CN103782033A - Compressor - Google Patents

Compressor Download PDF

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Publication number
CN103782033A
CN103782033A CN201280043364.7A CN201280043364A CN103782033A CN 103782033 A CN103782033 A CN 103782033A CN 201280043364 A CN201280043364 A CN 201280043364A CN 103782033 A CN103782033 A CN 103782033A
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CN
China
Prior art keywords
space
refrigerant gas
oil
container
compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201280043364.7A
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Chinese (zh)
Other versions
CN103782033B (en
Inventor
中本达也
作田淳
二上义幸
河野博之
今井悠介
森本敬
飨场靖
桥本雄史
福田昭德
平塚武志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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Publication of CN103782033A publication Critical patent/CN103782033A/en
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Publication of CN103782033B publication Critical patent/CN103782033B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/04Measures to avoid lubricant contaminating the pumped fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/02Lubrication
    • F04B39/0223Lubrication characterised by the compressor type
    • F04B39/023Hermetic compressors
    • F04B39/0238Hermetic compressors with oil distribution channels
    • F04B39/0246Hermetic compressors with oil distribution channels in the rotating shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0253Details concerning the base
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations 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
    • F04C23/008Hermetic pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02Lubrication; Lubricant separation
    • F04C29/026Lubricant separation

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

Abstract

The invention provides a compressor. The compressor is provided with an oil separation mechanism (40) that separates oil from a refrigerant gas discharged from a compression mechanism (10). A discharge pipe (4) is eccentrically positioned from a central shaft (49) of a sealed container (1), and the discharge pipe (4) is positioned in a point symmetrical area with respect to the oil separation mechanism (40) and the central shaft (49) of the sealed container (1). Therefore, the compressor can reach the discharge pipe in a region farthest from the oil separation mechanism, contact with one inner wall of the container for a long period and over a large area, and realize high efficiency, improved volumetric efficiency and low oil circulation of motors (20).

