CN101539143A - Scroll compressor - Google Patents

Abstract

The present invention provides a scroll compressor which can increase the oil separation function of refrigerant gas discharged by the scrolll compression assembly and effectively restrain the discharging amount of oil discharged from the discharging pipe. The scroll compressor of the invention is installed with the following components in a closed container (2): the scroll compression assembly (10), an electric component (20) and a supporting frame (28) (upper supporting frame) which is provided with a plurality of base parts (32). The oil separation components (56) which separates the oil in the refrigerant gas are installed respectively with a mode of covering each base part (32). The oil separation components (56) are covered by a gas-permeable material (60).

Description

Scroll compressor

Technical field

The present invention relates to scroll compressor, the vortex compression assembly of in lengthwise type seal container, taking in electric element and driving by this electric element, the refrigeration agent compression that utilizes the vortex compression assembly to suck from the suction pipe that is installed on the end cap that constitutes seal container, and from being installed on the discharge tube discharge of the container body that constitutes seal container.

Background technique

In the past, the structure of this scroll compressor is: take in motor (electric element that is made of motor) and by this electric motor driven vortex compression assembly in lengthwise type seal container, the refrigeration agent compression that utilizes the vortex compression assembly to suck from the suction pipe that is installed in the end cap that constitutes seal container, and from being installed in the discharge tube discharge of cylindrical vessel main body.

This scroll compressor is provided with path of navigation, and it will be discharged to the outer circumferential face that pressurized gas guiding in the discharge chamber of being located at seal container top is located at the end turn of electric element top.Framework and seal container inner face by cross section コ shape form described path of navigation.Be provided with the flow direction of the refrigerant gas that change circulates so that its deflector plate of discharging in this path of navigation at the outlet side of path of navigation to the outer circumferential face of end turn.

And, to discharging the top that is directed to the electric element chamber access after the refrigerant gas of discharging the chamber descends, flow into the path of navigation in the framework from the vortex compression assembly, collide with deflector plate then.Thus, refrigerant gas is discharged to the end turn outer circumferential face of electric element from the outlet side opening portion of path of navigation after making the flow direction deflection of refrigerant gas of decline.At this moment, the area by making the outlet side opening portion is greater than the area of path of navigation, and the rate of outflow reduction that makes oil and gas is caught the oil (patent documentation 1) that is included in the refrigerant gas to improve the oily effect that separates by end turn.

Patent documentation 1:(Japan) spy opens the H06-47993 communique

But, at present, though the area by making the outlet side opening portion oilyly separates effect to improve, is caught the oil that is included in the refrigerant gas by end turn than the big rate of outflow reduction that makes oil and gas of path of navigation, but, just make the area of outlet side opening portion bigger, will make that the separation effect that will be contained in the oil separation in the refrigerant gas is limited than path of navigation.Therefore, having oil still can be from the problem of discharge tube discharge.

Summary of the invention

The present invention makes in order to solve above-mentioned prior art problems, and its purpose is to provide a kind of scroll compressor, can improve the oil separation effect of the refrigerant gas of being discharged by the vortex compression assembly, can suppress the oily discharge capacity of being discharged by discharge tube effectively.

Promptly, scroll compressor of the present invention is provided with the vortex compression assembly in seal container, drive the electric element and the bearing support of this vortex compression assembly, described bearing support has the bearing portion of the running shaft that is used for this electric element of axle supporting and is used to be installed in a plurality of pedestal portion on the seal container, constitute described vortex compression assembly by fixed scroll and swing scroll, described fixed scroll uprightly is provided with the scroll wrap of scroll on the surface of end plate, described swing scroll rotates with respect to described fixed scroll by the running shaft of electric element, and on the one side of end plate, uprightly be provided with the scroll wrap of scroll, dwindle gradually by a plurality of compression volume outside-ins that two scroll wrap are meshing with each other form, the gas compression that will suck from the suction pipe that is communicated with the compression volume of peripheral part is also discharged in the seal container of fixed scroll side from central part, the electric element side that leads via the access of being located at bearing support, and the discharge tube that is installed on the seal container between pedestal portion is certainly discharged, it is characterized in that, be separately installed with the oil separation part part in the mode that covers each pedestal portion.

