CN103782040B - Compressor - Google Patents
Compressor Download PDFInfo
- Publication number
- CN103782040B CN103782040B CN201380002935.7A CN201380002935A CN103782040B CN 103782040 B CN103782040 B CN 103782040B CN 201380002935 A CN201380002935 A CN 201380002935A CN 103782040 B CN103782040 B CN 103782040B
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- China
- Prior art keywords
- oil
- lower bearing
- compressor
- bottom flange
- discharge
- Prior art date
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- 230000006835 compression Effects 0.000 claims abstract description 23
- 238000007906 compression Methods 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000003921 oil Substances 0.000 claims description 75
- 238000007599 discharging Methods 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 238000013316 zoning Methods 0.000 claims description 5
- 239000008393 encapsulating agent Substances 0.000 claims description 3
- 230000002459 sustained effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 54
- 238000005461 lubrication Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 13
- 238000005096 rolling process Methods 0.000 description 9
- 230000001771 impaired effect Effects 0.000 description 7
- 238000009413 insulation Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 5
- 230000001629 suppression Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 235000015927 pasta Nutrition 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
-
- 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
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/025—Lubrication; Lubricant separation using a lubricant pump
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
nullThe present invention provides a kind of compressor，Wherein，Drive shaft (3) is supported by upper bearing (metal) (7) and lower bearing (9)，Lower bearing (9) is provided with discharge port (22)，The lower discharge space (15b) that working fluid after lower discharge chambe (11b) compresses is discharged to from discharge port (22) is formed by lower bearing (9) and bottom flange (16b)，Oil maintaining part (24) is taken into a part for the oil stored in bottom has the sealing container (1) in store oil portion (19)，And the flowing of the oil being taken into more is suppressed than the flowing of the oil of store oil portion (19)，This oil maintaining part (24) is adjacent to lower discharge space (15b)，The lower surface of the projection (9a) of the central part of lower bearing (9) be positioned at the identical height in bottom with bottom flange (16b) or its on the downside of，Thus at the bottom not entrapped air volume of the drive shaft (3) that the oil of the lubrication being used in compression mechanical part or sealing is drunk up，Have high efficiency and high reliability concurrently.
Description
Technical field
The present invention relates to the compressor used in air conditioner, fridge, aerator, hot water machine etc..
Background technology
As an example of the structure of prior art, with reference to the high pressure of the double cylinders rotary shown in Fig. 4
The longitudinal section of formula hermetic type compressor illustrates.
In the diagram, by utilizing upper bearing (metal) 105, middle plate 106 and lower bearing 107 to clamp up and down
Cylinder 101,102, scroll-up/down piston 103,104 and blade (not shown), formed up and down
Two independent suction chamber 108a(108b(are not shown)) and two discharge chambe 109b(109a
(not shown)).And, compression mechanical part 111 and electrical components 112 are accommodated in hermetic container
In 113.Scroll-up/down piston 103,104 rotates with the rotation of compression mechanical part 111,
Thus compression mechanical part 111 is compressed action.Electrical components 112 is to drive shaft 110 transmission rotation
Turn power.
It is respectively arranged with discharge port (not shown), in pressure at upper bearing (metal) 105 and lower bearing 107
109b(109a(is not shown in contracting room)) it is compressed to the working fluid of authorized pressure via check-valves (not
Diagram) discharge from discharge port.The space of discharge up and down 114,115 in discharge port downstream by
Metal (upper 105,107 and upper bottom flange 116,117 surround and are formed.Lower discharge space 115
In working fluid be directed to upper discharge space 114 by upper and lower access (not shown), with from
The working fluid interflow that the discharge port of upper bearing (metal) 105 is discharged.Then, working fluid is by setting
It is placed in the peristome of bonnet, 116, flows out to electrical components 112 lower space, from airtight appearance
The discharge pipe 118 on device 113 top is to the outside discharge of compressor.
It is stored in the oil of hermetic container 113 bottom by being arranged at drive shaft 110 in the axial direction
The lower end in the hole in portion drinks up, and supplies in appropriate amount to compression mechanical part 111 everywhere, is used for sliding
Lubrication and the discharge chambe 109b(109a(in dynamic portion are not shown)) clearance seal.
