentric part 44 is made as R3, the face (face in the left side of the shadow part of Figure 17) of the connecting portion 90 of the eccentric direction side of the eccentric part of upside (first eccentric part) 42 becomes the circular shape of its center as O2, and the face of the connecting portion 90 of the eccentric direction side of eccentric part 44 (face on the right side of the shadow part of Figure 17) becomes the circular shape of its center as O1.
In addition, when the arc radius of the face of the connecting portion 90 of the eccentric direction side of the eccentric part 42 of upside is made as R4, this radius R 4 can maximum extension to the radius R 3 of the eccentric part 44 of downside, when the arc radius of the face of the connecting portion 90 of the eccentric direction side of the eccentric part 44 of downside is made as R2, this radius R 2 can maximum extension to the radius R 1 of the eccentric part 42 of upside.
Like this, be set at O2 by center of arc with the face of the connecting portion 90 of the eccentric direction side of the inclined to one side portion 42 of upside, the center of arc of the face of the connecting portion 90 of the eccentric direction side of the eccentric part 44 of downside is set at O2, the eccentric part up and down 42 of machining rotating shaft 16 on machining machinery that rotating shaft 16 is installed, 44 when the connecting portion 90, after having processed eccentric part 42, only change radius or do not change the face (face on the right side of Figure 17) of eccentric direction side of the eccentric part 44 of radius ground processing connecting portion 90, then change the position that is installed, the face (face in the left side of Figure 17) of the eccentric direction side of the eccentric part 42 of processing connecting portion 90 only changes radius or does not change the eccentric part 44 that radius ground processes connecting portion 90.Thus, reduce the number of times of the rotating shaft 16 that is installed again, reduced manufacturing procedure, improved productivity ratio significantly.
And, as at this moment cold-producing medium considered that the earth environment influence is little, back uses such as combustibility and toxicity be above-mentioned carbon dioxide (CO as an example of the carbonic acid gas of natural cold-producing medium 2), as the lubricating oil use is for example to be the existing oil of mineral oil, alkyl phenyl ring oil, ether oil, ester oil etc.
In addition, on the face of the bending of the vessel 12A of closed container 12, with the suction path 58,60 of upper support member 54 and lower support member 56, discharge to weld respectively on the relative position of the upside (position roughly corresponding) of anechoic chamber 62 and upper cap 66 and fixing sleeve pipe 141,142,143 and 144 cylindraceous with the lower end of electrodynamic element 14. Sleeve pipe 141 and 142 is neighbouring, and sleeve pipe 143 is on the roughly diagonal of sleeve pipe 141.Sleeve pipe 144 is positioned at sleeve pipe 141 and staggers roughly on the positions of 90 degree.
At this, the installation constitution of above-mentioned sleeve pipe 141～144 (representing sleeve pipe 142 in the drawings) is described with Figure 28.On the flexure plane of the vessel 12A of closed container 12, on the position of mounting sleeve 141～144, forming circular open-work 190 (at this moment being 4 positions) respectively, and, counterbit is being processed to form circular depressed part 192 around the exterior side of the vessel 12A of each open-work 190, in the bottom surface of this depressed part 192 be open-work 190 around forming the parallel tabular surface 193 of tangent line with the internal diameter of the vessel 12A of closed container 12.
In addition, on the end of closed container 12 sides of sleeve pipe 142 (other sleeve pipe is also identical), forming the insertion section 194 littler than external diameter diameter, around this insertion section 194, forming the axial vertical smooth abutting part 196 with sleeve pipe 142, also forming the projection 197 that projection welding is used on every side highlightedly at this abutting part 196.
In Figure 28, for convenience of explanation, represent projection 197 enlargedly, but be actually minimum outstanding size.In addition, the internal diameter of above-mentioned depressed part 192 is to have the size that minimum clearance ground can insert sleeve pipe 142, and the external diameter of insertion section 194 also is the size that can insert in the open-work 190 with having minimum clearance.
And, when being fixed on sleeve pipe 142 on the vessel 12A, the insertion section 194 of sleeve pipe 142 is inserted in the open-work 190 of vessel 12A, again abutting part 196 parts of sleeve pipe 142 are imbedded in the depressed part 192, so tabular surface 193 butts at the end of abutting part 196 of sleeve pipe 142 (being actually projection 197) and depressed part 192.At this moment, tabular surface 193 is parallel with the tangent line of the internal diameter of vessel 12A, and abutting part 196 and sleeve pipe 142 is axial vertical, therefore, in the moment that abutting part 196 has contacted with tabular surface 193, the internal diameter of sleeve pipe 142 relative vessel 12A becomes right angle (be arranged in from the mind-set radial direction of vessel 12A and extend and outstanding from the outside state).Particularly, therefore, can easily guarantee the perpendicularity of sleeve pipe 142 because the outside on every side of the abutting part 196 of lining 142 forms the form on the inner face that remains on depressed part 192.
Under this state, by not shown soldering appliance weld above-mentioned protruding 197 and with sleeve pipe 142 projection weldings on vessel 12A.By constituting in this wise, can under the situation of not using anchor clamps, correctly keep the perpendicularity of sleeve pipe 142 (141,143,144 is also identical) with respect to vessel 12A internal diameter.
And, in the sleeve pipe of installing in this wise 141, insert the cold-producing medium ingress pipe 92 (refrigerant pipes that connection is used to import refrigerant gas.The second cold-producing medium ingress pipe.) an end, an end of this cold-producing medium ingress pipe 92 is communicated with the suction path 58 of upper cylinder 38.(therefore, cold-producing medium ingress pipe 92 is positioned at outside the closed container 12 upside of this cold-producing medium ingress pipe 92 by closed container 12.) and arrive sleeve pipe 144, its other end insert be connected in the sleeve pipe 144 and with closed container 12 in are communicated with.
In addition, insertion is connecting the cold-producing medium ingress pipe 94 (refrigerant pipes that are used for importing to lower cylinder 40 refrigerant gas in sleeve pipe 142.The first cold-producing medium ingress pipe.) an end, an end of this cold-producing medium ingress pipe 94 is being communicated with the suction path 60 of lower cylinder 40.Insertion is connecting refrigerant discharge leader 96 in sleeve pipe 143 in addition, and an end of this refrigerant discharge leader 96 is communicated with discharge anechoic chamber 62.
Above-mentioned memory 146 is to suck the jar that refrigerant air-liquid separates, and the carriage 148 by memory side on the carriage 147 of the closed container side on the upper side of the vessel 12A that is welded on closed container 12 is being mounted.Be positioned at the top of sleeve pipe 141 and 142.These carriage 148 its both sides, bottom are fixed on the carriage 147 by bolt 181, extend upward from this carriage 147, use by both sides, bolt 183 end mounted thereto with the 182 substantial middle portions that keep the above-below direction of memories 146.At this moment, memory 146 also can be by being weldingly fixed on the carriage 148.Under its state, memory 146 is being configured with the side form along closed container 12.
Like this, memory 146 is installed on the body 12A of closed container 12 by carriage 147 and carriage 148, therefore, capacity at memory 146 is extended, when size has also become greatly about it, just can under the state of the substantial middle that is keeping memory 146, its lower end position be lifted in following size up and down that enlarges (change) carriage 148 of the situation that does not change carriage 147.Thus, be difficult to interfere with its below cold-producing medium ingress pipe 92.
In addition, carriage 147 be when closed container 12 sprays paint, become the suspender of hanging manufacturing equipment draw extension portion, but, do not need the change of this suspender by making such formation yet.And, when the capacity change that has produced memory 146, also can only change carriage 148 as described above and carriage 148 is installed near its substantial middle (or basic position of centre of gravity or its), can keep memory 146 in its position, can prevent the noise increase that causes by vibration.
In addition, as shown in Figure 3, cold-producing medium ingress pipe 92 rises to right-hand crooked back after coming out from lining 141 in the present embodiment, and the lower end of memory 146 drops to the position approaching with this cold-producing medium ingress pipe 92.Therefore, the cold-producing medium ingress pipe 94 that descends from the lower end of memory 146 is bent into from sleeve pipe 141 and sees at and arrival sleeve pipe 142 circuitous with the crooked opposite left side of cold-producing medium ingress pipe 92.
Promptly the cold-producing medium ingress pipe 92,94 that is communicated with the suction path 58,60 of upper support member 38 and lower support member 40 respectively from closed container 12 see with on horizontal plane in the opposite direction (the different direction of 180 degree) crooked mode be provided with, thus, enlarged the size up and down of memory 146 and increased volume or by the decline installation site with its lower end near cold-producing medium ingress pipe 92, also can make each cold-producing medium ingress pipe 92,94 phase mutually noninterfere.
Around the outside of sleeve pipe 141,143,144, form flange part 151, around the outside of lining 142, forming thread groove 152.And, but on this flange part 151, engaging to clutch the joint portion 172 that pipe arrangement connects the joint 171 of usefulness as shown in figure 21, but screw thread is being fixed the joint 173 that pipe arrangement connects usefulness on thread groove 152.
In addition, the direction pressurized that the joint portion 172 of pipe joint 171 is escaped frequently toward the outer side in its arranged outside and to be had flexible operating portion 177.And, the mode by overlapping casing tube 141 push pipe joint 171 make joint portion 172 push open operating portion 177 fall back on outside the rear flank, combine with the vessel 12A side of flange part 151.In addition, move to the direction of leaving from vessel 12A by making operating portion 177, joint portion 172 falls back on the outside, and pipe joint 171 is unloaded from lining 141.
Aforementioned tube joint 171 is installed in the front end from the pipe arrangement 174 of compressed air generating apparatus not shown in the figures, and joint 173 is installed in the front end from the pipe arrangement 176 of compressed air generating apparatus similarly.And in the manufacturing process of rotary compressor 10, finish when checking, above-mentioned pipe joint 171 is connected with sleeve pipe 141,143,144 combinations respectively, screws in and jointing 173 on sleeve pipe 142.And, be added to from the above-mentioned compressed air generating apparatus compressed air that 10MPa is such and carry out air seal test in the closed container 12.
By making such structure,, therefore can finish air seal test at short notice owing to pipe arrangement 174, the 176 usefulness pipe joints 171 from the compressed air generating apparatus can be connected simply with joint 173.Particularly neighbouring sleeve pipe 141 and 142 is by forming flange part 151 on a square casing 141, on the opposing party's lining 142, form thread groove 152, can not become two is adjacent to install and compares with joint 173, the situation of the pipe joint 171 that size is big is even also can utilize narrow space that pipe arrangement 174,176 is connected on each sleeve pipe 141,142 at the interval of sleeve pipe 141 and 142 when narrow.
Figure 18 is the refrigerant loop figure that the hot-water supply 153 of embodiments of the invention is used in expression.The rotary compressor 10 of embodiment is used in the refrigerant loop of hot-water supply shown in Figure 180 153.The refrigerant discharge leader 96 that is rotary compressor 10 is connected with the inlet of the gas cooler 154 of water heating usefulness.This gas cooler 154 is located on the thermal storage water tank not shown in the figures of hot-water supply 153.The pipe arrangement that comes out from gas cooler 154 passes through the inlet that arrives evaporimeters 157 as the expansion valve 156 of decompressor, and the outlet of evaporimeter 157 is connected with cold-producing medium ingress pipe 94.In addition, white pipe 158 (not shown among Fig. 2, Fig. 3) that go from the middle part branch of cold-producing medium ingress pipe 94 constitutes defrost circuit are connected with the refrigerant discharge leader 96 that arrives the inlet of gas coolers 154 by the magnetic valve 159 as the stream control device.In addition, in Figure 18, omitted holder 146.
The below action in the above formation of explanation.In adding heat run, magnetic valve 159 is cutting out, when by binding post parts 20 and not shown distribution during to stator coil 28 energisings of electrodynamic element 14, and electrodynamic element 14 startings, rotor 24 rotations.Make to be entrenched in by this rotation and roll 46,48 eccentric rotations in upper and lower air cylinders 38,40 up and down on the eccentric part up and down 42,44 that is provided with integratedly with rotating shaft 16.
So, through cold-producing medium ingress pipe 94 and be formed on suction path 60 on the lower support member 56 be inhaled into from suction inlet 162 the low-pressure chamber side of lower cylinder 40 low pressure (first order suction pressure LP:4MPaG) refrigerant gas by roll 48 and the action of blade be compressed and press (MP1:8MPaG) in the middle of becoming, be discharged in the closed container 12 from middle discharge pipe 121 by access 63 from the discharge anechoic chamber 64 that is formed on the lower support member 56 through outlet, drain passageway 41 from the hyperbaric chamber side of lower cylinder 40.