In addition, the scroll compressor of second aspect present invention on above-mentioned basis, covers the insulating material of oil separation part part with gas permeability.

According to the present invention, scroll compressor is provided with the vortex compression assembly in seal container, drive the electric element and the bearing support of this vortex compression assembly, described bearing support has the bearing portion of the running shaft that is used for this electric element of axle supporting and is used to be installed in a plurality of pedestal portion on the seal container, constitute described vortex compression assembly by fixed scroll and swing scroll, described fixed scroll uprightly is provided with the scroll wrap of scroll on the surface of end plate, described swing scroll rotates with respect to described fixed scroll by the running shaft of electric element, and on the one side of end plate, uprightly be provided with the scroll wrap of scroll, dwindle gradually by a plurality of compression volume outside-ins that two scroll wrap are meshing with each other form, the gas compression that will suck from the suction pipe that is communicated with the compression volume of peripheral part is also discharged in the seal container of fixed scroll side from central part, the electric element side that leads via the access of being located at bearing support, and the discharge tube that is installed on the seal container between pedestal portion is certainly discharged, owing in such scroll compressor, be separately installed with the oil separation part part in the mode that covers each pedestal portion, therefore, flow into the oil separation part part that the pedestal portion of bearing support that will be arranged in the path of this gas covers swimmingly from communication passage guiding electric element side and the gas that flows to discharge tube.

And by in the process of this oil separation part part, therefore oily separated in the gas can lower the oily discharge capacity from the discharge tube discharge effectively.

Especially, utilize each pedestal portion of bearing support that a plurality of oil separation part parts are installed respectively, so the oil in the gas separated by a plurality of oil separation part parts, in a word, can reaching very effectively, oil separates effect.

In addition, according to a second aspect of the invention, on the basis of the above, the oil separation part part is covered with the gas permeability insulating material, therefore, also can insulate without barrier between oil separation part part and the electric element.

Description of drawings

Fig. 1 is the vertical profile profile of the internal high pressure type scroll compressor with vortex compression assembly of expression one embodiment of the invention;

Fig. 2 is the stereogram of upper support frame of the internal high pressure type scroll compressor with vortex compression assembly of expression one embodiment of the invention;

Fig. 3 is the stereogram of upper support frame of the internal high pressure type scroll compressor with vortex compression assembly of expression one embodiment of the invention;

Fig. 4 is the stereogram of upper support frame of the internal high pressure type scroll compressor with vortex compression assembly of expression one embodiment of the invention;

Fig. 5 is the stereogram of upper support frame of the internal high pressure type scroll compressor with vortex compression assembly of expression one embodiment of the invention;

Fig. 6 is the worm's eye view of upper support frame of the internal high pressure type scroll compressor with vortex compression assembly of expression one embodiment of the invention;

Fig. 7 is the front elevation of oil separation part part of the present invention;

Fig. 8 is the back elevation with the oil separation part part of Fig. 7;

Fig. 9 is the worm's eye view with the oil separation part part of Fig. 7;

Figure 10 is the planimetric map when by press machine oil separation part part of the present invention being carried out stamping-out;

Figure 11 is the planimetric map when by press machine insulating material of the present invention being carried out stamping-out;

Figure 12 is the planimetric map of oil separation part part of the present invention;

Figure 13 is the front elevation of upper support frame of the internal high pressure type scroll compressor with vortex compression assembly of expression one embodiment of the invention;

Figure 14 is the A-A alignment view of upper support frame of the internal high pressure type scroll compressor of Fig. 6.

Description of reference numerals

1 scroll compressor

2 seal containers

4 container bodies

The 4A end cap

The 4B bottom

10 vortex compression assemblies

12 fixed scrolls (fixed scroll)

14 swing scroll (swing scroll)

20 electric elements

28 upper support framves

32 pedestal portions

Electric element chambers 43

50 discharge tubes

51 suction pipes

54 shields

56 oil separation part parts

The 56A main board portion

The 56B side plate

60 insulating material

The P gas path

The P2 gas channel

Embodiment

The present invention is characterized in: the oil at the refrigerant gas of being discharged by the vortex compression assembly separates the efficient condition of limited, further improves oil and separates efficient, reduces the oily discharge capacity of discharging from discharge tube effectively.By the oil separation part part being set, realize improving the purpose that oil separates efficient and reduces the oily discharge capacity of discharging from discharge tube in a plurality of pedestal portion that is used for the upper support frame is fixed on the container body.