In lower discharge space 115, internal whole region is filled with the discharge that temperature in compressor is the highest
Gas, therefore lower bearing 107 is heated.Further, it is accompanied by this, low in lower suction chamber 108b
The working fluid of temperature low pressure is also heated, and the volume efficiency caused of being therefore heated reduces and becomes problem.
In order to solve this technical problem, in the compressor shown in patent documentation 1, such as Fig. 5 institute
Showing, the lower suction chamber 108b side in the lower discharge space 115 of lower bearing 107 arranges viscous flow sky
Between 119, make lower discharge space 115 connect via path 102 with viscous flow space 119.Thus,
The discharge gas making High Temperature High Pressure avoids lower suction chamber 108b, and minimizing is heated, and improves volume effect
Rate.
But, in such an embodiment, the gas that temperature soon is the highest after discharge port is discharged
The lower discharge space 115 being full of connects with viscous flow space 119, and therefore occur much to remain in a standstill sky
Between the exchange of gas inside and outside 119, so effect of heat insulation is limited.
Herein, if the sealing of the central part of lower bearing 107 and bottom flange 117 is poor, then under
The gas discharging space 115 can escape to outside from sealing, by under drive shaft together with oil
End drinks up.Therefore, the lubrication of the sliding part that deficient oil supply causes deteriorates and discharge chambe 109b
Sealing deteriorate also become problem.
In order to solve this technical problem, in the compressor shown in patent documentation 2, such as Fig. 6 institute
Show, in the lower bearing 107 link surface 122 with bottom flange 117, central side link surface 122b
Relative to outer circumferential side link surface 122a only projecting height L1.Thus, central side link surface is increased
Contact force at 122b, thus improve sealing, and prevent from sucking gas from drive shaft 110 lower end
Body, thus improve reliability.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2009-2299 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2009-127608 publication
Summary of the invention
Invention is wanted to solve the technical problem that
But, in the structure shown here, make bottom flange 117 actively deform and produce axially contact
Power.Therefore, lower bearing 107 is applied in axial load and deforms sometimes, thus cannot be true
Protect the gap of itself and rolling piston, or because the cylindricity of bearing portion or perpendicularity are impaired etc., lead
Cause reliability deteriorates.
It addition, bottom flange 117 needs to be as thin as to a certain degree, therefore at link surface 122 everywhere
Easily produce gap.
And then, the most also carry out the central side link surface 122b that seals and with bolt even at edge part
Gap is produced near the centre of the outer circumferential side link surface 122a of knot.
The present invention solves above-mentioned problem of the prior art, it is provided that a kind of compressor, consists of:
Oil maintaining part is taken into a part for the oil stored in bottom has the hermetic container in store oil portion,
And making the flowing of the oil being taken into be suppressed (restriction) than the flowing of the oil in store oil portion, oil is protected
Portion of holding is adjacent with lower discharge space or configures across zoning, in this compressor, and lower bearing
The protruding lower surface of central part be positioned at height identical with the bottom of bottom flange or its on the downside of,
Thus make the recess near lower bearing central portion disappear, prevent drive shaft band gas.Thus,
Purpose is to provide a kind of and has high volume efficiency based on effect of heat insulation and the height without gas can
By property.
Technical teaching for solving the problem was
Then, in order to solve above-mentioned problem of the prior art, the compressor of the present invention such as first party
Described in face, it is characterised in that including: there is the hermetic container in store oil portion；In above-mentioned airtight appearance
Upper bearing (metal) and the lower bearing of drive shaft is supported in device；Discharge port, it is arranged at above-mentioned lower bearing,
Discharge the working fluid after discharge chambe compresses；Oil maintaining part, it is arranged at above-mentioned lower bearing,
It is taken into a part for the oil in above-mentioned store oil portion；Discharging space, it is by above-mentioned lower bearing and bottom flange
Being formed, the working fluid after compression is discharged to this discharge space via above-mentioned discharge port；With for
Independent division above-mentioned oil maintaining part and above-mentioned discharge space and be arranged at the separation of above-mentioned lower bearing
Region, wherein, above-mentioned bottom flange is installed on the link surface being arranged on above-mentioned zoning, above-mentioned
The lower surface of the protruding central part that drive shaft is through is positioned at same with the bottom of above-mentioned bottom flange
Height or its on the downside of.