At this moment, middle discharge pipe 121 is owing to point to the gap of 28,28 of adjacent stator coils on the stator 22 that installs around electrodynamic element 14 up, therefore the refrigerant gas than lower temperature also can be fed to electrodynamic element 14 directions energetically, the temperature that suppresses electrodynamic element 14 rises.In addition, thus, press in the middle of becoming in the closed container 12 (MP1).
And the refrigerant gas of pressing in the middle of in the closed container 12 comes out (middle discharge press be above-mentioned MP1) via cold-producing medium ingress pipe 92 and be formed on suction path 58 on the upper support member 54 is inhaled into upper cylinder 38 from suction inlet 161 low-pressure chamber side (second level sucks and presses MP2) from sleeve pipe 144.The refrigerant gas of pressing in the middle of being inhaled into since roll 46 and the action of blade 50 carry out the second level and compress, thereby become the refrigerant gas (second level discharge press HP:12MPaG) of HTHP, from the hyperbaric chamber side by outlet 184 and drain passageway 39 again via being formed in discharge anechoic chamber 62 on the upper support member 54, the refrigerant discharge leader 96 inflow gas coolers 154.At this moment refrigerant temperature rises to+100 ℃, like this refrigerant gas of HTHP by gas cooler 154 heat radiations the water in the heating thermal storage water tank, thereby generate+90 ℃ water approximately.
In addition, in gas cooler 154, carry out refrigerant cools repeatedly, come out from gas cooler 154, then, evaporate (at this moment from heat absorption on every side) with expansion valve 156 decompression back inflow evaporators 157, be inhaled into circulation in first rotary compression element 32 from cold-producing medium ingress pipe 94 through memory 146 (not shown in Figure 18).
Particularly, in the environment of temperature,, long white on evaporimeter 157 outside low by such heat run that adds.At that time, open magnetic valve 159, expansion valve 156 becomes full-gear, carries out the defrosting running of evaporimeter 157.Thus, the middle cold-producing medium of pressing in the closed container 12 (containing a spot of high-pressure refrigerant of discharging from second rotary compression element 34) is by removing frost pipe 158 arrival gas coolers 154.The temperature of this cold-producing medium is+about 50～+ 60 ℃, in gas cooler 154, do not dispel the heat, and become the form of cold-producing medium heat absorption originally on the contrary.Then, the cold-producing medium that comes out from gas cooler 154 arrives evaporimeter 157 by expansion valve 156.That is, become the form that can not be supplied directly onto evaporimeter 157 with the temperature of pressing in the middle of roughly than higher cold-producing medium with being depressurized.Thus, evaporimeter 157 is heated, and is defrosted.At this moment, the heat that becomes hot water is transported to forming of evaporimeter 157 by cold-producing medium from gas cooler 154.
At this, make the high-pressure refrigerant of discharging from second rotary compression element 34 supply to evaporimeter 157 when defrosting, because expansion valve 156 standard-sized sheets, the suction pressure of first rotary compression element 32 rises with not reducing pressure, thus, the discharge pressure of first rotary compression element 32 (the middle pressure) uprises.This cold-producing medium is discharged from by second rotary compression element 34, because expansion valve 156 standard-sized sheets, therefore it is identical with the suction pressure of first rotary compression element 32 that the discharge pressure of second rotary compression element 34 becomes, in the discharge (high pressure) of second rotary compression element 34 with suck generation pressure reverse phenomenon in (the middle pressure).But, carry out the defrosting of evaporimeter 157 owing to take out the middle refrigerant gas of pressing of discharging from closed container 12 as described above from first rotary compression element 32, therefore, can prevent such high pressure and middle reverse phenomenon of pressing.
At this, Figure 33 is the other refrigerant loop that hot-water supply 153 of the present invention has been used in expression.In the figure, identical with Figure 18 symbol is the member that produces identical or equal effect.At this moment, another that also is provided with the pipe arrangement that is communicated with between refrigerant discharge leader 96 and expansion valve 156 and the evaporimeter 157 except the refrigerant loop of Figure 18 removes frost pipe 158A, goes to press from both sides on the frost pipe 158A at this and establishes another magnetic valve 159A.
In such formation, in adding heat run,, move same as described above owing to closing both sides' magnetic valve 159,159A.In addition, when evaporimeter 157 defrostings, the both sides that open magnetic valve 159 and 159A.So a spot of high-pressure refrigerant that the cold-producing medium of pressing in the middle of in the closed container 12 is discharged from second rotary compression element 34 flows directly into evaporimeter 157 through the downstream that past frost pipe 158 and 158A flow to expansion valve 156 under the state that is not depressurized.Reverse by the so pressure that also can avoid in second rotary compression element 34 that constitutes.
In addition, Figure 34 represents the another refrigerant loop of hot-water supply 153.The symbol identical with at this moment Figure 18 is the member that produces identical equivalent effect.At this moment, the frost pipe 158 that goes among Figure 18 is not connected with the inlet of gas cooler 154, and is connected on the pipe arrangement between expansion valve 156 and the evaporimeter 157.If adopt and make such formation, same with Figure 33 when having opened magnetic valve 159, the middle cold-producing medium of pressing in the closed container 12 flows to the downstream of expansion valve 156, flows directly into evaporimeter 157 under the state that is not depressurized.Thus, the pressure of second rotary compression element 34 that is produced when defrosting except not producing reverses, compare the advantage that also has the quantity that can reduce magnetic valve with Figure 33.
In addition, in the above-described embodiments, stopper 137 matched in clearance ground is inserted incorporating section 70A, but when joint 137 is pressed into incorporating section 70A as shown in figure 19, if on the upper support member 54 of the part corresponding, forming the 54C of the portion of keeping out of the way to the direction depression of leaving from upper cylinder 38 with this stopper 137, then can keep out of the way the 54C of portion and absorb the distortion be accompanied by the upper cylinder 38 that stopper is pressed into, can prevent degenerating of sealing by this.
In addition, in an embodiment,, sleeve pipe 141 and 142 are set neighbouringly, but also comprise the adjacent situation in the two sleeve pipe left and right sides as walking crosswise rotary compressor owing to be vertical shape rotary compressor.And at that time, cold-producing medium ingress pipe 92,94 upward with below or right-hand and leftwards arrange in the opposite direction.
In addition, in the above-described embodiments, to be discharged in the closed container 12 with the refrigerant gas of pressing in the middle of 32 compressions of first rotary compression element, but be not limited thereto, the refrigerant gas of discharging from first rotary compression element 32 can be discharged in the closed container 12 yet and be fed directly to cold-producing medium ingress pipe 92, be inhaled in second rotary compression element 34.
In the above-described embodiments, the cold-producing medium ingress pipe 92 of second rotary compression element 34 and the cold-producing medium of first rotary compression element 32 are set neighbouringly import 94, but be not limited thereto, the refrigerant discharge leader 96 of second rotary compression element 34 and the cold-producing medium ingress pipe 94 of first rotary compression element 32 also can be set neighbouringly.At this moment, refrigerant discharge leader 96 and cold-producing medium ingress pipe 94 are provided with around closed container in the opposite direction from closed container 12.
At this, Figure 26 represents the profile of another rotary compressor 10 of the present invention.At this moment, forming bearing 54A in the central authorities of upper support member 54 (second supporting member), this bearing 54A is to the outstanding long bearing of electrodynamic element 14 directions, and the lining 122 of tubular is installed on this bearing 54A inner face with erecting.This lining 122 is clipped between rotating shaft 16 and bearing 54A.The inner face of this lining 122 is contacting with rotating shaft 16 with being free to slide.Lining 122 is that the high material with carbon element of wearability that is used in the sliding that also can keep good under the inadequate situation of fuel feeding constitutes.
In addition, connect in the central authorities of lower support member 56 and to form the bearing 56A shorter than bearing 54A, on this bearing 56A inner face lining is not installed, the inner face of bearing 56A directly contacts with rotating shaft 16 with being free to slide.Thus, rotating shaft 16 is maintained at by lining 122 on the bearing 56A of upper support member 54 in electrodynamic element 14 sides (upside) of rotary compressor structure portion 18, directly is being maintained on the bearing 56A of lower support member 56 with electrodynamic element 14 opposite sides (downside).T among the figure represents above-mentioned store oil portion.
In the running of such rotary compressor 10, the rotating shaft 16 of eccentric part 44 belows is slided in the bearing 56A of lower support member 56 on one side and is rotated on one side, but, since the pressure in the cylinder 40 of first rotary compression element 32 of the first order be in the closed container 12 in the middle of press below, therefore, by from enter 16 of bearing 56A and rotating shafts by storage part T, on sliding, do not have problems.
In addition, the cylinder 38 of partial second rotary compression element 34 is interior owing to be than high high pressure in the closed container 12, the bearing 54A of the upper support member 54 that the rotating shaft 16 of eccentric part 42 tops is rotated while sliding is interior owing to pressure differential is difficult to enter oil, but, in bearing 54A,, so on sliding, do not have problems because rotating shaft 16 is being located in the lining 122 of its inner carbon system is rotated while sliding.
And, in bearing 56A,, therefore can save the lining of comparison costliness because lining 122 is not set as described above, can realize the reduction of cost of parts.
At this, in the embodiment of Figure 26, in bearing 54A, be provided with lining 122, in bearing 56A, do not establish lining and reduced cost, but suction discharge pressure according to each compression unit, also can in bearing 56A, establish carbon system lining 123 as shown in figure 27 on the contrary and be clipped in bearing 56A and rotating shaft 16 between, in bearing 54A, do not establish lining.
According to such formation, while keep the load that compression area is little, per unit area bears that holds as minor axis to become the sliding capability of big bearing 56A and keep its durability, can realize the reduction of cost by the lining that saves the less bearing 54A of duty ratio that the big per unit area of compression area bears.
At this moment, the internal diameter of lower cover 68 is littler than the internal diameter of lower support member 56, and the lower edge by lower cover 68 maintenance linings 123 can prevent coming off of lining 123 thus.
In addition, Figure 35, Figure 36 represent other embodiment of above-mentioned supporting member 54.Figure 35 represents the vertical view of upper support member 54 at this moment, and 186 is holes of passing above-mentioned kingbolt 78 among the figure, is formed on 4 positions with 90 intervals of spending in the outside of bearing 54A.In addition, the 187th, pass the hole of above-mentioned auxiliary bolt 136, in the hole 186 ... the outside be formed with two.
In addition, discharging anechoic chamber 62 cuts apart chamber 62A, 62B, 62C, 62D by four in an embodiment and is used in series being communicated with mutually the narrow path 62E of these width of cutting apart chamber 62A～62D ... (three places) constitutes.That is, cut apart chamber 62A and be communicated with by path 62E respectively with 62D with 62C, 62C, but do not have path between chamber 62A and the 62D cutting apart with 62B, 62B.
In addition, respectively cut apart chamber 62A～62D and path 62E ... be configured in the bearing 54A outside round the bearing 54A outside, cut apart chamber 62A～62D and be configured in 186,186 in adjacent respectively hole, path 62E ... be configured in hole 186 ... bearing 54A side.And what 39 pairs of above-mentioned drain passageways were positioned at an end cuts apart chamber 62A inner opening, and dump valve 127 is to be contained through the form that path 62E arrives 62A from cutting apart chamber 62B.In addition, the refrigerant passage 188 (cold-producing medium outflow portion) that is formed in the upper support member 54 is cut apart chamber 62D inner opening to what be positioned at the other end.This refrigerant passage 188 is being communicated with above-mentioned refrigerant discharge leader 96.
Respectively cut apart chamber 62A～62D and path 62E by what anechoic chamber 62 was discharged in configuration in this wise ..., making and respectively cut apart chamber 62A～62D and be positioned at 78,78 of kingbolts, path 62E is positioned at the bearing 54A side of kingbolt 78.Thus, can utilize kingbolt 78 efficiently ... space in addition, can form thus discharge anechoic chamber 62 respectively cut apart chamber 62A～62D and the narrow path 62E of width ...
And cold-producing medium is discharged to cutting apart in the 62A of chamber of the discharge anechoic chamber 62 that is formed on the upper support member 54 by drain passageway 39 from the hyperbaric chamber side of upper cylinder 38.Flowing into this higher pressure refrigerant gas of cutting apart in the 62A of chamber comes out then to enter by the narrow path 62E of width and cuts apart chamber 62B from cutting apart chamber 62A.Then cutting apart chamber 62B from this then comes out then to enter by path 62E and cuts apart chamber 62C.Then, cutting apart chamber 62C from this comes out to enter at last by path 62E and cuts apart chamber 62D.Come out to enter refrigerant passage 188 from cutting apart chamber 62D then, by herein after flow in the coolers 154 by refrigerant discharge leader 96.