Embodiment

Below, describe embodiments of the present invention in detail based on accompanying drawing.Fig. 1 is the vertical profile profile of the internal high pressure type scroll compressor 1 with vortex compression assembly 10 of expression one embodiment of the invention, and Fig. 2 is the stereogram of upper support frame 28 of the internal high pressure type scroll compressor 1 with vortex compression assembly 20 of expression one embodiment of the invention.

Scroll compressor 1 in the present embodiment is an internal high pressure type compressor, as shown in Figure 1, comprising: the lengthwise type seal container 2 cylindraceous that is made of steel plate; Dispose the electric element 20 in the inner space that is accommodated in this seal container 2; And be positioned at the upside of this electric element 20 and the vortex compression assembly 10 that drives by the running shaft 22 of this electric element 20.This seal container 2 as long-pending oil groove 6, and has a bottom: the container body 4 of taking in electric element 20 (motor) and vortex compression assembly 10; With the bowl-shape end cap 4A that the mode of the upper opening obturation of this container body 4 is installed; With the bowl-shape bottom 4B that the mode of the bottom opening obturation of container body 4 is installed.

In seal container 2, be provided with upper support frame (bearing support) 28, discharge chamber 42 and electric element chamber 43 with being divided in the seal container 2 by this upper support frame 28.This discharge chamber 42 is formed on the end cap 4A side (upside) of upper support frame 28, and electric element chamber 43 is formed on the bottom 4B side (downside) of upper support frame 28.Particularly, discharging chamber 42 is formed between vortex compression assembly 10 and the end cap 4A.

Under this situation, be formed with to side-prominent a plurality of (among the embodiment 4) 28A of pedestal portion of electric element 20 at the peripheral portion of upper support frame 28, W is fixed on each 28A of pedestal portion on the container body 4 of seal container 2 by welding.In addition, corresponding position is welded with the discharge tube 50 that is made of metal tube near bearing described later container body 4 (seal container 2) and upper support frame 28 portion 30, this discharge tube 50 extends given size in container body 4, and electric element chamber 43 inner openings of bearing support 28 downsides that make progress.

In addition, vortex compression assembly 10 is by being fixed in the fixed scroll (fixed scroll) 12 on the upper support frame 28 and can not constituting from the swing scroll (swing scroll) 14 of transferring to rotatablely move as described later with respect to this fixed scroll 12, under fixed scroll 12 and swing scroll 14 intermeshing states, the confined space that forms between this fixed scroll 12 and swing scroll 14 is formed with compression volume 16 (pressing chamber).Fixed scroll 12 is by discoideus end plate 12A and stand on end plate 12A and go up and form involute curve or constitute with scroll wrap (the ラ Star プ) 12B of its approximate curve, and heart portion is provided with exhaust port 17 therein, is provided with suction port 18 at peripheral part.

The end cap 4A that suction pipe 51 connects seal container 2 is connected with suction port 18 from Vertical direction, and this suction pipe 51 is positioned at a side (for example a, support foot 70 sides in a plurality of support foot 70 described later) with respect to the center line of end cap 4A.In addition, in the discharge chamber that is communicated with exhaust port 17 42 via in the access 34 of formation between vortex compression assembly 10 (fixed scroll 12 and swing scroll 14) and seal container 2 inner faces (inner face of end cap 4A and container body 4) and electric element chamber 43, being communicated with.

In addition, swing scroll 14 by discoideus end plate 14A, stand on that end plate 14A goes up and form identical shaped scroll wrap 14B with the scroll wrap 12B of fixed scroll 12, the outstanding boss 29 that forms and have boss hole at the center constitutes on end plate 14A and face scroll wrap 14B opposition side.And, be formed with the bearing portion 30 of extending continuously downwards at the central part of above-mentioned upper support frame 28, be supported with the top of running shaft 22 in this bearing portion 30.