Thus, lower bearing and the knot of bottom flange with the high oily maintaining part of effect of heat insulation is being used
In structure, under the drive shaft that the oil of the lubrication being used in compression mechanical part or sealing is drunk up
End not entrapped air volume.Therefore, it is possible to the deterioration of reliability that causes of anti-leukorrhagia stopping gas and compression
The reduction of engine efficiency.
Invention effect
The compressor of the present invention, use have the high oily maintaining part of effect of heat insulation lower bearing and
In the structure of bottom flange, what the oil of the lubrication being used in compression mechanical part or sealing was drunk up
The bottom of drive shaft not entrapped air volume.Thereby, it is possible to the reliability that anti-leukorrhagia stopping gas causes is disliked
Change and the reduction of compressor efficiency.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the compressor of embodiments of the present invention 1.
Fig. 2 is the sectional view of the lower bearing of embodiments of the present invention 1.
Fig. 3 is the front view of the lower bearing of embodiments of the present invention 1.
Fig. 4 is the longitudinal section of the compressor of the compressor of prior art.
Fig. 5 is the front view of the lower bearing of the compressor of the prior art of patent documentation 1.
Fig. 6 is the sectional view of the lower bearing of the compressor of the prior art of patent documentation 2.
Description of reference numerals
1 hermetic container
3 drive shafts
4 compression mechanical parts
7 upper bearing (metal)s
9 lower bearings
9a is protruding
11a upper compression chamber
Discharge chambe under 11b
Space is discharged on 15a
Space (discharge space) is discharged under 15b
16b bottom flange
19 store oil portions
22 discharge port
24 oil maintaining parts
25 next doors (separated region)
26 link surfaces
Detailed description of the invention
First invention is a kind of compressor, including: there is the hermetic container in store oil portion；Above-mentioned
Upper bearing (metal) and the lower bearing of drive shaft is supported in hermetic container；Discharge port, it is arranged at above-mentioned
Lower bearing, discharges the working fluid after discharge chambe compresses；Oil maintaining part, it is arranged at above-mentioned
Lower bearing, is taken into a part for the oil in above-mentioned store oil portion；Discharging space, it is by above-mentioned lower bearing
Being formed with bottom flange, it is empty that the working fluid after compression is discharged to this discharge via above-mentioned discharge port
Between；It is arranged at above-mentioned lower axle with in order to independently divide above-mentioned oil maintaining part and above-mentioned discharge space
The separated region held, wherein, above-mentioned bottom flange is installed on the link being arranged on above-mentioned zoning
Face, the lower surface of the protruding central part that above-mentioned drive shaft is through is positioned at above-mentioned bottom flange
Below sustained height or its on the downside of.Thus, the gas near the through oil hole of drive shaft bottom
Delay disappear, it is possible to the bearing portion that anti-leukorrhagia stopping gas causes lubrication deteriorate, discharge chambe close
Envelope deteriorates, it is possible to realize high reliability.
The compressor of the second invention, particularly in the compressor of the first invention, is used for installing
The link surface of the above-mentioned lower bearing stating bottom flange is same with the central axis of above-mentioned lower bearing
Plane.Thus, the shape of lower bearing becomes simple, and therefore processability improves, it is possible to reduces and adds
Work cost.It addition, its result, the machining accuracy of link surface improves, and the sealing of link surface carries
High, it is possible to the reliability that suppression band gas causes deteriorates.
Wherein, being made up of link surface multiple planes by arranging step etc., processability also improves,
Same effect can be obtained.