Like this, in the structure of embodiment in this case, be compressed in upper cylinder 38 inside, flow into the higher pressure refrigerant gas of discharging in the anechoic chamber 62 from drain passageway 39, because one by one by a plurality of narrow path 62E of width of cutting apart chamber 62A～62D and being communicated with them ... go out from refrigerant passage 188 back, therefore the pulsation of refrigerant gas is by respectively cutting apart the narrow path 62E of chamber 62A～62D and width ... process in absorbed noise and vibration in the time of can suppressing rotary compressor effectively effectively.
As detailed above, according to the present invention, by in closed container, being provided with electrodynamic element, in the rotary compressor that constitutes by the rotary compression element of this electrodynamic element driving, owing to comprise and rolling, blade, spring member, the incorporating section of spring member, stopper, the O RunddichtringO, above-mentioned roll on the eccentric part that is entrenched in the rotating shaft that forms with cylinder that is used to constitute rotary compression element and electronic key element and in cylinder, being rotated prejudicially, above-mentioned blade contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder with above-mentioned rolling, above-mentioned spring member is used for this blade is suppressed to rolling side frequently, above-mentioned spring constitutes the incorporating section and is formed in the cylinder, and to blade-side and closed container side opening, above-mentioned stopper is positioned at the closed container side of spring member and is inserted in the incorporating section with matched in clearance, above-mentioned O RunddichtringO is installed on the side face of stopper and is used to seal between this stopper and the incorporating section, therefore, can possibly prevent from sealing to be reduced stopper being pressed into cylinder deformation when being fixed in the incorporating section, the unfavorable condition of degradation.
In addition, even because above-mentioned matched in clearance, set the cylinder and the interval of closed container formula littler than the distance of the end of closed container side from the O RunddichtringO to stopper, therefore, move to the direction that is pushed out from the incorporating section at stopper, contact it with closed container and move the moment that is prevented from, the O RunddichtringO still is positioned at the incorporating section and is sealing, and therefore can not produce any problem to the function of stopper.
Be in the rotary compressor of middle multi-stage compression formula of pressing particularly, with CO in closed container inside 2Gas uses as cold-producing medium, press in the middle of in closed container being, when becoming extra-high voltage in second rotary compression element, for the performance of keeping compressor and prevent spring member deviate to have significant effect.
According to invention, owing in closed container, be provided with electrodynamic element, constitute in the rotary compressor by the rotary compression element of this electrodynamic element driving, comprise and rolling, supporting member, blade, spring member, the incorporating section of spring member, stopper, above-mentioned roll on the eccentric part that is entrenched in the rotating shaft that forms with cylinder that is used to constitute rotary compression element and electronic key element and in cylinder, being rotated prejudicially, above-mentioned supporting member, the opening surface of inaccessible cylinder, and bearing with rotating shaft, above-mentioned blade contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder with above-mentioned rolling, above-mentioned spring member is used for this blade is suppressed to rolling side frequently, above-mentioned spring constitutes the incorporating section and is formed in the cylinder, and to blade-side and closed container side opening, above-mentioned stopper is positioned at the closed container side of spring member and is pressed into and is fixed on the incorporating section; On the supporting member of the part corresponding, forming the portion that dodges towards the direction depression of leaving from cylinder with this stopper, therefore, even because stopper is pressed into the incorporating section, cylinder to the distortion of supporting member side with bloating, also can absorb the distortion of this cylinder by this portion of dodging, can avoid between cylinder and supporting member producing the bad phenomenon in gap, thus, can possibly avoid the reduction of the sealing brought owing to cylinder deformation to make the bad phenomenon of degradation.
Be in the rotary compressor of middle multi-stage compression formula of pressing particularly, with CO in closed container inside 2Gas uses as cold-producing medium, press in the middle of in closed container being, when becoming extra-high voltage in second rotary compression element, for the performance of keeping compressor and prevent spring member deviate to have significant effect.
In addition, the objective of the invention is in the rotary compressor of inside during with slick and sly and positively carry out to becoming the partial second rotary compression element fuel feeding for middle multi-stage compression of pressing.
In addition, the rotary compressor according to the present invention, owing in closed container, have electrodynamic element, first and second rotary compression elements by this electrodynamic element driving, to be discharged in the closed container by the gas of first rotary compression element compression, the intermediate pressure gas body that again this is discharged from comprises the cylinder that is used for constituting respectively each rotary compression element by this second rotary compression element compression, be folded in the intermediate section dividing plate that is used to separate each rotary compression element between each cylinder, seal the opening surface of each cylinder respectively and have the supporting member of the bearing of rotating shaft, be formed on the oilhole in the rotating shaft; The fuel feeding road that will be used to be communicated with the suction side of this oilhole and second rotary compression element is formed in the intermediate section dividing plate, even under the high situation of the pressure in the closed container of pressing in the middle of the pressure ratio therefore in the cylinder of second rotary compression element becomes, also can utilize the suction crushing in the suction process of second rotary compression element positively to supply with oil from the fuel feeding road direction cylinder that is formed in the intermediate section dividing plate.
Thus, the lubricated of second rotary compression element can be positively carried out, the raising with reliability guaranteed of performance can be sought.
In addition according to rotary compressor of the present invention, on the basis of the above, constitute the fuel feeding road owing in the intermediate section dividing plate, wear the through hole that is communicated with outer peripheral face and rotation shaft side inner peripheral surface, and the opening of the outer peripheral face side of sealing through hole, the intercommunicating pore that is communicated with this through hole and suction side is located in the cylinder that is used to constitute second rotary compression element, therefore, the processing transfiguration of intermediate section dividing plate that is used to constitute the fuel feeding road is easy, and production cost is reduced.
According to rotary compressor of the present invention because first and second rotary compression elements that in closed container, have electrodynamic element, drive by this electrodynamic element, by first rotary compression element with compressed CO 2Refrigerant gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by the compression of this second rotary compression element, have the cylinder that is used to constitute the second rotation compression element, the opening surface that seals this cylinder and central portion have the bearing of the rotating shaft that erects supporting member, be formed on the discharge anechoic chamber that is communicated with cylinder interior on the supporting member in the bearing outside, with bolt periphery be fixed on being used on the supporting member and seal the lid of the peristome of discharge anechoic chamber; Between this lid and supporting member, sandwich sealing gasket, and between interior all end faces that cover and bearing outside, be provided with the O RunddichtringO, therefore, can on the bearing base portion, not form under the situation of sealing surface and seal fully by the interior all ends in the lid, prevent from cover and supporting member between gas leakage.
Thus, necessity was fixed on lid on the bearing by C type back-up ring as originally owing to the volume of having sought the discharge anechoic chamber enlarges not, therefore, also can realize the remarkable reduction of processing cost and cost of parts generally.
According to rotary compressor of the present invention because in closed container, have electrodynamic element, by first and second rotary compression elements that electrodynamic element drives, will be by the CO of first rotary compression element compression 2Refrigerant gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by the compression of this second rotary compression element, the opening surface of the electrodynamic element side of have the cylinder that is used to constitute the second rotation compression element, sealing this cylinder and central portion have the bearing of the rotating shaft that erects supporting member, be formed on the discharge anechoic chamber that is communicated with cylinder interior on the supporting member in the bearing outside, be installed in being used on the supporting member and seal the lid of the peristome of discharge anechoic chamber; The gauge of this lid is set at below the above 10mm of 2mm, further be that the gauge that will cover is set at 6mm, therefore in the intensity of having guaranteed lid itself, in the gas leakage that prevents to produce by its distortion, can also guarantee and electrodynamic element between insulation distance, can realize the miniaturization of compressor.
In addition, according to rotary compressor of the present invention, in above-mentioned each invention, cover bolt is fixed on periphery on the supporting member, sandwiches sealing gasket between this lid and supporting member, and is provided with the O RunddichtringO between interior all end faces that cover and bearing outside.Therefore, can on the bearing base portion, not form under the situation of sealing surface and seal fully by the interior all ends in the lid, prevent from cover and supporting member between gas leakage.
Thus, necessity was fixed on lid on the bearing by C type back-up ring as originally owing to realized enlarging not by the volume of discharge anechoic chamber, therefore, also can realize the remarkable reduction of processing cost and cost of parts generally.
According to rotary compressor of the present invention because first and second rotary compression elements that in closed container, have electrodynamic element, drive by electrodynamic element, by first rotary compression element with compressed CO 2Refrigerant gas is discharged in the closed container, the intermediate pressure gas body that again this is discharged from is by this second rotary compression element compression, comprise the cylinder that is used for constituting respectively each rotary compression element, seal the opening surface of each cylinder respectively and have the supporting member of the bearing of rotating shaft in central authorities, be formed on the discharge anechoic chamber that is communicated with cylinder interior on each supporting member in the bearing outside, being installed in being used on each supporting member seals the lid of the peristome of discharging the anechoic chamber respectively, by affixed each cylinder of a plurality of kingbolts, each supporting member and each lid, and by affixed each cylinder of auxiliary bolt and each supporting member that are positioned at the kingbolt outside, therefore can prevent to improve sealing from gas leakage such as between the cylinder of second rotary compression element that becomes high pressure and supporting member.
According to the present invention, since have on the basis of the above roll, blade, guide channel, above-mentioned roll on the eccentric part that is entrenched on the rotating shaft that is formed at electrodynamic element and eccentric rotation in the cylinder that constitutes second rotary compression element, above-mentioned blade rolls with this and contacts and will be divided into low-pressure chamber side and hyperbaric chamber side in the cylinder, and above-mentioned guide channel is formed on and is used to take in blade on the cylinder; Auxiliary bolt is positioned near the guide channel, therefore, can prevent that effectively the gas that is applied to the back pressure on the blade from leaking by auxiliary bolt.
According to the present invention, owing in closed container, have electrodynamic element, first and second rotary compression element by this electrodynamic element driving, by the gas of second rotary compression element compression with the compression of first rotary compression element, having first and second rolls, this first and second roll on chimeric first and second eccentric part, this first and second eccentric part is formed at with having 180 degree phase differences and is used to constitute first and second cylinder of first and second rotary compression element and the rotating shaft of electrodynamic element, the section configuration that connects the connecting portion of two eccentric parts is formed the big shape of wall thickness of comparing the direction vertical with the wall thickness of the eccentric direction of two eccentric parts with this eccentric direction, therefore, improve the rigidity intensity of rotating shaft, can prevent its strain effectively.
Particularly, because the side of the eccentric direction side of first eccentric part of this connecting portion is formed and the concentric circular shape of second eccentric part, the side of the eccentric direction side of second eccentric part forms and the concentric circular shape of first eccentric part, therefore when machining has the rotating shaft of two eccentric parts and connecting portion, can reduce the number of times that changes clip position.Thus, can reduce manufacturing procedure, can realize the raising of production efficiency, and then can realize that cost reduces.
According to rotary compressor of the present invention, because the compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, the CO that sucks from the cold-producing medium ingress pipe with the compression unit compression 2Cold-producing medium also is discharged in the closed container, be discharged to the outside by refrigerant discharge leader, has the sleeve pipe that connects cold-producing medium ingress pipe and refrigerant discharge leader respectively that is located on the closed container, external surface peripheral at this sleeve pipe is forming the flange part that is used for connecting in conjunction with pipe arrangement the connector of usefulness, therefore, utilize this flange part will be located at joint on the pipe arrangement that comes from the compressed air generating apparatus simply in conjunction with being connected on the sleeve pipe of closed container.
Thus, can finish inside at short notice and be the air seal test in the manufacturing engineering of the compressor of the closed of high pressure.
According to the rotary compressor of this invention, because the compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, the CO that sucks from the cold-producing medium ingress pipe with the compression unit compression 2Cold-producing medium also is discharged in the closed container, be discharged to the outside by refrigerant discharge leader, has the sleeve pipe that connects cold-producing medium ingress pipe and refrigerant discharge leader respectively that is located on the closed container, external surface peripheral at this sleeve pipe is forming the thread groove that pipe arrangement connects usefulness, therefore utilizes this thread groove the pipe arrangement from the compressed air generating apparatus can be connected on the sleeve pipe of closed container simply.
Thus, can finish inside at short notice and be the air seal test in the manufacturing engineering of the compressor of the closed of high pressure.