In addition, be provided with oil pump 76 in the bottom of running shaft 22.This oil pump 76 is by the rotation of running shaft 22, the oil that will stockpile in seal container 2 inner bottom parts (bottom 4B) in the long-pending oil groove 6 that constitutes picks up, via being formed at oily path 22C in the running shaft 22 to the slide part of scroll compressor 1 (between running shaft 22 and the bearing portion 30, between eccentric shaft 22A described later and the boss 29, swing between scroll 14 and the upper support frame 28 etc.) supply.

Above-mentioned electric element 20 by have coil and fixing (for example hot pressing dress) in the stator 23 of container body 4 inner faces of above-mentioned seal container 2, stator 23 in rotation in rotor 25 formations of magnet are housed, chimeric at the center of this rotor 25 have an above-mentioned running shaft 22.And the bottom of running shaft 22 (the bottom 4B side of rotor 25) is configured lower supporting frame 52 supportings of supplementary bearing.This lower supporting frame 52 also is fixed on the container body 4 of seal container 2 at the downside of electric element 20 by welding W.

A core that is provided with a core and this running shaft 22 at the top front end of the running shaft 22 that constitutes electric element 20 departs from eccentric shaft (pin) 22A of given size, and this eccentric shaft 22A rotatably inserts in the boss hole of boss 29 of described swing scroll 14.In addition, fixed scroll 12 is fixed on the upper support frame 28 by a plurality of bolts 78 (only illustrating 1 among the figure), and swing scroll 14 is supported on the upper support frame 28 by the Euclidean mechanism (オ Le ダ ム Machine Agencies) 40 that is made of Euclidean ring (オ Le ダ system リ Application グ) 41 and Euclidean key (オ Le ダ system キ one).Thus, constitute can not rotation but rotatablely move with respect to fixed scroll 12 for swing scroll 14.

That is, swing scroll 14 drives the eccentric boss 29 that inserts of axle core with respect to this running shaft 22 by the eccentric shaft 22A with respect to the axle core off-centre of running shaft 22, utilizes the 41 not rotations of Euclidean ring but revolves round the sun along circular track with respect to fixed scroll 12.And by revolution, fixed scroll 12 and swing scroll 14 are dwindled compression volume 16 outside-ins of a plurality of crescent shapes that form gradually between scroll wrap 12B and scroll wrap 14B.Thus, refrigerant gas is inhaled in the compression volume 16 from suction pipe 51.Then, the refrigerant gas that is inhaled into outside-in in compression volume 16 is compressed gradually and becomes pressurized gas, is discharged to from exhaust port 17 and discharges chamber 42.

On the other hand, the stator 23 that constitutes electric element 20 is fixed on seal container 2 (container body 4) inner face, and at the peripheral portion of stator 23, constitutes predetermined gap 23A (space) with the inwall of container body 4.This gap 23A roughly equally spaced forms around stator 23 everywhere, is fixed on the inwall of container body 4 around the stator 23 beyond the 23A of gap.And described electric element chamber 43 is communicated with the long-pending oil groove 6 of bottom with gap 23A (path) between seal container 2 inner faces via stator 23.In addition, the top, space of electric element chamber 43 with connect seal container 2 and near bearing portion 30 discharge tube 50 of opening be communicated with.

In addition, below above-mentioned upper support frame 28, be provided with the shield 54 on every side that extends and center on above-mentioned axle support 30 from this upper support frame 28 to electric element 20 sides, and the top of this shield 54 is to running shaft 22 lateral bucklings, the part of this bending with bolt 54A (as shown in Figure 1) be fixed on upper support frame 28 below.Shield 54 separates specified gap with above-mentioned axle support 30 and is arranged on outside it.In detail, shield 54 is in the inboard of the end turn 24 of stator 23, is positioned at and regional identical position corresponding to rotor 25 tops, or is positioned at the outside (with reference to Fig. 1) in this field.In addition, B is the balace weight that is installed in above the rotor 25, and it is positioned at the inboard of shield 54.In addition, be provided with a plurality of support foots 70 (diagram is 2 among Fig. 1) on seal container 2, it is used for this seal container 2 is erect setting.