The compressor of the 3rd invention, particularly in the compressor of the first invention or the second invention,
The central shaft of the external diameter of above-mentioned projection is not consistent with the central shaft of internal diameter.Thereby, it is possible at lower axle
Holding and the central side link surface in the link surface of bottom flange, needed for substantially ensuring that, sealing everywhere is long
Degree, or can be set to thicker with the protruding thickness of the higher position of the load by lower bearing
Mode freely designs the shape of projection, it can be ensured that high reliability.
The compressor of the 4th invention, particularly in the compressor of the first invention to the 3rd invention,
Encapsulant it is provided with between lower bearing and bottom flange.Thereby, it is possible to absorb lower bearing with under
The parts precision deviation of the flatness of the link surface of valve gap, surface roughness etc., it is possible to reliably
Improve sealing, and be able to ensure that reliability.
The compressor of the 5th invention, particularly in the compressor of the first invention to the 4th invention,
Working fluid mixes with lubricating oil.Thus, it is expelled to compressor by making working fluid be dissolved in
Outside lubricating oil makes lubricating oil viscosity reduce, makes lubricating oil be easily returned to inside compressor,
It is possible to the pasta guaranteed within compressor.But, when intermiscibility height, lubricating oil is with pressure
Pressure during contracting machine run transition reduces and decompression foaming occurs, and is released in a large number by gas.At this
In the case of Zhong, the most not at drive shaft bottom entrapped air volume in the present invention, therefore, it is possible to maintain height
Reliability.
Hereinafter, referring to the drawings, embodiments of the present invention are illustrated.The present invention does not limit
In these embodiments.
(embodiment 1)
Fig. 1 is the longitudinal section of the compressor of embodiments of the present invention 1.
In FIG, in hermetic container 1, electrical components 2 it is accommodated with.Lead by electrical components 2
Nogata drive shaft 3 upwards drives compression mechanical part 4.In this compression mechanical part 4, upper cylinder
5a, upper rolling piston 6a and blade (not shown) are clamped by upper bearing (metal) 7 and middle plate 8, under
Cylinder 5b, lower rolling piston 6b and lower blade (not shown) are clamped by middle plate 8 and lower bearing 9.
Thus, upper cylinder 5a, lower cylinder 5b form independent upper suction chamber 10a, lower suction chamber respectively
10b and upper compression chamber 11a, lower discharge chambe 11b, be compressed action.Upper cylinder 5a, under
The portion of core shift up and down 3a, the 3b being integrally constituted with drive shaft 3 it is accommodated with, on this in cylinder 5b
Core shift portion 3a, lower core shift portion 3b are rotatably mounted with rolling piston 6a, lower rolling piston
6b.At upper cylinder 5a, lower cylinder 5b, abut with upper rolling piston 6a, lower rolling piston 6b
Be provided with blade (not shown), suction chamber 10 and discharge chambe 11 are separated.Upper cylinder 5a,
Under lower cylinder 5b, with upper suction chamber 10a(, suction chamber 10b(is not shown)) it has been disposed adjacently
Upper inlet hole 12a, lower inlet hole 12b.Upper inlet hole 12a, lower inlet hole 12b are pressed into
There is suction lining, suck lining 13a, 13b and separate the high-pressure refrigerant gas within hermetic container 1
Body and the low pressure refrigerant gas within upper inlet hole 12a, lower inlet hole 12b.Suck lining
13a, 13b keep hermetic being connected, for preventing with memorizer (accumulator) 14
The hydraulic compression of compressor.
When making drive shaft 3 rotate electrical components 2 energising, upper core shift portion 3a, lower core shift portion
3b core shift in upper cylinder 5a, lower cylinder 5b rotates, upper rolling piston 6a, lower rolling piston
6b, while abut rotary motion on one side with blade, is repeated the suction of refrigerant gas, compression.
Upper discharge space 15a, lower discharge space 15b are respectively by by upper bearing (metal) 7 and bonnet,
16a links, is linked with bottom flange 16b by lower bearing 9 and formed.In upper cylinder 5a, the therapeutic method to keep the adverse QI flowing downwards
Cylinder 5b each compress after gas from being arranged at the discharge port of upper bearing (metal) 7 and lower bearing 9 (not
Diagram) it is discharged to discharge space 15a, lower discharge space 15b.Access (not shown) up and down
These five parts of through upper bearing (metal) 7, upper cylinder 5a, lower cylinder 5b, middle plate 8, lower bearing 9.