According to rotary compressor of the present invention, because the compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, the CO that sucks from the cold-producing medium ingress pipe with the compression unit compression 2Cold-producing medium also is discharged in the closed container, be discharged to the outside by refrigerant discharge leader, have a plurality of sleeve pipes that connect cold-producing medium ingress pipe and refrigerant discharge leader respectively that are located in the closed container, external surface peripheral at an adjacent square casing is forming the flange part that is used for connecting in conjunction with pipe arrangement the joint of usefulness, external surface peripheral at the opposing party's sleeve pipe is forming the thread groove that pipe arrangement connects usefulness simultaneously, therefore utilize and to utilize this thread groove the pipe arrangement from the compressed air generating apparatus can be connected on the sleeve pipe of closed container simply with the joint on the pipe arrangement that is located at from the compressed air generating apparatus simply in conjunction with being connected on the sleeve pipe of closed container.Can finish inside thus at short notice and be the air seal test in the manufacturing engineering of the compressor of the closed of high pressure.
Particularly owing on an adjacent square casing, forming flange part, on the opposing party's sleeve pipe, forming thread groove, therefore can not be adjacent to size for connection ratio joint significantly mutually, can utilize a plurality of pipe arrangements of this narrow space connection when the interval between sleeve pipe is narrow yet from the compressed air generating apparatus.
According to rotary compressor of the present invention, because the compression unit that in closed container, has electrodynamic element, drives by this electrodynamic element, have vessel side carriage, memory on the container side of being located at, the memory side carriage of this memory is installed, by this memory side carriage is fixed on the vessel side carriage, by two carriages memory is installed on the container, therefore, can be under the situation that does not change the closed container lateral bracket when changing the capacity of memory, only need to change the memory side carriage and get final product, thereby can prevent interference with pipe arrangement.Therefore, also eliminated influence for the manufacturing equipment of compressor.
In addition, even when the capacity of memory has produced variation, only need change transition storage lateral bracket, near the installation memory side carriage central authorities of memory or position of centre of gravity or them, promptly can be near the central authorities of memory or position of centre of gravity or them this memory of maintenance, can prevent to vibrate the increase of the noise that causes.
According to the present invention, because its compressor has electrodynamic element in closed container, first and second compression unit by this electrodynamic element driving, import the refrigerant pipe of cold-producing medium to this first compression unit, to import the refrigerant pipe of second compression unit with the refrigerant gas of pressing in the middle of this first compression unit compression, discharge will be with the refrigerant pipe of the gases at high pressure of second compression unit compression, the refrigerant pipe of first and second compression unit is connected with closed container in position adjacent, from the turning in the opposite direction of this closed container, therefore can in limited space, make each refrigerant pipe arrange each refrigerant pipe mutually uninterruptedly.
Particularly, refrigerant pipe at first compression unit is connected with closed container in the position of the downside of the refrigerator pipes of second compression unit, above each refrigerant pipe and link position closed container, disposing memory, when this memory is connected with the refrigerant pipe that cold-producing medium is imported first compression unit, can be when having avoided two refrigerant pipes to interfere mutually, descend to greatest extent by position and can make the refrigerant pipe of itself and second compression unit approaching, can improve space availability ratio significantly memory.
According to the present invention, because its compressor, in closed container, has electrodynamic element, first and second compression unit by this electrodynamic element driving, import the refrigerant pipe of cold-producing medium to this first compression unit, the refrigerant gas that is sucked by the first cold-producing medium ingress pipe with first compression unit compression also is discharged in the closed container, the refrigerant gas of pressing in the middle of will discharging again sucks by being positioned at the second outer cold-producing medium ingress pipe of closed container, compress by second compression unit, first and second cold-producing medium ingress pipe is connected with closed container in position adjacent, arrange towards mutually opposite direction from this closed container, therefore, can in limited space, make each refrigerant pipe arrange each refrigerant pipe mutually uninterruptedly.
Particularly be connected with closed container in the position of the first cold-producing medium ingress pipe at the second cold-producing medium ingress pipe downside, above each cold-producing medium ingress pipe and link position closed container, disposing memory, when this memory is connected on the first cold-producing medium ingress pipe, can be when having avoided two refrigerant pipes to interfere mutually, descend to greatest extent by position and can make itself and the second cold-producing medium ingress pipe approaching, can improve space availability ratio significantly memory.
According to the present invention, because its closed-type compressor, the compression unit that in closed container, has electrodynamic element, drives by this voltage component, by in this compression unit compressed refrigerant and the closed container of discharging, have the binding post parts on the end cap that is installed in closed container, on the end cap around these binding post parts, forming the step of regulation curvature by punching press, therefore, improved near the rigidity of the end cap the binding post parts, particularly with CO 2When compressing, under the situation that the closed container internal pressure uprises, the deflection of pressing the end cap that causes in the closed container can be reduced, resistance to pressure can be improved as cold-producing medium.
According to the present invention, because in above-mentioned closed-type compressor, it is roughly bowl-shape that above-mentioned end cap is, the central shaft that step is with this end cap is the axisymmetric shape in center, the binding post parts are installed in the center of this end cap, therefore even by the distortion of the end cap of pressing the binding post parts welding portion that causes in the closed container, can possibly avoid because the be full of cracks of the welding portion that inhomogeneous deformation produces or peel off can further improve resistance to pressure.
According to the present invention, owing to have the binding post parts on the closed container that is installed in closed-type compressor, these binding post parts have the glass portion of the circle that connects and be installed with electric terminal and form this glass portion around the installing hole circumference that is weldingly fixed on closed container on flange shape metal system installation portion, the gauge of this installation portion is the scope of 2.4 ± 0.5mm.Therefore, the use CO that the pressure in closed container is high 2In the closed-type compressor of cold-producing medium, can in the withstand voltage properties of fully guaranteeing the binding post parts, can suppress to weld the increase of fixing needed heat.
Thus, can possibly prevent to destroy owing to the installation portion at the binding post parts produces be full of cracks or the generation damage causes on glass portion gas leakage or joint.
According to the present invention, because rotary compressor of the present invention is provided with electrodynamic element and is driven by this electrodynamic element in closed container revolution compression unit, have one or more cylinders, first supporting member and second supporting member, these a plurality of cylinders constitute rotary compression element, the opening surface of the electrodynamic element opposition side of this first supporting member obturation and cylinder, the bearing that has the rotating shaft of electrodynamic element simultaneously, the opening surface of the electrodynamic element side of the inaccessible cylinder of this second supporting member, and has a bearing of rotating shaft, therefore be provided with the carbon system lining that is folded between this bearing and the rotating shaft in the bearing of a certain side in first and second supporting member, compare the reduction of the cost that can realize part with the situation that in the bearing of both sides' supporting member, is respectively equipped with lining.
Particularly, if in the bearing of first supporting member, be provided with lining, in the bearing of the second big supporting member of the contact area of the electrodynamic element side of cylinder and rotating shaft, do not establish lining, then keeping compression area little and when being applied to sliding capability in the bearing of the first big supporting member of load on the unit are, keeping endurance quality, by removing the lining that compression area is applied to greatly the bearing of the second less supporting member of duty ratio on the unit are, thereby can reduce cost.
In addition, according to rotary compressor of the present invention, first and second rotary compression element that in closed container, has electrodynamic element and drive by this electrodynamic element, will be in closed container by the gas exhaust of this first rotary compression element compression, compress the middle gas of pressing of this discharge again with this second rotary compression element, has first and second cylinder that is used for constituting respectively first and second rotary compression element, the opening surface of inaccessible first cylinder also has first supporting member of the bearing of electrodynamic element rotating shaft, the opening surface of inaccessible second cylinder also has second supporting member of the bearing of rotating shaft, be provided with the carbon system lining that is folded between this bearing and the rotating shaft in the bearing of a certain side in first and second supporting member, therefore compare with the situation that lining is set in the bearing of both sides' supporting member respectively, can reduce the cost of part.
Particularly, if in the bearing of second supporting, be provided with lining, do not establish lining in the bearing of first supporting member of the opening surface of first cylinder below the pressure in sealing becomes closed container, then, can keep sealing second cylinder higher than closed container internal pressure opening surface, carry out fuel feeding by pressure differential and become sliding capability in the bearing of second supporting member of difficulty, safeguard endurance quality, and, can eliminate the lining that carries out the bearing of the first no problem supporting member of fuel feeding by pressure differential, can reduce cost.
In addition, with CO 2Gas can have significant effect for the endurance quality of keeping compressor as becoming under the situation of extra-high voltage in cold-producing medium use, the closed container.
In addition, according to closed compressor of the present invention, the compression unit that in closed container, has electrodynamic element and drive by this electrodynamic element, discharge from the refrigerated medium discharge pipe behind the cold-producing medium of cold-producing medium ingress pipe suction by the compression unit compression, has sleeve pipe, this sleeve pipe is installed accordingly with the open-work on the flexure plane that is formed on closed container, and be used to connect cold-producing medium ingress pipe and refrigerant discharge leader, forming tabular surface on the closed container outside around open-work, and around on sleeve pipe, forming the insertion section that is used to insert in the open-work and being positioned at it and the contact site that contacts with the tabular surface of closed container, connect the contact site of affixed this sleeve pipe and the tabular surface of closed container by projection welding, by contacting of the contact site of the tabular surface of closed container and sleeve pipe, can guarantee the perpendicularity of the internal diameter of sleeve pipe and closed container, thus, do not using the perpendicularity that to make sleeve pipe under the situation of anchor clamps etc., can improve productivity and improve precision.
According to this invention because on the basis of the above, tabular surface is hollowly formed around open-work, therefore, by the outside of the sleeve pipe in the depressed part that is embedded in closed container and depressed part more precision keep the perpendicularity of sleeve pipe well.
According to rotary compressor of the present invention because the rotary compression element that in closed container, is provided with electrodynamic element and drives by this electrodynamic element, comprise roll, supporting member, suction path, suction inlet; This rolls and is formed on the chimeric and eccentric rotation in cylinder of eccentric part in the rotating shaft of the cylinder that is used to constitute rotary compression element and electrodynamic element, the opening surface of the inaccessible cylinder of above-mentioned supporting member also has the bearing of rotating shaft, above-mentioned suction path is formed on the supporting member, above-mentioned suction inlet is formed obliquely on cylinder, and be communicated with in the suction path of supporting member makes this suction path and cylinder accordingly, the edge portion of the suction passage side of this suction inlet forms the semicircle arcuation, therefore, can alleviate the passage resistance of suction inlet and the interconnecting part office that sucks path, can reduce the disorder of air-flow and realize high efficiency running.
In addition, according to the present invention, owing to the slotting cutter of preceding transverse plane can be formed the suction inlet of inclination under the state vertical with cylinder on cylinder, therefore, can with other screwed hole or the identical operation of the boring processing of lightening hole etc. in form suction inlet, can realize reducing production costs of bringing by reducing operation quantity.In addition, by such processing, even also the edge portion of the suction side of air entry can be formed the semicircle arcuation by the slotting cutter of preceding transverse plane, therefore with similarly above-mentioned, can reduce the passage resistance of the connected component of air entry and suction path, can realize high efficiency running by the disorder that reduces air-flow.
In addition, according to the present invention, owing to vertically be close at the outlet that can on its gas gas, form inclination on the cylinder by a part with the slotting cutter of preceding end toper, therefore, can with other screwed hole or the identical operation of the boring processing of lightening hole etc. in form suction inlet, can realize reducing production costs of bringing by reducing operation quantity.
In addition, according to compressor of the present invention, because in refrigerant loop, stream control device with cold-producing medium circulation of defrost circuit and this defrost circuit of control, this refrigerant loop has compressor, gas cooler, decompressor and evaporimeter, this compressor has electrodynamic element and driven by this electrodynamic element in closed container first and second compression unit, in the closed container that will discharge by the first compression unit refrigerant compressed gas, compress the middle refrigerant gas of pressing of this discharge again with second compression unit, this gas cooler flows into the cold-producing medium of discharging from second compression unit of above-mentioned compressor, this decompressor is connected with the outlet side of this gas cooler, this evaporimeter is connected with the outlet side of this decompressor, therefore, when carrying out the defrosting of evaporimeter, can make the cold-producing medium of discharging flow to defrost circuit by the stream control device, under the state that does not reduce pressure, supply to evaporimeter and heat from first compression unit.
Thus, can prevent under the state that not only makes the high-pressure refrigerant decompression of discharging from second compression unit, to supply to the problem that the pressure of the discharge that produces the situation that evaporimeter defrosts second compression unit and suction reverses.
Particularly with CO 2In the refrigerant loop of gas as the cold-producing medium use, can produce significant especially effect.In addition, when generating hot water, can the heat of the hot water of gas cooler be transported to evaporimeter, can more promptly carry out the defrosting of evaporimeter by cold-producing medium with gas cooler.
Below, according to Figure 37～Figure 39 the rotary compressor 10 of another embodiment of the present invention is described.In each figure, the symbolic representation identical with Fig. 1～Figure 18 has identical and parts same performance.