Description

Compressor
Technical field
The present invention relates to be provided with the compressor of the oily separating mechanism portion of refrigerant gas separating oil from being discharged by compression mechanical part.
Background technique
In prior art, the compressor using in aircondition, cooling unit etc., the motor part conventionally in housing with compression mechanical part and this compression mechanical part of driving, the refrigerant gas returning from refrigeration cycle is compressed at compression mechanical part, is sent to refrigeration cycle.Conventionally, the refrigerant gas after compression mechanical part compression, carries out coolingly to motor part owing to temporarily flowing through the surrounding of motor, afterwards, be sent to refrigeration cycle (for example,, with reference to patent documentation 1) from being arranged at the discharge pipe arrangement of housing., the refrigerant gas after compression mechanical part compression, discharges to discharging space from exhaust port.Afterwards, refrigerant gas, by being arranged at the path of periphery of frame, is discharged to the top of the motor space between compression mechanical part and motor part.Part of refrigerant gas, after cool motors portion, discharges from discharging pipe arrangement.In addition, other refrigerant gas, by the path forming between motor part and the inwall of housing, be communicated with the motor space of the upper and lower of motor part, after cool motors portion, the gap of rotor and stator by motor part, the motor space that enters the top of motor part, discharges from discharging pipe arrangement.
Look-ahead technique document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 5-44667 communique
Summary of the invention
The problem that invention will solve
But in existing structure, the refrigerant gas of the High Temperature High Pressure after being compressed by compression mechanical part, flows through motor part, so cooled dose of gas-heated of motor part, existence can cause the problem of the Efficiency Decreasing of motor part.
In addition, the Exhaust Gas of high temperature, by being arranged at the path of periphery of frame, flows through the bottom of compression mechanical part, so compression mechanical part is heated, particularly, the refrigerant gas of the low-temperature condition returning from refrigeration cycle, the process that is sent to pressing chamber via suction path is heated.Therefore, enclose moment of pressing chamber in reality, refrigerant gas expands, the problem that causes circulating load to decline due to the expansion of refrigerant gas.
And, if the refrigeration agent of discharging from discharge tube contains too much oil, also there is the problem that cycle performance is worsened.
The present invention produces in order to solve above-mentioned existing issue, and its object is to provide a kind of high efficiency, the raising of volumetric efficiency and compressor of low oil circulation of realizing motor part.
For solving the method for problem
In compressor of the present invention, oily separating mechanism portion has: the cylindric space that makes above-mentioned refrigerant gas convolution; Make the above-mentioned refrigerant gas of discharging from above-mentioned compressor structure portion flow into the inflow portion in above-mentioned cylindric space; To isolate above-mentioned refrigerant gas after above-mentioned oil and pass out to from above-mentioned cylindric space the mouth of sending in space in an above-mentioned container; With with the above-mentioned mouthful relative configuration exhaust port sent, it is discharged a part for isolated above-mentioned oil and above-mentioned refrigerant gas from above-mentioned cylindric space, above-mentioned discharge tube is configured in from the position of the eccentricity of central axis of above-mentioned seal container, and above-mentioned discharge tube be configured in respect to the central shaft of above-mentioned seal container, with the point-symmetric region of above-mentioned oily separating mechanism portion.
The effect of invention
According to the present invention, the refrigerant gas of most of High Temperature High Pressure of sending from oily separating mechanism portion after compression mechanical part compression, is directed to space in a container, discharges from discharge tube.Therefore, the refrigerant gas of most High Temperature High Pressure, can not pass through motor part, so motor part can cooled dose of gas-heated, has realized the high efficiency of motor part.
In addition, according to the present invention, by by the refrigerant gas guiding of most High Temperature High Pressure to space in a container, can suppress the heating of the compression mechanical part being connected with space in another container, so can suppress to suck the heating of refrigerant gas, obtain the high volumetric efficiency in pressing chamber.
In addition, according to the present invention, at the isolated oil of oily separating mechanism portion, be discharged to space in another container together with refrigerant gas, so almost do not have oil to be detained in cylindric space.Therefore, isolated oil, the refrigerant gas that can not circled round in cylindric space blows afloat and sends together with refrigerant gas from sending mouth, can carry out stable oil and separate.And, owing to not having oil to be detained in cylindric space, so can form cylindric space littlely.
In addition, according to the present invention, isolate refrigerant gas after most oil in oily separating mechanism portion and arrive and be positioned at away from the disembark discharge tube in region of structure portion of oil content.Therefore, can contact with a container inner wall face length time and large size, so can effectively reduce the mist of oil that is carried over into compressor outside from discharge tube.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the compressor of embodiments of the present invention 1.
Fig. 2 is the major component amplification sectional view of the compression mechanical part in Fig. 1.