Discharge gas in lower discharge space 15b is directed to upper discharge space 15a by upper and lower access
In, behind the discharge gas interflow after upper cylinder 5a compresses, by drain passageway 17 to electricity
Dynamic component 2 lower space flows out.Then, by electrical components 2 stator 2a peripheral part,
Gap between internal gas passage and stator 2a and the rotor 2b arranged of rotor 2b, is led
To electrical components 2 upper space, it is expelled to outside compressor from discharge pipe 18.
It is internally provided with hole in drive shaft 3, in drive shaft 3 lower end, oil supply mechanism 20 is installed.
Oil supply mechanism 20 is utilized to be inhaled from through oil hole 21 by the oil in the store oil portion 19 of hermetic container 1 bottom
Come up.The oil drunk up is supplied to compression mechanical part 4 everywhere, sliding part is lubricated,
And by not shown for lower discharge chambe 11b(11a()) clearance seal.
Fig. 2 is the sectional view of the lower bearing of Fig. 1, and Fig. 3 is the front view of this lower bearing.
The discharge gas of the High Temperature High Pressure after lower cylinder 5b compresses is discharged by discharge port 22
To lower discharge space 15b.In discharge port 22, check-valves (not shown) is installed, is used for preventing
Discharge gas backstreaming to lower discharge chambe 11b.
Discharge gas in lower discharge space 15b is guided from upper and lower access 23 discharges space
15a。
Oil maintaining part 24 it is provided with, by next door (zoning) 25 in lower inlet hole 12b side
With bottom flange 16b contiguity and carry out face seal, by lower discharge space 15b with oil maintaining part 24 every
From.It addition, oil maintaining part 24 connects with store oil portion 19 via small path (not shown),
Oil flows between oil maintaining part 24 and store oil portion 19 hardly.
The lower surface of the protruding 9a of the central part of lower bearing 9 is positioned at the lower surface than bottom flange 16b
Position on the lower.
It addition, the central shaft 9a1 of external diameter of protruding 9a staggers with the central shaft 9a2 of internal diameter.Logical
The central shaft 9a1 crossing the external diameter making protruding 9a is not consistent with the central shaft 9a2 of internal diameter, at lower axle
Hold in the link surface 26 of 9 and bottom flange 16b, particularly can substantially ensure that the link of central side
The seal length in face 26, or the protruding 9a of the higher position of the load that can thicken lower bearing 9
Shape Deng the protruding 9a of freely design, it can be ensured that high reliability.
In figure 3, the external diameter center of protruding 9a relative to the center of lower bearing 9 to bottom right core shift.
Hereinafter, action, effect to the compressor constituted as described above illustrate.
The gas of low-temp low-pressure enters compression mechanical part 4 from upper inlet hole 12a, lower inlet hole 12b,
Behind the compressed outside being discharged to compression mechanical part 4, from discharge pipe 18 to compressor outer row
Go out.In this process, gas within lower discharge space 15b, i.e. discharge from discharge port 22
After discharge gas soon be highest temperature high pressure under most operation mode, upper bearing (metal) 7 He
Lower bearing 9 is constantly exposed in the discharge gas of this High Temperature High Pressure.
On the other hand, the upper suction chamber 10a being full of as the suction gas forming low-temp low-pressure
(lower suction chamber 10b(is not shown)) the upper bearing (metal) 7 that plays a role of one of parts and lower bearing
9 are also exposed in the suction gas of low-temp low-pressure.
Therefore, the heat discharging gas of High Temperature High Pressure is low to low temperature by heat transfer and conduction of heat
The suction gas of pressure moves, and causes the volume sucking the compressor caused by density reduction of gas
Degradation in efficiency.
In order to suppress the movement of this heat, the lower suction chamber 10b side of lower bearing 9 is provided with work
For the oily maintaining part 24 of thermal insulation layer, improve volume efficiency.