In each figure, the 10th, with carbon dioxide CO 2The longitudinal type rotary compressor of bosom die mould multistage (two-stage) compression that uses as cold-producing medium, the closed container cylindraceous 12 that this rotary compressor 10 is made of steel plate, electrodynamic element 14, rotary compressor structure portion 18 constitutes, this revolves compression mechanical part 18 and is made of first rotary compression element 32 (first order) and second rotary compression element 34 (second level), this electrodynamic element 14 is configured in the upside of the inner space of above-mentioned closed container 12, and above-mentioned first rotary compression element 32 (first order) and second rotary compression element 34 (second level) are configured in the downside (side) of this electrodynamic element 14, and drive by the rotating shaft 16 of electrodynamic element 14.It is littler than the discharge volume of first rotary compression element 3 that the discharge volume settings of these second rotary compression elements 34 becomes.
Closed container 12 with its bottom as store oil portion, constitute by the vessel 12A that takes in electrodynamic element 14 and rotary compressor structure portion 18 and roughly bowl-shape end cap (lid) 12B of the upper opening of this vessel of obturation 12A, and, be formed centrally circular installing hole 12D on this end cap 12B, the binding post parts (omission distribution) 20 that are used for supplying with to electrodynamic element 14 electricity are being installed in this installing hole 12D.
At this moment, on the end cap 12B around the binding post parts 20, forming the stage portion 12C of regulation curvature annularly by punch forming.Binding post parts 20 are made of the glass portion 20A and the metal installation portion 20B of circle, and this glass portion 20A is installed with electric terminal 139 with connecting, this installation portion 20B be formed on this glass portion 20A around, and give prominence to below outside tiltedly flange shapely.And, binding post parts 20 face its glass portion 20A from downside insertion installing hole 12D and with upside, installation portion 20B is welded under with the periphery state of contact of installation portion 20B and installing hole 12D the installing hole 12D circumference of end cap 12B, is fixed on thus on the end cap 12B.
Electrodynamic element 14 is made of stator 22 and rotor 24, and this stator 22 is being mounted annularly along the inner peripheral surface of the upper space of closed container 12, and this rotor 24 will be provided with slit G2 and insert on the inboard that is configured in this stator 22 (some gaps).This rotor 24 is fixed on the center of passing along in the rotating shaft 16 of vertical extension.
Stator 22 has duplexer 26 and stator coil 28 (Figure 39), this duplexer 36 is formed by the electromagnetic steel plate of stacked ring-type, this stator coil 28 installs around on 6 26A of tooth portion of this duplexer 26 around (concentrate around) mode (be not distribution that the coil of coiled pencil in advance is installed around, but with the mode of coil on the 26A of tooth portion) with string.In addition, rotor 24 also forms with the same duplexer 30 by electromagnetic steel plate of stator 22, inserts permanent magnet MG at this duplexer 30.
Central dividing plate 36 in clamping between above-mentioned first rotary compression element 32 and second rotary compression element 34.Be that above-mentioned first rotary compression element 32 and second rotary compression element 34 are by central dividing plate 36, be configured in the upper and lower air cylinders 38 of this central dividing plate 36, cylinder 40, at this upper and lower air cylinders 38, have 180 eccentric parts up and down 42 that are located in the rotating shaft 16 by being entrenched in 40 with spending phase differences, on 44 and carry out eccentric rotation roll 46 up and down, 48, roll 46 up and down with this, 48 the contact and will roll 46 up and down, be divided into the not shown blade up and down of low-pressure chamber side and hyperbaric chamber side in 48 respectively, the upside opening surface and the lower cylinder 40 open lower side faces of sealing upper cylinder 38 also are also used as the constituting as the upper support member 54 of supporting member and lower support member 56 of bearing of rotating shaft 16.
On upper support member 54 and lower support member 56, forming by suction inlet 161,162 respectively with the suction path 58,60 of the internal communication of upper and lower air cylinders 38,40 and the discharge anechoic chamber 62,64 of depression, two to discharge the peristome of anechoic chamber 62,64 inaccessible by cover respectively for this.That is, discharge anechoic chamber 62, discharge anechoic chamber 64 by lower cover 68 obturations as cover by upper lid 66 sealings as cover.
At this moment, erect in the central authorities of upper support member 54 and to form bearing 54A, the carbon system lining 122 of tubular is installed on the inner face of this bearing 54A.In addition, connect in the central authorities of lower support member 56 and to form bearing 56A, the carbon system lining 123 of tubular also is installed on bearing 56A inner face.Rotating shaft 16 remains on the bearing 56A of the bearing 54A of upper support member 54 and lower support member 56 by these linings 122,123.
At this moment, lower cover 68 is made of the circular steel plate of annular, by kingbolt 129 ... from below four positions of its periphery being fixed on the lower support member 56, the lower aperture portion of the discharge anechoic chamber 64 that the discharge chambe 40A of inaccessible lower cylinder 40 inside in first rotary compression element 32 is communicated with.This kingbolt 129 ... the front end screw thread be combined on the upper support member 54.The inner peripheral of lower cover 68 is inwardly being given prominence to the side from the bearing 56A inner face of lower support member 56, and thus, the lower surface of lining 123 is being kept by lower cover 68, prevents that it from coming off.
Electrodynamic element 14 sides of discharging the upper cap 66 in anechoic chamber 64 and the closed container 12 are being communicated with (Figure 38) by the intercommunicating pore 63 as the hole of perforation upper and lower air cylinders 38,40 central dividing plates 36.At this moment, the upright middle discharge pipe 121 (cold-producing medium from first rotary compression element 32 is discharged the position) of establishing in the upper end of intercommunicating pore 63, this centre discharge pipe 121 points to the clearance G 1 (being the little position of passage resistance) of 28,28 of adjacent stator coils and corresponding with the below of its gap G1 in an embodiment in electrodynamic element 14, this stator coil 28,28 installs around on the stator 22 of electrodynamic element 14 up (Figure 39).
At this moment, stator coil 28 since with string on direction installs around the 26A of tooth portion at stator 22, compare the clearance G 1 bigger (Figure 39) that stator coil is 28,28 around mode with above-mentioned distribution.Except the gap of coil 28,28, also can be the slit G2 between said stator 22 and the rotor 24 as the little position of the passage resistance of the electrodynamic element 14 of discharge pipe 121 correspondences in the middle of making.
In addition, the top peristome of the discharge anechoic chamber 62 of upper cylinder 38 internal communication of upper lid 66 obturations and second rotary compression element 34 will be divided in the closed container 12 and discharge anechoic chamber 62 and electrodynamic element 14 sides.These upper lid 66 its peripheries are by 4 kingbolts 78 ... from being fixed on the upper support member 54.This kingbolt 78 ... the front end screw thread be combined on the lower support member 56.
In addition, in rotating shaft 16, in it, be formed centrally the oilhole 80 of vertical and the horizontal oil supplying hole 82,84 that is communicated with this oilhole 80 (also being formed on the eccentric part up and down 42,44 of rotating shaft 16).
Connect 42, the 44 mutual connecting portions 90 of eccentric part up and down that are formed in the rotating shaft 16 has rigidity and its shape of cross section is become for example olive shape of non-circular shape greatly than the circular cross section of rotating shaft 16 in order to make its cross-sectional area with having 180 phase differences of spending.The shape of cross section that promptly connects the connecting portion 90 be located at the eccentric part up and down 42,44 in the rotating shaft 16 its wall thickness on the direction vertical with the eccentric direction of eccentric part 42,44 up and down is big.
Thus, the cross-sectional area that connects the connecting portion 90 that is located at the eccentric part up and down 42,44 in the rotating shaft 16 integratedly is big, has increased second moment of area, and has increased intensity (rigidity), has improved durability and reliability.Particularly when the high cold-producing medium of secondary compression working pressure, because the pressure differential of high-low pressure is big, therefore, the load that is added in the rotating shaft 16 is also big, therefore increases its intensity (rigidity) by the cross-sectional area that strengthens connecting portion 90, prevents rotating shaft 16 strains.
And, as at this moment cold-producing medium considered that the earth environment influence is little, back uses such as combustibility and toxicity be above-mentioned carbon dioxide (CO as an example of the carbonic acid gas of natural cold-producing medium 2), as the lubricating oil use is for example to be the existing oil of mineral oil, alkyl phenyl ring oil, ether oil, ester oil etc.
On the side of the vessel 12A of closed container 12, with the suction path 58,60 of upper support member 54 and lower support member 56, discharge to weld respectively on the corresponding position of the upside (opposite side) of anechoic chamber 62 and electrodynamic element 14 and fixing sleeve pipe 141,142,143 and 144 cylindraceous.Insertion is connecting an end that is used for importing to upper cylinder 38 the cold-producing medium ingress pipe 92 of refrigerant gas in sleeve pipe 141, and an end of this cold-producing medium ingress pipe 92 is communicated with the suction path 58 of upper cylinder 38.This cold-producing medium ingress pipe 92 is through closed containers 12 outer sleeve pipes 144 that arrive, and the other end inserts in the sleeve pipe 144 and to closed container 12 inner openings of electrodynamic element 14 sides.
In addition, insertion is connecting an end that is used for importing to lower cylinder 40 the cold-producing medium ingress pipe 94 of refrigerant gas in sleeve pipe 142, and an end of this cold-producing medium ingress pipe 94 is communicated with the suction path 60 of lower cylinder 40.In addition, insertion is connecting refrigerant discharge leader 96 in lining 143, and an end of this refrigerant discharge leader 96 is communicated with discharge anechoic chamber 62.
Below the action in the above formation is described.In adding heat run, magnetic valve 159 is cutting out.When by binding post parts 20 and not shown distribution during to stator coil 28 energisings of electrodynamic element 14, electrodynamic element 14 startings, rotor 24 rotations.Make to be entrenched in by this rotation and roll 46,48 eccentric rotations in upper and lower air cylinders 38,40 up and down on the eccentric part up and down 42,44 that is provided with integratedly with rotating shaft 16.
So, through cold-producing medium ingress pipe 94 and be formed on suction path 60 on the lower support member 56 be inhaled into from suction inlet 162 the low-pressure chamber side of lower cylinder 40 low pressure (first order suction pressure LP:4MPaG) refrigerant gas by roll 48 and the action of blade be compressed and become in the middle of press (MP1:8MPaG), be discharged in the closed container 12 from middle discharge pipe 121 by access 63 through the discharge anechoic chamber 64 that is formed on the lower support member 56 from the hyperbaric chamber side of lower cylinder 40.
At this moment, middle discharge pipe 121 is owing to point to clearance G 1 below of 28,28 of adjacent stator coils on the stator 22 that installs around electrodynamic element 14 up accordingly, therefore refrigerant gas waltzs through in the electrodynamic element 14 by the little clearance G 1 of passage resistance, arrive on the electrodynamic element 14, can will also feed to electrodynamic element 14 directions energetically thus than lower temperature refrigerant gas, electrodynamic element 14 refrigerant gas motion is on every side enlivened cool off electrodynamic element 14, the temperature that suppresses electrodynamic element 14 rises.In addition, thus, press in the middle of becoming in the closed container 12 (MP1).
And, the refrigerant gas of pressing in the middle of in the closed container 12 from the sleeve pipe 144 of electrodynamic element 14 upsides come out (middle discharge press be above-mentioned MP1) enter cold-producing medium ingress pipe 92, enter the suction path 58 that is formed on the upper support member 54 through closed container 12 outer cold-producing medium ingress pipes 92.And be drawn into the low-pressure chamber side (second level suck press MP2) of upper cylinder 38 from suction inlet 161 via this suction path 58.Because cold-producing medium is through being drawn into refrigerant gas in the upper cylinder 38 of second rotary compression element 34 at the cold-producing medium ingress pipe 92 of electrodynamic element 14 upsides to closed container 12 inner openings in this wise, therefore, can in closed container 12, separate oil from the refrigerant gas that middle discharge pipe 121 is discharged well.Thus, can reduce being inhaled into second rotary compression element 34 and as described later be discharged to outside oil mass, can prevent possibly that rotary compressor 10 from producing the problem of burn etc.
In addition, be inhaled into upper cylinder 38 the low-pressure chamber side in the middle of the refrigerant gas of pressing since roll 46 and the action of blade carry out second level compression, thereby become the refrigerant gas (second level discharge press HP:12MPaG) of HTHP, from the hyperbaric chamber side by being formed in discharge anechoic chamber 62 on the upper support member 54, the refrigerant discharge leader 96 inflow gas coolers 154.At this moment refrigerant temperature rises to+and 100 ℃, the water in heat radiation of the refrigerant gas of HTHP and the heating thermal storage water tank like this, thus generate+90 ℃ water approximately.