As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, on upper support frame 28, be formed with a plurality of pedestal portion 32 (embodiment is 4) that are arranged in shield 54 outsides, it is used for upper support frame 28 is fixed on container body 4.This pedestal portion 32 forms to electric element 20 side-prominent given sizes, and is shaped continuously and integratedly with upper support frame 28.And, in these pedestal portions 32, be separately installed with oil separation part part 56, and have insulating material 60 to cover oil separation part part 56 with gas permeability in the mode that covers this each pedestal portion 32.In addition, will be elaborated in the back for oil separation part part 56 and insulating material 60.In addition, in Fig. 2, Fig. 3, Fig. 4, Fig. 5,56 are meant the oil separation part part that is insulated material 60 coverings.

This pedestal portion 32 is as shown in phantom in Figure 6 in a circumferential direction uniformly-spaced being formed at everywhere, and forms with Rack at circumferencial direction.For each pedestal portion 32, when electric element 20 sides are observed, it is central circular (circular a part) that one side (central side) of upper support frame 28 and opposite side (outer circumferential side) form with running shaft 22, and forms that a side narrows down and that opposite side broadens is fan-shaped.In addition, 32A is used for upper support frame 28 is fixed in welding hole on the container body 4 by welding W.

As Fig. 7, shown in Figure 8, this oil separation part part 56 comprises: be positioned at the main board portion 56A on the plane with the following almost parallel of pedestal portion 32; Approximate right angle ground bending and be positioned at the side plate 56B of main board portion 56A both sides; Be located at the end (in Fig. 7, Fig. 8, being the lower end) of both sides board 56B, 56B and the fixedly board 58 that also extends to the direction bending given size of leaving mutually.Oil separation part part 56 is made of the steel plate of the about 0.6mm of thickness of slab, and main board portion 56A, side plate 56B and fixedly board 58 by with block plate bending and integrally formed.

On this oil separation part part 56, be provided with a plurality of through holes 57 (as shown in Figure 8) that on the thickness of slab direction, connect steel plate (oil separation part part 56), and with the arranged spaced of these through holes 57 with regulation.That is, through hole 57 forms the circle of the about 2.0mm of diameter, and a plurality of through holes 57 are with the arranged spaced engrail ordered state of 3.5mm.At all main board portion 56A, side plate 56B with fixedly all be formed with these through holes 57 (as Fig. 5, shown in Figure 9) on the board 58.And through hole 57 is not limited to circle, also can form square, oval, star, triangle etc.

Should be fixedly the size (is the size of the radiation direction at center with running shaft 22) that forms than side plate 56B of board 58 narrow, and formation Rack forms semicircle (Fig. 9) with a side of leaving side plate 56B.In addition, be provided with the fixed hole 58A of the about 6.0mm of diameter on fixing board 58, this fixed hole 58A connects the steel plate setting on the thickness of slab direction.And, bolt 64 inserted fixed hole 58A and oil separation part part 56 and the insulating material 60 narrated later are fixed on the upper support frame 28 together.In addition, the method that oil separation part part 56 is fixed on the upper support frame 28 describes in the back.

At this, the making method of oil separation part part 56 is described.Utilizing press machine offers a plurality of through holes 57 on steel plate after, steel plate is being cut into the side plate 56B of main board portion 56A shown in Figure 10, both sides and the fixing plane shape of board 58 before by bending, and offer a plurality of through holes 57.Then, be fixedly board 58 and side plate 56B bendings of central authorities with main board portion 56A, thereby finish oil separation part part 56.