The link surface 26 of lower bearing 9 with bottom flange 16b substantially divide have five sealings (under
State the first sealing～the 5th sealing 26a～26e).Sealing 26a～26e is by face seal
Maintain sealing.And, the risk of leakage of each sealing 26a～26e is different.
Furthermore it is preferred that at the link surface 26 of lower bearing 9 and bottom flange 16b i.e. at sealing
26a～26e is provided with encapsulant (not shown).
First sealing 26a is two positions between lower discharge space 15b and oil maintaining part 24
The face that contacts with bottom flange 16b, next door 25.It separates lower discharge space 15b and oil maintaining part
24。
The pressure of lower discharge space 15b slightly higher than oil maintaining part 24, therefore at the first sealing
In the case of the sealing of 26a is impaired, the flow of exhaust of lower discharge space 15b enters oil maintaining part
24.As a result of which it is, oil maintaining part 24 self becomes high temperature, therefore cannot play as thermal insulation layer
Effect, cause volume efficiency to deteriorate.Therefore, the first sealing 26a needs reliably to seal.
Second sealing 26b be lower bearing 9 periphery link surface 26 in oil maintaining part 24 side
Face.It separates oil maintaining part 24 and store oil portion 19.
Between oil maintaining part 24 and store oil portion 19, it is provided with small path in the manner described above,
Lying substantially in connected state, therefore the sealing of the second sealing 26b is the most impaired also without big
Hinder.But, when sealing extreme degradation, the oil of the high temperature in store oil portion 19 enters oil maintaining part
In 24, heat-proof quality is caused to deteriorate.
3rd sealing 26c be lower bearing 9 periphery link surface 26 in lower discharge 15b side, space
Face.It separates lower discharge space 15b and store oil portion 19.
The pressure of lower discharge space 15b is slightly higher than store oil portion 19, therefore at the 3rd sealing 26c
Sealing impaired in the case of, the flow of exhaust of lower discharge space 15b enters store oil portion 19.
As a result of which it is, promote that discharging gas is dissolved in oil, makes oil viscosity reduce, causes compressor
Reliability reduces.Therefore, the 3rd sealing 26c needs to reliably seal.
4th sealing 26d be lower bearing 9 central side link surface 26 in oil maintaining part 24 side
Face.It separates oil maintaining part 24 and store oil portion 19.
4th sealing 26d and the second sealing 26b is the same, and sealing is the most impaired also without big
Hinder.
5th sealing 26e be lower bearing 9 central side link surface 26 in lower discharge space 15b
The face of side.It separates lower discharge space 15b and store oil portion 19.
In the case of the sealing of the 5th sealing 26e is impaired, with the 3rd sealing 26c's
Situation is the same, there is the risk that the oil viscosity caused in oil because discharging gas to be dissolved into reduces.Enter
And, directly inhaled from the through oil hole 21 of drive shaft 3 from the 5th sealing 26e effluent air
Enter, i.e. produce so-called band gas.As a result of which it is, there is the sliding part that fuel delivery deficiency causes
Insufficient lubrication or the sealing of discharge chambe 11 not enough, cause reliability extreme degradation and compressor effect
Rate extremely reduces.Therefore, the 5th sealing 26e pays particular attention to guarantee sealing.
I.e., it is achieved high reliability and the high efficiency key point of compressor are, in drive shaft 3
Through oil hole 21 problem that do not produces band gas.
Bottom flange 16b uses thicker valve gap, the bottom flange that thus suppression bolt link causes
The radial and axial deformation of 16b.Thus, improve need reliably seal the first sealing 26a,
3rd sealing 26c and the sealing of the 5th sealing 26e.
Because bottom flange 16b is thicker, below discharge the pressure reduction of space 15b and store oil portion 19
The deformation caused also is able to minimum, it is possible to the bending of suppression bottom flange 16b central part cause the
The sealing of five sealing 26e reduces.