Carry out cooling refrigeration agent itself in this gas cooler 154 repeatedly, come out from gas cooler 154, and, after by expansion valve 156 decompressions, inflow evaporator 157 and evaporating is inhaled into circulation in first rotary compression element 32 from cold-producing medium ingress pipe 94.
In addition, in the above-described embodiments, sleeve pipe 144 by electrodynamic element 14 upsides makes 92 pairs of closed container 12 inner openings of cold-producing medium ingress pipe, but be not limited to this, even in closed container 12, directly make it be drawn into second rotary compression element 34, also can suck by cold-producing medium ingress pipe in the open lower side of electrodynamic element 14.By such cooling effect that can produce electrodynamic element 14 that constitutes.
Like this, because it is corresponding to discharge the little part of position and path in the electrodynamic element from the cold-producing medium of first rotary compression element, the passage resistance little position of therefore can be with the temperature that sprays from first rotary compression element lower refrigerant gas by the electrodynamic element in gap between electrodynamic element stator and rotor and the gap between rotor coil etc. is passed to around the electrodynamic element.
Thus, in the closed container around the electrodynamic element, refrigerant gas moves actively, has improved by the cooling effect of cold-producing medium to electrodynamic element.
In addition, in the closed container owing to a side that will be located at electrodynamic element from the cold-producing medium discharge position of first rotary compression element, the cold-producing medium ingress pipe that will be used to make refrigerant gas suck second rotary compression element is communicated with the closed container of the opposite side of electrodynamic element is interior, therefore, oil from the refrigerant gas that first rotary compression element is discharged is drawn into second rotary compression element by the cold-producing medium ingress pipe after being separated well the process that moves by side to opposite side from one of electrodynamic element.
Thus, the oil mass that is discharged to outside the rotary compressor from second rotary compression element is reduced.In addition, if make little position such as the passage resistance of electrodynamic element in slit between the stator of discharging position and electrodynamic element and rotor and the gap between stator coil etc. corresponding from the cold-producing medium of first rotary compression element, then the refrigerant gas of discharging from first rotary compression element successfully can be sent into the cold-producing medium ingress pipe, refrigerant gas successfully is passed to around the electrodynamic element simultaneously, by the refrigerant gas in the closed container around the electrodynamic element is moved actively, thereby can improve the cooling effect of cold-producing medium to electrodynamic element.
In addition and since with stator coil with string around mode install around in the tooth portion at stator, compare around mode with distributing, the gap between its stator coil is bigger, the circulation of refrigerant gas is better.
Followingly another rotary compressor 10 of the present invention is described according to Figure 40～Figure 44.The symbolic representation identical with Fig. 1～Figure 18 has identical and parts same performance.
In each figure, the 10th, with carbon dioxide CO 2The longitudinal type rotary compressor of bosom die mould multistage (two-stage) compression that uses as cold-producing medium, the closed container cylindraceous 12 that this rotary compressor 10 is made of steel plate, electrodynamic element 14, rotary compressor structure portion 18 constitutes, this revolves compression mechanical part 18 and is made of first rotary compression element 32 (first order) and second rotary compression element 34 (second level), this electrodynamic element 14 is configured in the upside of the inner space of above-mentioned closed container 12, and above-mentioned first rotary compression element 32 (first order) and second rotary compression element 34 (second level) are configured in the downside of this electrodynamic element 14, and drive by the rotating shaft 16 of electrodynamic element 14.
Closed container 12 with its bottom as store oil portion, constitute by the vessel 12A that takes in electrodynamic element 14 and rotary compressor structure portion 18 and roughly bowl-shape end cap (lid) 12B of the upper opening of this vessel of obturation 12A, and, on this end cap 12B, forming the binding post parts (omission distribution) 20 that are used for supplying with electricity to electrodynamic element 14.
Electrodynamic element 14 is made of stator 22 and rotor 24, and this stator 22 is being mounted annularly along the inner peripheral surface of the upper space of closed container 12, and this rotor 24 will be provided with some inserting with gap and be configured on the inboard of this stator 22.This rotor 24 is fixed on the center of passing along in the rotating shaft 16 of vertical extension.
Stator 22 has duplexer 26 and stator coil 28, and this duplexer 36 is made by the electromagnetic steel plate of stacked ring-type, this stator coil 28 with string on (concentrate around) mode installs around tooth portion at this duplexer 26.In addition, rotor 24 also forms with the same duplexer 30 by electromagnetic steel plate of stator 22, inserts permanent magnet MG at this duplexer 30.
Central dividing plate 36 in clamping between above-mentioned first rotary compression element 32 and second rotary compression element 34.Be that above-mentioned first rotary compression element 32 and second rotary compression element 34 are by central dividing plate 36, be configured in the cylinder 38 (second cylinder) up and down of this central dividing plate 36, cylinder 40 (first cylinder), at this upper and lower air cylinders 38, have 180 eccentric parts up and down 42 that are located in the rotating shaft 16 by being entrenched in 40 with spending phase differences, on 44 and carry out eccentric rotation roll 46 up and down, 48, roll 46 up and down with this, 48 the contact and with upper and lower air cylinders 38, be divided into the blade 50 (blade of downside is not shown) up and down described later of low-pressure chamber LR (Figure 44 (f)) side and hyperbaric chamber HR (Figure 44 (f)) side in 40 respectively, the upside opening surface and the lower cylinder 40 open lower side faces of inaccessible upper cylinder 38 and upper support member 54 and the lower support member 56 as the supporting member that are also used as the bearing of rotating shaft 16 constitute.
On upper support member 54 and lower support member 56, forming by suction inlet 161,162 respectively with the suction path 58,60 of the internal communication of upper and lower air cylinders 38,40 and the discharge anechoic chamber 62,64 of depression, this two discharges anechoic chamber 62,64 and openings each cylinder 38,40 opposition side respectively by the cover sealing.That is, discharge anechoic chamber 62, discharge anechoic chamber 64 by lower cover 68 sealings as cover by upper lid 66 sealings as cover.
At this moment, erect in the central authorities of upper support member 54 and to form bearing 54A, the lining 122 of tubular is installed on the inner face of this bearing 54A.In addition, connect in the central authorities of lower support member 56 and to form bearing 56A, following (with the face of lower cylinder 40 opposition sides) of lower support member 56 forms tabular surface, in addition, the lining 123 of tubular is installed also on bearing 56A inner face.This lining 122,123 is made of the good material with carbon element of sliding wearability described later, and rotating shaft 16 remains on the bearing 56A of the bearing 54A of upper support member 54 and lower support member 56 by these linings 122,123.
At this moment, lower cover 68 is made of the circular steel plate of annular, by kingbolt 129 ... from down four positions of its periphery being fixed on the lower support member 56, sealing is with the lower aperture portion of the discharge anechoic chamber 64 of lower cylinder 40 internal communication of the outlet not shown in the figures and first rotary compression element 32.This kingbolt 129 ... the front end screw thread be combined on the upper support member 54.The inner peripheral of lower cover 68 is inwardly being given prominence to the side from the bearing 56A inner face of lower support member 56, and thus, the lower surface of lining 123 (with the end of the opposition side of lower cylinder 40) kept by lower cover 68, prevents that it from coming off.
Electrodynamic element 14 sides of discharging the upper cap 66 in anechoic chamber 64 and the closed container 12 are being communicated with the access not shown in the figures of perforation upper and lower air cylinders 38,40 and central dividing plate 36.At this moment, the upright centre discharge pipe 121 of establishing in the upper end of access, this centre discharge pipe 121 points to the clearance G 1 of 28,28 of adjacent stator coils, and this stator coil 28,28 installs around on the stator 22 of electrodynamic element 14 up.
In addition, upper lid 66 obturations are discharged anechoic chamber 62 and electrodynamic element 14 sides by the top peristome of the discharge anechoic chamber 62 of upper cylinder 38 internal communication of the outlet 184 and second rotary compression element 34 with being divided in the closed container 12.These upper lid 66 its peripheries are by 4 kingbolts 78 ... from being fixed on the upper support member 54.This kingbolt 78 ... the front end screw thread be combined on the lower support member 56.
Figure 42 is the vertical view of the upper cylinder 38 of expression second rotary compression element 34.In upper cylinder 38, forming receiving room 70, in this receiving room 70, taking in above-mentioned blade 50 and with roll 46 and contacting.And, forming above-mentioned outlet 184 in the side (right side among Figure 42) of this blade 50, forming above-mentioned suction inlet 161 at the opposite side that clips blade 50 opposition sides (left side).And blade 50 will and roll the discharge chambe that constitutes between 46 at upper cylinder 38 and be divided into low-pressure chamber LR and hyperbaric chamber HR, and above-mentioned suction inlet 161 is corresponding with low-pressure chamber LR, and outlet 184 is corresponding with hyperbaric chamber HR.
On the other hand, the central dividing plate 36 of the opening surface of the opening surface of downside of sealing upper cylinder 38 and the upside of lower cylinder 40 roughly circlewise, (faces of upper cylinder 38 sides) are forming oil supply tank 191 towards radial direction laterally within the limits prescribed from inner peripheral surface as shown in figure 41 in the above.This oil supply tank 191 with the blade 50 of upper cylinder 38 from Figure 42 with roll 46 position contacting and be formed to the corresponding mode of the downside in the scope α of suction inlet 161 and edge portions blade 50 opposition sides.In addition, the low-pressure chamber LR (suction side) in the Outboard Sections of oil supply tank 191 and the upper cylinder 38 is being communicated with.
In addition, along being formed centrally the oilhole 80 of vertical and the horizontal oil supplying hole 82,84 that is communicated with this oilhole 80 (also forming on the eccentric part 42,44 up and down) in the axle, the opening of the medial surface side of the oil supply tank 191 of central dividing plate 36 is being communicated with oilhole 80 by these oil supplying holes 82,84 in rotating shaft 16.Thus, oil supply tank 191 is communicated with the low-pressure chamber LR in oilhole 80 and the upper cylinder 38.
As described later, owing to press in the middle of becoming in the closed container 12, be difficult in the upper cylinder 38 that becomes high pressure in the second level, supply with oil, but by forming the oil supply tank 191 of central dividing plate 36, suct and enter the oil supply tank 191 of central dividing plate 36 from the oil storage portion of closed container 12 inner bottom parts, supply with the low-pressure chamber LR side of upper cylinder 38 by its place along the oil that oilhole 80 rises, comes out from oil supplying hole 82,84.
Figure 43 represents the pressure oscillation in the upper cylinder 38, and P1 represents the pressure of the inner peripheral surface side of central dividing plate 36 among the figure.In the figure as represented by LP, the internal pressure (suction pressure) of the low-pressure chamber LR of upper cylinder 38 in suction process because suction pressure loss and lower than the pressure P 1 of the inner peripheral surface side of central dividing plate 36.In the meantime, will finish fuel feeding from the oilhole 80 of rotating shaft 16 by the low-pressure chamber LR that is ejected in the upper cylinder 38 through 191 of central dividing plate 36.
At this, (a)～(i) of Figure 44 is the figure of the cold-producing medium suctions-compression formation in the upper cylinder 38 of such second rotary compression element 34 of explanation.The eccentric part 4 of rotating shaft 16 in (a)～(b) of Figure 44, is closed air entry 161 by rolling 46 in the drawings when counter clockwise direction is rotated.In (c), open suction inlet 161, begin to suck cold-producing medium (also carrying out the discharge of cold-producing medium at opposition side).And the suction of cold-producing medium proceeds to (c)～(e).In this interval, oil supply tank 191 stops up by rolling 46.
Then, in (f), at first oil supply tank 191 is presented on and rolls 46 downside, by begin to be inhaled into by the blade 56 in the upper cylinder 38 and roll 46 round low-pressure chamber LR in and begin fuel feeding (beginning between the drainage area of Figure 43).After, the suction of the oil of the suction of cold-producing medium proceeds to (g)～(i).And in (j), the upside that fuel feeding is performed until oil supply tank 191 is by till rolling 46 sealings, at this, and fuel cut-off (end in the fuel feeding interval of Figure 43).The suction of cold-producing medium proceeds to later (k)～(l)～(a)～(b), is compressed afterwards and discharges from outlet 184.
Connect mutual connecting portion 90 and use it to have rigidity greatly than the circular cross section of rotating shaft 16, and it is for example olive-shaped that its section configuration is formed non-circular shape in order to make its cross-sectional area with eccentric part up and down 42,44 that 180 phase difference ground and rotating shaft 16 form.The shape of cross section that promptly connects the connecting portion 90 be located at the eccentric part up and down 42,44 in the rotating shaft 16 its wall thickness on the direction vertical with the eccentric direction of eccentric part 42,44 up and down is big.