Fig. 3 is the major component amplification sectional view of the compression mechanical part in the compressor of embodiments of the present invention 2.
Fig. 4 is the major component amplification sectional view of the compression mechanical part in the compressor of embodiments of the present invention 3.
Fig. 5 is the major component amplification sectional view of the compression mechanical part in the compressor of embodiments of the present invention 4.
Fig. 6 is the longitudinal section of the compressor of embodiments of the present invention 5.
Fig. 7 is the longitudinal section of the compressor of embodiments of the present invention 6.
Fig. 8 is the top view of the compressor of embodiments of the present invention 6.
The explanation of symbol
1 seal container
2 store oil portions
4 discharge tubes
10 compression mechanical parts
11 main bearing parts
12 fixed scroll
17 exhaust ports
19 bafflers
20 motor part
Space in 31 containers
Space in 32 containers
33 compressing mechanism side spaces
34 store oil side spaces
40 oily separating mechanism portions
41 cylindric spaces
42 inflow portions
43 send mouth
44 exhaust ports
46 send pipe
47 send pipe
48 refrigerant gas convolution parts
49 central shafts
50 gravity axis
51 glass terminals (glass terminal) portion
53 refrigerant gas containing mist of oil
The oil of 54 droplet-like
The metal parts of 55 lid shapes
56 terminal cap
Embodiment
The first invention is a kind of compressor, it is characterized in that: in seal container, there is the compression mechanical part of compression refrigerant gas and the motor part of driving above-mentioned compressor structure portion, by above-mentioned compressor structure portion, by being divided in above-mentioned seal container, in a container, in space and another container space, be provided with the outside discharge tube that above-mentioned refrigerant gas is discharged to above-mentioned seal container from space in an above-mentioned container, in above-mentioned another container, space configures above-mentioned motor part, wherein above-mentioned compressor is also provided with the oily separating mechanism portion of the above-mentioned refrigerant gas separating oil from being discharged by above-mentioned compressor structure portion, above-mentioned oily separating mechanism portion has: the cylindric space that makes above-mentioned refrigerant gas convolution, make the above-mentioned refrigerant gas of discharging from above-mentioned compressor structure portion flow into the inflow portion in above-mentioned cylindric space, to isolate above-mentioned refrigerant gas after above-mentioned oil and pass out to from above-mentioned cylindric space the mouth of sending in space in an above-mentioned container, with with the above-mentioned mouthful relative configuration exhaust port sent, it is discharged a part for isolated above-mentioned oil and above-mentioned refrigerant gas from above-mentioned cylindric space, above-mentioned discharge tube is configured in from the position of the eccentricity of central axis of above-mentioned seal container, and above-mentioned discharge tube be configured in respect to the central shaft of above-mentioned seal container, with the point-symmetric region of above-mentioned oily separating mechanism portion.
According to this structure, the refrigerant gas of most of High Temperature High Pressure of sending from oily separating mechanism portion after compression mechanical part compression, is directed to space in a container, discharges from discharge tube.Therefore, the refrigerant gas of most High Temperature High Pressure, can not pass through motor part, so motor part can cooled dose of gas-heated, has realized the high efficiency of motor part.
In addition, according to this structure, by by space in the refrigerant gas guiding to of a most High Temperature High Pressure container, can suppress the heating of the compression mechanical part being connected with space in another container, so suppress to suck the heating of refrigerant gas, can obtain the high volumetric efficiency in pressing chamber.
In addition, according to this structure, at the isolated oil of oily separating mechanism portion, discharge from being positioned at the exhaust port of sending mouthful relative position together with refrigerant gas, so hardly can retained oil in cylindric space.Therefore, isolated oil, the refrigerant gas that can not circled round in cylindric space blows afloat and sends together with refrigerant gas from sending mouth, can carry out stable oil and separate.And, owing to not having oil to be detained in cylindric space, so can form cylindric space littlely.
In addition, according to this structure, the refrigerant gas of isolating after most oil in oily separating mechanism portion becomes along the stream of the internal face in space in container in space in a container.Therefore, can arrive and be positioned at away from the disembark discharge tube in region of structure portion of oil content, contact with a container inner wall face length time and large size.Thus, promote contact separation effect, can effectively reduce the mist of oil of being taken out of compressor outside from discharge tube.
The second invention is in the first invention, and above-mentioned compressor structure portion has: fixed scroll; The convolution scroll of configuration relative to above-mentioned fixed scroll; With the main bearing parts that the axle that drives above-mentioned convolution scroll carried out to axle supporting, above-mentioned cylindric space is formed at above-mentioned fixed scroll and above-mentioned main bearing parts, and above-mentioned exhaust port is communicated with space in above-mentioned another container.
According to this structure, form oily separating mechanism portion at compression mechanical part, can shorten the path that the refrigerant gas from exhaust port to discharge tube flows through, seal container can miniaturization.
In addition, according to this structure, at the isolated oil of oily separating mechanism portion, be discharged to space in another container together with refrigerant gas, so almost do not have oil to be detained in cylindric space.