On the other hand, above-mentioned insulating material 60 is made by the high material of for example insulating properties (for example Le ミ ラ (brand name)).This insulating material 60 is installed on the upper support frame 28 in the mode that covers oil separation part part 56, and the identical or big slightly profile of formation and oil separation part part 56.As shown in figure 11, this insulating material 60 comprises: than the plat part 60A of the big slightly shape of the main board portion 56A of oil separation part part 56 (shape of big approximately 1～2mm); Approximate right angle ground bending and be positioned at the both sides of plat part 60A and shape than the side plate 56B lateral piece 60B of big (shape of big approximately 1～2mm) slightly; Be located at two lateral piece 60B, 60B the end and to the direction left mutually bending given size and extend and with the fixing roughly the same fixed plate portion 62 of shape of board 58.That is,, especially, improve insulation effect with end turn 24 by making insulating material 60 for improve the insulation effect of oil separation part part 56 and electric element 20 greatly than oil separation part part 60.In addition, in Fig. 7, Fig. 8, Figure 12, do not illustrate fixed plate portion 62.

On the thickness of slab direction that is provided with on this insulating material 60 at this insulating material 60, connect and through hole 61 that diameter is bigger than the through hole 57 of being located at oil separation part part 56, and these through holes 61 are disposed with predetermined distance.That is, through hole 61 is formed the circle of the about 5.0mm of diameters, and a plurality of through hole 61 is the sawtooth ordered state with the arranged spaced of about 8.0mm.These through holes 61 only form at two lateral piece 60B, 60B (except plat part 60A and the fixed plate portion 62).Thus, constitute when for example being provided with a plurality of through hole 61 on plat part 60A, the oil of being caught by oil separation part part 56 can not fall to end turn 24.In addition, through hole 61 is not limited to circle, also can form square, oval, star, triangle etc.

In addition, be provided with the fixed hole 62A roughly the same with fixed hole 58A on fixed plate 62, this fixed hole 62A connects insulating material 60 on the thickness of slab direction.And insulating material 60 is with stacked from the mode that covers oil separation part part 56 away from a side of upper support frame 28, under this state bolt 64 inserted fixed hole 58A and is fixed on the upper support frame 28.

Below, illustrate oil separation part part 56 and insulating material 60 are fixed on method on the upper support frame 28.As shown in figure 12, at first lapped insulation material 60 on oil separation part part 56 makes the fixed hole 58A of oil separation part part 56 overlap with the fixed hole 62A of insulating material 60.Under this state with the both sides board 60B of the both sides board 56B of the plat part 60A of the main board portion 56A of oil separation part part 56 and insulating material 60, oil separation part part 56 and insulating material 60, oil separation part part 56 two fixedly the fixed plate portion 62 of board 58 and insulating material 60 roughly be adjacent to and butt.

Then bolt 64 is inserted in the fixed hole 62A of the insulating material 60 that overlaps with the fixed hole 58A of oil separation part part 56, and twist and close in the tapped hole 33 (only having represented among Figure 13) of pedestal portion 32 both sides that are located at upper support frame 28, oil separation part part 56 is fixed on the upper support frame 28.As shown in figure 14, oil separation part part 56 (containing insulating material 60) is being fixed under the state on the upper support frame 28, between main board portion 56A and pedestal portion 32, form the given size gap of (being about 5mm in an embodiment), form gas channel P2 (part of gas path P described later) (between the B-B of Figure 14) therein.

This oil separation part part 56 (containing insulating material 60) is disposed at a side near the shield 54, and opposite side is configured near the inwall of container body 4, and near the states that are positioned at the end turn 24 with main board portion 56A are fixed on the upper support frame 28.That is, oil separation part part 56 sets in the mode that the gas path P in the electric element chamber 43 are blocked, and thus, the gas channel P2 that is formed by oil separation part part 56 and pedestal portion 32 with the gas path P of arranged spaced in electric element chamber 43 that stipulate midway.

Below, the refrigerant gas of scroll compressor 1 and the mobile overview of oil are described.The discharge tube 50 of scroll compressor 1 is connected with the inlet side of not shown external condensation device, and suction pipe 51 is connected with the outlet side of not shown external boiler.Constitute well-known refrigerant circuit by this scroll compressor 1 and described condenser, not shown decompressor and described vaporizer.In addition, in this refrigerant circuit, enclose the refrigerant gas of established amount.And, the refrigerant gas of discharging from the exhaust port 17 of vortex compression assembly 10 shown in the black arrow Fig. 1, the discharge to electric element to 43 in by discharging chamber 42 and access 34.