Thus, the cross-sectional area that connects the connecting portion 90 that is located at the eccentric part up and down 42,44 in the rotating shaft 16 integratedly is big, has increased second moment of area, and has increased intensity (rigidity), has improved durability and reliability.Particularly when the high cold-producing medium of secondary compression working pressure, because the pressure differential of high-low pressure is big, therefore, the load that is added in the rotating shaft 16 is also big, therefore increases its intensity (rigidity) by the cross-sectional area that strengthens connecting portion 90, prevents rotating shaft 16 strains.
And, as at this moment cold-producing medium considered that the earth environment influence is little, back uses such as combustibility and toxicity be above-mentioned carbon dioxide (CO as an example of the carbonic acid gas of natural cold-producing medium 2), as the lubricating oil use is for example to be the existing oil of mineral oil, alkyl phenyl ring oil, ether oil, ester oil etc.
On the side of the vessel 12A of closed container 12, with the suction path 58,60 of upper support member 54 and lower support member 56, discharge to weld respectively on the corresponding position of upside (position roughly corresponding) of anechoic chamber 62 and upper cap 66 and fixing sleeve pipe 141,142,143 and 144 cylindraceous with the lower end of electrodynamic element 14. Sleeve pipe 141 and 142 is neighbouring, and sleeve pipe 143 is in sleeve pipe 141 roughly on the diagonal.In addition, sleeve pipe 144 is in the position of staggering 90 degree with sleeve pipe 141.
Insertion is connecting an end that is used for importing to upper cylinder 38 the cold-producing medium ingress pipe 92 of refrigerant gas in sleeve pipe 141, and an end of this cold-producing medium ingress pipe 92 is communicated with the suction path 58 of upper cylinder 38.This cold-producing medium ingress pipe 92 arrives lining 144 by the upside of closed container 12, the other end insert in the joint sleeve 144 and with closed container 12 in are communicated with.
In addition, insertion is connecting an end that is used for importing to lower cylinder 40 the cold-producing medium ingress pipe 94 of refrigerant gas in sleeve pipe 142, and an end of this cold-producing medium ingress pipe 94 is communicated with the suction path 60 of lower cylinder 40.In addition, insertion is connecting refrigerant discharge leader 96 in sleeve pipe 143, and an end of this refrigerant discharge leader 96 is communicated with discharge anechoic chamber 62.
And the rotary compressor 10 of embodiment also is used in the refrigerant loop of hot-water supply shown in Figure 180 153 and is similarly connecting pipe arrangement.Below the action in the above formation is described.In adding heat run, magnetic valve 159 is cutting out.When by binding post part 20 and not shown distribution during to stator coil 28 energisings of electrodynamic element 14, electrodynamic element 14 startings, rotor 24 rotations.Make to be entrenched in by this rotation and roll 46,48 eccentric rotations in upper and lower air cylinders 38,40 up and down on the eccentric part up and down 42,44 that is provided with integratedly with rotating shaft 16.
Thus, through cold-producing medium ingress pipe 94 and be formed on suction path 60 on the lower support member 56 be inhaled into from suction inlet 162 the low-pressure chamber side of lower cylinder 40 low pressure (first order suction pressure LP:4MPaG) refrigerant gas by roll 48 and the action of blade be compressed and press (MP1:8MPaG) in the middle of becoming, from the hyperbaric chamber side of lower cylinder 40 through outlet 41, be discharged in the closed container 12 from middle discharge pipe 121 through access 63 from the discharge anechoic chamber 64 that is formed on the lower support member 56.
At this moment, middle discharge pipe 121 is owing to point to the gap of 28,28 of adjacent stator coils on the stator 22 that installs around electrodynamic element 14 up, therefore refrigerant gas that can temperature is also lower is supplied in the electrodynamic element 14 energetically, and the temperature that suppresses electrodynamic element 14 energetically rises.In addition, thus, press in the middle of becoming in the closed container 12 (MP1).
And, the refrigerant gas of pressing in the middle of in the closed container 12 from sleeve pipe 144 come out (middle discharge press be above-mentioned MP1) through cold-producing medium ingress pipe 92 and be formed on suction path 5 on the upper support member 54, suck from the low-pressure chamber side LR second level that suction inlet 161 is drawn into upper cylinder 38 and press MP2).The refrigerant gas of pressing in the middle of being inhaled into by roll 46 and the action of blade 50 such second level of carrying out Fig. 5 explanation be collapsed into high-temperature high-pressure refrigerant gas (second level is discharged and pressed HP:12MPaG), from hyperbaric chamber HR side by outlet 184, through being formed in discharge anechoic chamber 62 on the upper support member 54, the refrigerant discharge leader 96 inflow gas coolers 154.At this moment refrigerant temperature rises to+and 100 ℃, the water in heat radiation of the refrigerant gas of HTHP and the heating thermal storage water tank like this, thus generate+90 ℃ water approximately.
In addition, carry out in gas cooler 154 repeatedly, itself is cooled cold-producing medium, come out from gas cooler 154, then, in expansion valve 156, be depressurized back inflow evaporator 157 and evaporate, suck circulation in first rotary compression element 32 from cold-producing medium ingress pipe 94.
According to the present invention, because first and second rotary compression element that in closed container, has electrodynamic element and drive by this electrodynamic element, to be discharged in the closed container by the gas of first rotary compression element compression, the gas of pressing in the middle of again this being discharged from compresses with second rotary compression element, has first and second cylinder that is used for constituting respectively first and second rotary compression element, be clipped in the central dividing plate of separating each rotary compression element between these cylinders, the opening surface of inaccessible respectively each cylinder and have the supporting member of bearing of the rotating shaft of electrodynamic element, be formed on the oilhole in the rotating shaft, to be formed on the face of second cylinder side of central dividing plate with the oil supply tank that is communicated with the low-pressure chamber in this oilhole and second cylinder, therefore, even high situation in the closed container of pressing in the middle of the pressure ratio of the cylinder of second rotary compression element becomes also can utilize the pressure of inspiration(Pi) loss in the breathing process of second rotary compression element positively to supply with oily in cylinder from the oil supply tank that is formed on the central dividing plate.
Thus, the lubricated of second rotary compression element can be positively carried out, the raising with reliability guaranteed of performance can be realized.Particularly can constitute oil supply tank, therefore, can make simple structureization, can suppress the raising of production cost owing to only carry out groove processing by face to second cylinder side of central dividing plate.
In addition,, be not limited to the rotary compressor of the such bosom die mould multi-stage compression formula of embodiment as rotary compressor, also effective for the rotary compressor of single cylinder.In addition, in an embodiment, rotary compressor 10 is applied to the refrigerant loop of hot-water supply 153, but also is not limited to this, the present invention also can use indoor heating installation etc. effectively.
In addition, in the invention beyond the rotary compressor also to other mode compressor (reciprocating type, scroll compressor etc.) effectively.
Below, use Figure 45～Figure 48 that another the present invention is described.At this moment invention is to liking the refrigerating plant that carbon dioxide is used for cold-producing medium.
As the coolant compressor of the refrigerating plant that carbon dioxide is used as cold-producing medium, well-known rotary split-compressor (the being designated hereinafter simply as compressor) 500X that bosom die mould for example shown in Figure 48 is arranged.In this compressor 500X, top in closed container 412 is provided with the mechanism portion 418 that is made of stator 414, rotor 416 etc., is provided with the secondary formula rotary compressor 422 that is connected with the rotor 416 of mechanism portion 418 by rotating shaft 420 simultaneously in its underpart.
In the secondary formula rotary compressor 422 of this compressor 500X, setting first compression mechanical part 424 at downside, side is setting second compression mechanical part 426 thereon, first compression mechanical part, 424 compressions with subordinate's side are passed through the gas refrigerant that cold-producing medium ingress pipe 430 imports from memory not shown in the figures, its refrigerant compressed is discharged in the closed container 412 from middle discharge pipe 428, it is imported partial second compression mechanical part 426 by extend the cold-producing medium ingress pipe 432 that is provided with from sleeve pipe 429, this sleeve pipe 429 is located in the middle tap in the body portion that is opened in closed container 412, high-pressure refrigerant is supplied to the refrigerant loop of aircondition not shown in the figures in its place's recompression from refrigerant discharge leader 434 for high pressure more.
And in this compressor 500X, refrigerator oil 460 is being deposited in the bottom in closed container 412, seeks the lubricated and bubble-tight raising of the slipper of rotary compressor structure portion 42 by sucking its refrigerator oil 460.
For example sucted by the pump machanism from the bottom that is located at rotating shaft 420, the hollow bulb by rotating shaft 420 rises, from the body part of rotating shaft 420 be located at refrigerator oil 460 that oil supplying hole 446,448,450,455 that the peripheral part that rolls 438,440 eccentric part 422,444 is installed discharges and realize the lubricated etc. of slippers.
Therefore the compressor 500X of above-mentioned formation is difficult to make the compressor miniaturization owing to be with the structure of refrigerator oil 460 savings in the inside of closed container 412.Therefore, in the air conditioning for automobiles that uses the compressor 500X compressed refrigerant construct like that etc., compressor is arranged on the limited automobile hood of volume when inner with the automobile component of engine etc., the problem that is difficult to be provided with is arranged.
Therefore, the inside that need be provided at compressor is not put aside refrigerator oil or is put aside the aircondition that there is the formation in the compressor part in addition in big portion minimal refrigerator oil, refrigerator oil, and it becomes problem to be solved.
Therefore, the present invention under this situation, in order to solve above-mentioned prior art problems, at least be communicated with compressor by refrigerant pipe, radiator, evaporimeter and in the cold-producing medium B loop that forms filling in the refrigerating plant of carbon dioxide, be provided to press from both sides in the refrigerant loop and establishing oil eliminator, simultaneously connect the store oil portion of its oil eliminator and first rotary compressor that constitutes of compressor, in above-mentioned first rotary compressor that constitutes, oil eliminator is located at the outlet side refrigerant loop of radiator or second rotary compressor that constitutes of evaporator outlet side refrigerant loop by returning oil pipe.
Below, mainly one embodiment of the invention are described according to Figure 45～Figure 47, be easy understanding, in these figure, with Figure 48 in the part that illustrated have on the part of identical function and annotate with identical symbol.
At this moment refrigerating plant 600 for example as shown in figure 45, connected compressors 500, radiator 501, expansion valve 502, evaporimeter 503, oil eliminator 504 and formed the cold-producing medium loop circuit by refrigerant pipe 510, the carbon dioxide as cold-producing medium in filling in its loop circuit.
In addition, connecting 504A of store oil portion and the compressor 500 that is located at oil eliminator 504 bottoms by returning oil pipe 512.Promptly, oil eliminator 504 has the 504A of store oil portion at bottom side as shown in figure 46, and have oil above it and adhere to separation member 504B, have a plurality of balk board 504C more above it, comprise cold-producing medium that refrigerator oil 460 enters the gas in the oil eliminator interiorly from the refrigerant pipe 510 that is connected with base plate and adhere to separation member 504B, refrigerant pipe 510 discharges of gap by configuration balk board 504C above it again from being connected with top board by oil.
It is the parts that formed by the little wire netting of stacked mesh by for example that oil adheres to separation member 504B, has the formations such as parts in such gap such as metal pot-scouring brush.And, the gas refrigerant that contains refrigerator oil 460 is when adhering to the gap of separation member 504B by oil, gas refrigerant from refrigerant pipe 510 former states that are connected with top board be discharged from, but, the refrigerator oil 460 that density is big adheres to separation member 504B collision with oil and little by little underspeeds, and finally adheres to separation member 504B attached to oil and goes up and stay on its part.
At that time, since oil adhere to separation member 504B above be provided with multi-disc balk board 504C, the effect of the cold-producing medium that the lower side that has reduction to enter oil eliminator 504 is discharged from top and the flow velocity of refrigerator oil 460 has further improved the centrifugation effect of adhering to separation member 504B from the oil of cold-producing medium separation refrigerator oil 460.
When adhere to the amount increase that separation member 504B upward stays the refrigerator oil 460 on its part attached to oil, when its quality increased, refrigerator oil 460 adhered to separation member 504B from oil and drips, and existed among the oil storage tank 504A of bottom.And owing on the base plate of oil eliminator 504, connecting and return oil pipe 512, therefore, adhere to separation member 504B from oil and drip and exist the refrigerator oil 460 the oil storage tank 504A of bottom to turn back to compressor 500 by returning oil pipe 512.