Cause gas to be released just in case the sealing of the 5th sealing 26e is impaired, be also discarded to ratio
The position that the through oil hole 21 of drive shaft 3 is high.Therefore, gas flows to storage by the buoyancy of bubble
The pasta side in oil portion 19, and do not sucked from through oil hole 21.
And, by making the external diameter center of protruding 9a from the center core shift of lower bearing 9, it is possible to will
The seal length of the 5th sealing 26e is set to long, therefore, it is possible to improve the 5th further
The sealing of sealing 26e.
It addition, the thickness of the protruding 9a in core shift direction can be made thicker, therefore by making compression bear
Carry the load direction caused substantially uniform with core shift direction, it is also possible to the bearing negative of the protruding 9a of suppression
Carry the deformation caused, and prevent the protruding breakage of 9a, inordinate wear.
It addition, by making lower bearing 9 for sintered part, the processing transfiguration of the protruding 9a of core shift is easy,
The increase of processing cost can be suppressed.
In the present embodiment, there is the double cylinders rotary compressor of two cylinders up and down for one
Example is illustrated, but compresses for having the single cylinder swinging of discharge port 22 at lower bearing 9
Machine, also can obtain same effect.It addition, when the 5th sealing 26e connects with through oil hole 21
Time near, even if using scroll compressor, also can obtain same effect.
Industrial utilizability
As it has been described above, the compressor of the present invention, using, there is the oily maintaining part that effect of heat insulation is high
Lower bearing and relatively thicker bottom flange structure in, the lubrication in compression mechanical part will be used for
Or the bottom not entrapped air volume of drive shaft that the oil sealed drinks up.Therefore, it is possible to anti-leukorrhagia stopping
The reliability that gas causes deteriorates and the reduction of compressor efficiency, can realize having high efficiency and height concurrently
The compressor of reliability.The present invention can be suitable for use with HFC class cold-producing medium, HCFC class system
Cryogen or the air conditioner of HFO class cold-producing medium or heat pump type hot water machine, or utilize as natural
The purposes such as the air conditioner of the carbon dioxide of cold-producing medium, heat pump type hot water machine.
Claims (5)
1. a compressor, it is characterised in that including:
There is the hermetic container in store oil portion；
Upper bearing (metal) and the lower bearing of drive shaft is supported in described hermetic container；
Discharge port, it is arranged at described lower bearing, discharges the workflow after discharge chambe compresses
Body；
Oil maintaining part, it is arranged at described lower bearing, is taken into a part for the oil in described store oil portion；
Discharging space, it is formed by described lower bearing and bottom flange, the working fluid warp after compression
It is discharged to this discharge space by described discharge port；With
It is arranged at described lower bearing to independently divide described oil maintaining part and described discharge space
Separated region, wherein,
Described bottom flange is installed on the link surface being arranged on described zoning, and described drive shaft is passed through
The protruding lower surface of the central part of logical described lower bearing is positioned at and the bottom of described bottom flange
Sustained height or its on the downside of.
2. compressor as claimed in claim 1, it is characterised in that:
For installing the described link surface of the described lower bearing of described bottom flange and described lower bearing
Central axis.
3. compressor as claimed in claim 1 or 2, it is characterised in that:
The central shaft of the external diameter of described projection is not consistent with the central shaft of internal diameter.
4. compressor as claimed in claim 1 or 2, it is characterised in that:
It is provided with encapsulant between described lower bearing and described bottom flange.