And to stator 23 (coil) energising of electric element 20, when rotor 25 startings and running shaft 22 rotations, swing scroll 14 revolves round the sun as previously mentioned.In detail, after running shaft 22 startings, this running shaft 22 makes 14 revolution of swing scroll to rotation counterclockwise in Fig. 6.By the revolution of this swing scroll 14,, after being compressed, the compression volume 16 of vortex compression assembly 10 discharges to discharging chamber 42 from the refrigerant gas of suction pipe 51 guiding suction ports 18 from exhaust port 17, flow into electric element chamber 43 through access 34.

Being discharged to refrigerant gas in the electric element chamber 43 circulates following gas path (gas path P) in and also carries out this circulation repeatedly, described gas path is: by the gap that forms between electric element 20 and upper support frame 28 and outflow in the electric element chamber 43, flow into described condenser, decompressor, vaporizer successively from discharge tube 50 then, turn back to the suction port 18 of vortex compression assembly 10 from suction pipe 51.In detail, be discharged to gas path P that refrigerant gas in the electric element chamber 43 forms between the end turn 24 and upper support frame 28 of stator 23, between shield 54 and the container body 4 in the direction of the clock (direction of arrow of blacking among Fig. 6) advance, and from gas path P outflow and from discharge tube 50 discharges.At this moment, the refrigerant gas in the gas path P is not all discharged from discharge tube 50 but is discharged from discharge tube 50 around behind a circle or a few in container body 4 inboards again.

Promptly, oil separation part part 56 is fixed on the upper support frame 28 in the mode that gas path P is blocked as described above, therefore, be discharged to refrigerant gas in the electric element chamber 43 from access 34 and by gas path P the time, form turbulent and make the speed reduction, flow into then in the gas channel P2 with main board portion 56A collision.At this moment, owing on the main board portion 56A of oil separation part part 56 and both sides board 56B (the lateral piece 60A that contains insulating material 60), be formed with a plurality of through holes 57,61, on the plat part 60A of insulating material 60, do not form through hole, so flow into the refrigerant gas next oil separation part part 56 directions discharge on clockwise direction reliably in the gas channel P2.Thus, refrigerant gas is by oil separation part part 56 time, successively by a plurality of through holes 61,57, interior, a plurality of through holes 57,61 of gas channel P2.

The refrigerant gas that is discharged in the electric element chamber 43 from above-mentioned communication paths 34 is alternately passing through gas path P, gas channel P2 (oil separation part part 56), gas path P, gas channel P2 (oil separation part part 56) afterwards in the direction of the clock, discharges from discharge tube 50.That is, when refrigerant gas passes through the gas path P of formation in electric element chamber 43, pass through these a plurality of oil separation part parts 56 (gas channel P2) with a plurality of oil separation part parts 56 collision backs.Thus, improve the oil separation effect of oil separation part part 56, most of oil is separated out from refrigerant gas.Below, situation that refrigerant gas is only passed through from oil separation part part 56 from the situation by (in a plurality of through holes 61,57, gas channel P2, a plurality of through hole 61,57 by), refrigerant gas between the main board portion 56A of oil separation part part 56 and the pedestal portion 32 and refrigerant gas with 56 collisions of oil separation part part and forms turbulent flow by a plurality of through holes 57 flow velocity is reduced to separate oil condition, singly are called the oil separation of oil separation part part 56.

Under the above-mentioned situation, the refrigerant gas of gas path P does not all round in container body 4 inboards from discharge tube 50 discharges or during several weeks (black arrow Fig. 6), is further separated by oil separation part part 56.Thus, the most of oil in the refrigerant gas is separated effectively.Then, the oil of separating from refrigerant gas falls from oil separation part part 56, falls by the gap 23A long-pending oil groove 6 downwards between stator 23 and seal container 2 inner faces, supplies with to above-mentioned slide part once more by oil pump 76.