In addition, compressor 500 for example is a formation shown in Figure 47.Be that compressor 500 is not the structure at internal reservoir refrigerator oil 450, be connected the terminal part that returns oil pipe 512 with bottom that the 500X of compressor shown in Figure 48 is similarly constituting the rotating shaft 420 of hollow, return oil pipe 512 by it and discharge each slipper that supplies to rotary compressor structure portion 422, seek to improve the lubricated and air-tightness of its part from the never illustrated oil supplying hole of refrigerator oil 460 that oil eliminator 504 returns.
Promptly, in the compressor 500 of formation shown in Figure 47, do not need within it that portion is depositing refrigerator oil 460, therefore can be with little than the existing compressed oil 500X of built-in refrigerator oil 460 in closed container 412 of the closed container 422 of built-in mechanism portion 418 and rotary compressor structure portion 422.
Below, the action of refrigerating plant shown in Figure 45 600 is described.When the electrical power wiring post parts 454 by compressor 500 and distribution not shown in the figures during to the stator coil energising not shown in the figures of mechanism portion 418, mechanism portion 418 startings, its rotor not shown in the figures is rotated.By this rotation, off-centre rotation (with reference to Figure 47) is carried out in not shown in the figures the rolling that is entrenched on the eccentric part that is wholely set with rotating shaft 420 in cylinder.
Therefore, the refrigerant gas of the low pressure that is sucked by cold-producing medium ingress pipe 430 (refrigerant pipe 510) is pressed by first compression mechanical part, 424 compressions of downside and in the middle of becoming, and is discharged in the closed container 412 from middle discharge pipe 428 under the state that contains the vaporific refrigerator oil 460 of trace.
At this moment, middle discharge pipe 428 for example points upwards mechanism portion 418 install around adjacent stator coil gap each other on stator, the refrigerant gas that temperature is also lower feeds to mechanism portion 418 directions energetically, and the temperature that suppresses mechanism portion 418 thus rises.In addition, thus, press in the middle of becoming in the closed container 412.
And, the closed container 412 interior middle refrigerant gas of pressing that contain the vaporific refrigerator oil 460 of trace are compressed by second compression mechanical part 426 of upside via cold-producing medium ingress pipe 432 backs, become the refrigerant gas of the HTHP that contains vaporific refrigerator oil 460, flow in the radiator 501 through refrigerant discharge leader 434 (refrigerant pipe 510).At this moment refrigerant temperature rises to about 100 ℃, and the refrigerant gas of such HTHP that contains refrigerator oil 460 heat radiation and being cooled is come out from radiator 510 after becoming the supercriticality that contains cold-producing medium oil 460.
Then, after by expansion valve 502 decompressions, inflow evaporator 503 evaporates, when in this evaporimeter 503, evaporating, by cold-producing medium from around the heat of gasification captured, if the refrigerating plant that refrigerating plant 600 automobile refrigeratings are used, then the air in the car is cooled and carries out air-conditioning.In evaporimeter 503, low-boiling refrigerant carbon dioxide evaporates selectively, and the refrigerator oil 460 higher than cold-producing medium boiling point can evaporate hardly.
Vaporized cold-producing medium evaporation and refrigerator oil 460 flow into oil eliminator 504 in evaporimeter 503, separate refrigerator oil 460 by said mechanism from cold-producing medium.The cold-producing medium that has been separated the gas of refrigerator oil 460 by separator 414 carries out being drawn into circulation in first compression mechanical part 424 from refrigerant ingress pipe 430 (refrigerant pipe 510) repeatedly, and the refrigerator oil 460 of the liquid that is separated from cold-producing medium by oil eliminator 414 carries out repeatedly from returning the circulation that oil pipe 512 turns back to compressor 500.
Oil eliminator 504 also can be located at the outlet side of radiator 501.That is, the refrigerant carbon dioxide that has been dispelled the heat by radiator 504 is in supercriticality, does not become liquid completely.In addition, because refrigerator oil 460 is a liquid completely, even oil eliminator 504 is arranged on the outlet side of radiator 501, also can be separated into the cold-producing medium of gas and the refrigerator oil 460 of liquid by said mechanism, the refrigerator oil 460 that separates is turned back to compressor 500.
In addition, as compressor 500, its rotary compressor structure portion 422 can be an air-cylinder type compressor, also can be the inside that the refrigerant vapour of the high pressure that compressed of compression mechanical part is ejected into closed container 412, the high-pressure refrigerant that is ejected into its closed container 412 inside cold-producing medium bleed pipe from the top that is located at closed container 1 etc. is discharged to outside the machine.
As described above, in the cold-producing medium loop circuit that is communicated with compressor at least, radiator, evaporimeter by refrigerant pipe and forms in the refrigerating plant of filling carbon dioxide, because folder is being established oil eliminator on refrigerant loop, connect the store oil portion of its oil eliminator and the refrigerating plant of compressor by returning oil pipe, be the refrigerating plant that oil eliminator is located at the outlet side refrigerant loop of the outlet side refrigerant loop of radiator or evaporimeter, therefore in compressor, do not need to deposit refrigerator oil.Therefore, the size that can make the closed container of taking in compression mechanical part, mechanism portion is littler than the compressor of built-in refrigerator oil, can make the compressor miniaturization.Therefore, with its compressor during, in the limited hood of volume, when the auto parts of engine etc. are provided with, be provided with easily as the compressor of air conditioning for automobiles.

Claims (5)

1. the defroster of a refrigerant loop, this refrigerant loop has compressor, gas cooler, decompressor and evaporimeter; This compressor has electrodynamic element and driven by this electrodynamic element in closed container first and second compression unit, the above-mentioned first compression unit refrigerant compressed gas is discharged in the above-mentioned closed container, compresses the middle refrigerant gas of pressing of this discharge again with above-mentioned second compression unit; This gas cooler flows into the cold-producing medium of discharging from above-mentioned second compression unit of this compressor; This decompressor is connected with the outlet side of this gas cooler; This evaporimeter is connected with the outlet side of this decompressor; The cold-producing medium that comes out from this evaporimeter by the compression of above-mentioned the 1st compression unit; It is characterized in that in refrigerant loop, having the stream control device of the cold-producing medium circulation of defrost circuit and this defrost circuit of control, this defrost circuit is not supplied with above-mentioned evaporimeter to the cold-producing medium decompression ground of discharging from above-mentioned first compression unit with it.
2. the defroster of refrigerant loop as claimed in claim 1 is characterized in that, above-mentioned each compression unit is with CO 2Gas compresses as cold-producing medium.
3. the defroster of refrigerant loop as claimed in claim 1 or 2 is characterized in that, generates hot water by the heat radiation from the above-mentioned gas cooler.
4. refrigerating plant, carbon dioxide in filling in the cold-producing medium loop circuit that is communicated with compressor at least, radiator, evaporimeter by refrigerant pipe and forms, it is characterized in that folder is established oil eliminator in the cold-producing medium loop circuit, simultaneously by returning store oil portion and the compressor that oil pipe connects its oil eliminator.
5. refrigerating plant as claimed in claim 4 is characterized in that, oil eliminator is located in the outlet side refrigerant loop of the outlet side refrigerant loop of radiator or evaporimeter.
CN2006100743692A 2001-09-27 2002-09-26 Defroster of refrigerant circuit Expired - Fee Related CN1847756B (en)

Applications Claiming Priority (30)

Application Number Priority Date Filing Date Title
JP2001295663A JP2003097434A (en) 2001-09-27 2001-09-27 Hermetic electric compressor
JP296180/2001 2001-09-27
JP2001295654A JP2003097433A (en) 2001-09-27 2001-09-27 Hermetic electric compressor
JP2001295678A JP2003097479A (en) 2001-09-27 2001-09-27 Rotary compressor
JP2001296180A JP3986283B2 (en) 2001-09-27 2001-09-27 Rotary compressor
JP295859/2001 2001-09-27
JP2001295634A JP3728227B2 (en) 2001-09-27 2001-09-27 Rotary compressor
JP295866/2001 2001-09-27
JP2001295866A JP2003097472A (en) 2001-09-27 2001-09-27 Rotary compressor
JP295634/2001 2001-09-27
JP2001295859A JP3913507B2 (en) 2001-09-27 2001-09-27 Rotary compressor
JP295654/2001 2001-09-27
JP2001296165A JP4236400B2 (en) 2001-09-27 2001-09-27 Defroster for refrigerant circuit
JP2001295673A JP2003097478A (en) 2001-09-27 2001-09-27 Rotary compressor
JP295673/2001 2001-09-27
JP295663/2001 2001-09-27
JP295678/2001 2001-09-27
JP296165/2001 2001-09-27
JP311699/2001 2001-10-09
JP2001311699A JP3963691B2 (en) 2001-10-09 2001-10-09 Hermetic electric compressor
JP311702/2001 2001-10-09
JP315687/2001 2001-10-12
JP319419/2001 2001-10-17
JP319401/2001 2001-10-17
JP323769/2001 2001-10-22
JP323757/2001 2001-10-22
JP327817/2001 2001-10-25
JP327809/2001 2001-10-25
JP332796/2001 2001-10-30
JP366208/2001 2001-11-30

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CNB021435065A Division CN100376799C (en) 2001-09-27 2002-09-26 Compressor and its producing method, frost removing device of coolant loop, and freezing device

Publications (2)

Publication Number Publication Date
CN1847756A true CN1847756A (en) 2006-10-18
CN1847756B CN1847756B (en) 2010-05-12

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Application Number Title Priority Date Filing Date
CN2006100743692A Expired - Fee Related CN1847756B (en) 2001-09-27 2002-09-26 Defroster of refrigerant circuit
CN2008101256522A Expired - Fee Related CN101307765B (en) 2001-09-27 2002-09-26 Compressor
CNB2006100743724A Expired - Fee Related CN100425842C (en) 2001-09-27 2002-09-26 Compressor
CN2008101256471A Expired - Fee Related CN101307764B (en) 2001-09-27 2002-09-26 Compressor
CNA2008101256503A Pending CN101307761A (en) 2001-09-27 2002-09-26 Compressor
CNA2008101256490A Pending CN101307760A (en) 2001-09-27 2002-09-26 Compressor
CNA2008101256452A Pending CN101319675A (en) 2001-09-27 2002-09-26 Rotary compressor
CNB2006100743739A Expired - Fee Related CN100501167C (en) 2001-09-27 2002-09-26 Compressor
CNA2008101256467A Pending CN101307763A (en) 2001-09-27 2002-09-26 Compressor
CNA2006100743705A Pending CN1847662A (en) 2001-09-27 2002-09-26 Compressor and producing method thereof
CNB200610074371XA Expired - Fee Related CN100443728C (en) 2001-09-27 2002-09-26 Compressor

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CN2008101256522A Expired - Fee Related CN101307765B (en) 2001-09-27 2002-09-26 Compressor
CNB2006100743724A Expired - Fee Related CN100425842C (en) 2001-09-27 2002-09-26 Compressor
CN2008101256471A Expired - Fee Related CN101307764B (en) 2001-09-27 2002-09-26 Compressor
CNA2008101256503A Pending CN101307761A (en) 2001-09-27 2002-09-26 Compressor
CNA2008101256490A Pending CN101307760A (en) 2001-09-27 2002-09-26 Compressor
CNA2008101256452A Pending CN101319675A (en) 2001-09-27 2002-09-26 Rotary compressor
CNB2006100743739A Expired - Fee Related CN100501167C (en) 2001-09-27 2002-09-26 Compressor
CNA2008101256467A Pending CN101307763A (en) 2001-09-27 2002-09-26 Compressor
CNA2006100743705A Pending CN1847662A (en) 2001-09-27 2002-09-26 Compressor and producing method thereof
CNB200610074371XA Expired - Fee Related CN100443728C (en) 2001-09-27 2002-09-26 Compressor

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CN (11) CN1847756B (en)

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CN100501167C (en) 2009-06-17
JP2003097468A (en) 2003-04-03
CN101307765A (en) 2008-11-19
CN101319675A (en) 2008-12-10
CN1847661A (en) 2006-10-18
CN1847662A (en) 2006-10-18
CN101307760A (en) 2008-11-19
CN1847659A (en) 2006-10-18
JP3728227B2 (en) 2005-12-21
CN101307763A (en) 2008-11-19
CN1847756B (en) 2010-05-12
CN101307764A (en) 2008-11-19
CN101307761A (en) 2008-11-19
CN100443728C (en) 2008-12-17
CN101307765B (en) 2012-06-06
CN100425842C (en) 2008-10-15
CN1847663A (en) 2006-10-18
CN101307764B (en) 2012-06-13

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