5. compressor as claimed in claim 1 or 2, it is characterised in that:
Described working fluid mixes with lubricating oil.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012121537 | 2012-05-29 | ||
| JP2012-121537 | 2012-05-29 | ||
| PCT/JP2013/003382 WO2013179658A1 (en) | 2012-05-29 | 2013-05-29 | Compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103782040A CN103782040A (en) | 2014-05-07 |
| CN103782040B true CN103782040B (en) | 2016-08-24 |
Family
ID=49672874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380002935.7A Active CN103782040B (en) | 2012-05-29 | 2013-05-29 | Compressor |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2857690B1 (en) |
| JP (1) | JP6176577B2 (en) |
| CN (1) | CN103782040B (en) |
| WO (1) | WO2013179658A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001082369A (en) * | 1999-09-09 | 2001-03-27 | Sanyo Electric Co Ltd | Two-stage compression type rotary compressor |
| CN1532409A (en) * | 2003-03-25 | 2004-09-29 | 乐金电子(天津)电器有限公司 | Exhaust gas quide structure of closed compressor |
| CN1993554A (en) * | 2004-08-06 | 2007-07-04 | Lg电子株式会社 | Capacity variable type rotary compressor and driving method thereof and driving method for air conditioner having the same |
| CN101144477A (en) * | 2006-09-14 | 2008-03-19 | 乐金电子(天津)电器有限公司 | Double-cylinder compressor lower-bearing seal groove structure |
| CN101328892A (en) * | 2007-06-20 | 2008-12-24 | 乐金电子(天津)电器有限公司 | Rotary type duplex-cylinder compressor |
| JP2009002299A (en) * | 2007-06-25 | 2009-01-08 | Daikin Ind Ltd | Rotary compressor |
| KR20100008281A (en) * | 2008-07-15 | 2010-01-25 | 엘지전자 주식회사 | Variable capacity type rotary compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2768004B2 (en) * | 1990-11-21 | 1998-06-25 | 松下電器産業株式会社 | Rotary multi-stage gas compressor |
| JP3389539B2 (en) * | 1999-08-31 | 2003-03-24 | 三洋電機株式会社 | Internal intermediate pressure type two-stage compression type rotary compressor |
| JP4007383B2 (en) * | 2005-12-27 | 2007-11-14 | ダイキン工業株式会社 | Rotary compressor |
| JP2007309146A (en) * | 2006-05-17 | 2007-11-29 | Daikin Ind Ltd | Compressor |
| JP4270317B1 (en) * | 2007-11-28 | 2009-05-27 | ダイキン工業株式会社 | Seal structure and compressor |
-
2013
- 2013-05-29 JP JP2014518284A patent/JP6176577B2/en active Active
- 2013-05-29 CN CN201380002935.7A patent/CN103782040B/en active Active
- 2013-05-29 WO PCT/JP2013/003382 patent/WO2013179658A1/en active Application Filing
- 2013-05-29 EP EP13797774.0A patent/EP2857690B1/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001082369A (en) * | 1999-09-09 | 2001-03-27 | Sanyo Electric Co Ltd | Two-stage compression type rotary compressor |
| CN1532409A (en) * | 2003-03-25 | 2004-09-29 | 乐金电子(天津)电器有限公司 | Exhaust gas quide structure of closed compressor |
| CN1993554A (en) * | 2004-08-06 | 2007-07-04 | Lg电子株式会社 | Capacity variable type rotary compressor and driving method thereof and driving method for air conditioner having the same |
| CN101144477A (en) * | 2006-09-14 | 2008-03-19 | 乐金电子(天津)电器有限公司 | Double-cylinder compressor lower-bearing seal groove structure |
| CN101328892A (en) * | 2007-06-20 | 2008-12-24 | 乐金电子(天津)电器有限公司 | Rotary type duplex-cylinder compressor |
| JP2009002299A (en) * | 2007-06-25 | 2009-01-08 | Daikin Ind Ltd | Rotary compressor |
| KR20100008281A (en) * | 2008-07-15 | 2010-01-25 | 엘지전자 주식회사 | Variable capacity type rotary compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2857690B1 (en) | 2018-10-24 |
| JP6176577B2 (en) | 2017-08-09 |
| JPWO2013179658A1 (en) | 2016-01-18 |
| WO2013179658A1 (en) | 2013-12-05 |
| CN103782040A (en) | 2014-05-07 |
| EP2857690A1 (en) | 2015-04-08 |
| EP2857690A4 (en) | 2015-11-25 |
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Application publication date: 20140507 Assignee: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Assignor: PANASONIC WANBAO APPLIANCES COMPRESSOR (GUANGZHOU) Co.,Ltd. Contract record no.: X2024990000185 Denomination of invention: compressor Granted publication date: 20160824 License type: Common License Record date: 20240424 |
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