Like this, be separately installed with oil separation part part 56 in the mode that covers each pedestal 32, the refrigerant gas that therefore flows to discharge tube 50 from access 34 guiding electric element 20 sides can be swimmingly by being arranged in oil separation part part 56 gas path P, that cover the pedestal portion 32 of bearing support 28.And, since at refrigerant gas by in the process of this oil separation part part 56, refrigerant gas oily separated is so can reduce oily discharge capacity from discharge tube 50 effectively.

Especially, utilize a plurality of pedestal portion 32 of upper support frame 28 that oil separation part part 56 is installed on respectively in each pedestal portion 32,, can realize that in a word extremely effectively oil separates effect so the oil in the refrigerant gas is separated by a plurality of oil separation part parts 56.In addition, owing to be to cover each oil separation part part 56 respectively by gas permeability insulating material 60, so can also carry out the insulation between oil separation part part 56 and the electric element 20 without barrier.

In addition, in an embodiment, though the pedestal portion 32 of the main board portion 56A of oil separation part part 56 and upper support frame 28 forms abreast, it is parallel that main board portion 56A and pedestal portion 32 are not limited to, also can make container body 4 sides with respect to running shaft 22 downwards (long-pending oil groove 6 directions) tilt.At this moment, the oil of catching by oil separation part part 56 inner face of seal container 2 that can lead, thereby can make oil from the gap 23A of stator 23 and seal container 2 inner faces swimmingly vector product oil groove 6 fall.Thus, can prevent reliably that the oil of being caught by oil separation part part 56 from falling and splash once more and the unfavorable condition of discharging from discharge tube 50 by the rotation of rotor 25 towards rotor 25 sides from the end turn 24.

In addition, oil separation part part 56 (containing insulating material 60) is configured in the one side near the shield 54, opposite side is configured near the inwall of container body 4, and with main board portion 56A be configured in end turn 24 near, be fixed on the upper support frame 28 in the mode of gas path P being blocked by gas passageway P2, but oil separation part part 56 is not limited thereto, and main board portion 56A and coil-end 24 are separated.Promptly, the pedestal portion 32 by upper support frame 26 is set and the gap of 1/2～1/3 size between the end turn 24, can obtain the high insulation effect, in addition between oil separation part part 56 and the electric element 20, because the insulation effect between oil separation part part 56 and the electric element 20 improves, and also can cancel insulating material 60.The cost that can suppress scroll compressor 1 thus.

In addition, also can between oil separation part part 56 and insulating material 60, be provided with the screen cloth in about 150 mesh sieve holes.At this moment, owing to, can easily catch the vaporific oil that contains in the refrigerant gas, so can be captured in the oil component that contains in the refrigerant gas that gas path P passes through very effectively with 150 mesh sieve holes formations screen cloth.

In addition, in an embodiment, put down in writing the size and the shape of oil separation part part 56, but the size of oil separation part part 56 and shape be not limited thereto, obviously in the scope of the main points that do not break away from vortex compression assembly 10, can change shape and size.Certainly, the present invention is not only limited to embodiment, can carry out various changes in the scope that does not break away from aim of the present invention.

Claims (2)

1, a kind of scroll compressor, in seal container, be provided with the vortex compression assembly, drive the electric element and the bearing support of this vortex compression assembly, described bearing support has the bearing portion of the running shaft that is used for this electric element of axle supporting and is used to be installed in a plurality of pedestal portion on the described seal container, constitute described vortex compression assembly by fixed scroll and swing scroll, described fixed scroll uprightly is provided with the scroll wrap of scroll on the surface of end plate, described swing scroll rotates with respect to described fixed scroll by the running shaft of described electric element, and on the one side of end plate, uprightly be provided with the scroll wrap of scroll

Dwindle gradually by a plurality of compression volume outside-ins that described two scroll wrap are meshing with each other form, the gas compression that will suck from the suction pipe that is communicated with the described compression volume of peripheral part is also discharged in the described seal container of described fixed scroll side from central part, the described electric element side that leads via the access of being located at described bearing support, and the discharge tube that is installed on the described seal container between described pedestal portion is certainly discharged, it is characterized in that

Be separately installed with the oil separation part part in the mode that covers described each pedestal portion.

2, scroll compressor as claimed in claim 1 is characterized in that, covers described oil separation part part by the insulating material of gas permeability.

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