The 3rd invention is in the first or second invention, and above-mentioned oily separating mechanism portion is provided with multiple.
According to this structure, there is multiple oily separating mechanism portion, can reduce thus the flow velocity of the refrigeration agent of sending from oily separating mechanism portion, so can reduce the oil of the drop state of taking out of from oily separating mechanism portion, can further reduce from discharge tube and take out of to the oil of compressor outside.
The 4th invention is in the first to the 3rd invention, between above-mentioned oily separating mechanism portion and above-mentioned discharge tube, disposes glass terminal part.
According to this structure, do not separate clean mist of oil and the collision of glass terminal part is adhered to and becomes droplet-like state in oily separating mechanism portion, it can be separated with refrigeration agent thus, so can reduce the oil of taking compressor outside from discharge tube out of.
The 5th invention is in first to fourth invention, as above-mentioned refrigerant gas, uses carbon dioxide.
According to this structure, even if be used as the carbon dioxide of high temperature refrigerant as refrigeration agent, motor can not become high temperature yet, so can suppress the reduction of motor efficiency.
Below, with reference to accompanying drawing, embodiments of the present invention are described.Wherein, the present invention is not limited by this mode of execution.
(mode of execution 1)
Fig. 1 is the longitudinal section of the compressor of embodiments of the present invention 1.As shown in Figure 1, the compressor of present embodiment has the compression mechanical part 10 of compression refrigerant gas and the motor part 20 of portion of drive compression mechanism 10 in seal container 1.
In seal container 1, by compression mechanical part 10, be divided into space 31 and the interior space 32 of another container in a container.And, in another container, in space 32, dispose motor part 20.
In addition, space 32 in another container, is divided into compressing mechanism side space 33 and store oil side space 34 by motor part 20.And, dispose store oil portion 2 in store oil side space 34.
In seal container 1, suction pipe 3 and discharge tube 4 are fixed by welding.Suction pipe 3 and discharge tube 4 lead to the outside of seal container 1, are connected with the parts that form refrigeration cycle.Suction pipe 3 imports refrigerant gas from the outside of seal container 1, discharge tube 4 exports to refrigerant gas from space 31 in a container outside of seal container 1.
Main bearing parts 11, are fixed in seal container 1 by welding, shrunk fit (hot jacket) etc., and axle 5 is carried out to axle supporting.Be fixed with fixed scroll 12 at these main bearing parts 11 use bolts.The convolution scroll 13 engaging with fixed scroll 12, is clipped by main bearing parts 11 and fixed scroll 12.Main bearing parts 11, fixed scroll 12 and convolution scroll 13 form the compression mechanical part 10 of eddy type.
Between convolution scroll 13 and main bearing parts 11, be provided with rotation limting mechanism 14 by cross slip-ring (Oldham ring, Oudan ring) etc.Rotation limting mechanism 14 prevent from the circling round rotation of scroll 13, leads back to vortex rotating part 13 and carries out circular orbit motion.Convolution scroll 13, the eccentric drive by the eccentric axial portion 5a of the upper end setting at axle 5.By this eccentric drive, the pressing chamber 15 forming between fixed scroll 12 and convolution scroll 13, moves from outer circumferential central part, reduces volume and compresses.
Between suction pipe 3 and pressing chamber 15, be formed with and suck path 16.Suck path 16 and be arranged at fixed scroll 12.
At the central part of fixed scroll 12, be formed with the exhaust port 17 of compression mechanical part 10.Be provided with leaf valve 18 at exhaust port 17.
Space 31 sides in a container of fixed scroll 12, are provided with the baffler 19 that covers exhaust port 17 and leaf valve 18.Baffler 19 is isolated exhaust port 17 from space 31 in a container.
Refrigerant gas is inhaled into pressing chamber 15 from suction pipe 3 via sucking path 16.Refrigerant gas after being compressed by pressing chamber 15, from exhaust port 17 to the interior discharge of baffler 19.Leaf valve 18, is pressed off in the time that exhaust port 17 is discharged at refrigerant gas.
Be provided with pump 6 in the lower end of axle 5.The suction port of pump 6, is configured in the store oil portion 2 of the bottom that is arranged at seal container 1.Pump 6 is driven by axle 5.Therefore, the oil of store oil portion 2, irrelevant with pressure condition and running speed, can reliably drink up, can there is not oil-break at slide part.The oil that pump 6 drinks up, by the oily supply hole 7 in axle 5 interior formation, is supplied to compression mechanical part 10.Wherein, before pump 6 sucts oil, or after sucting, use oil strainer from oil, to remove foreign matter, can prevent that foreign matter from sneaking into compression mechanical part 10, can further realize reliability.
Be directed to the oily pressure of compression mechanical part 10, roughly the same with the head pressure of the refrigerant gas of discharging from exhaust port 17, become the back pressure source with respect to convolution scroll 13.Thus, convolution scroll 13, leaves from fixed scroll 12, can part operating stably contiguously.Oil a part because of supply with press or deadweight seek escape place, generally enter eccentric axial portion 5a and convolution scroll 13 embedding part and axle 5 and main bearing parts 11 between bearing portion 8 and be lubricated, afterwards whereabouts, return to store oil portion 2.
Be formed with path 7a in convolution scroll 13, one end of path 7a is at high-pressure area 35 openings, and the other end of path 7a is at back pressure chamber 36 openings.Rotation limting mechanism 14 is disposed at back pressure chamber 36.
Therefore, an oily part of supplying with to high-pressure area 35, by path 7a, enters into back pressure chamber 36.Enter into the oil of back pressure chamber 36, the slide part of lubricated slide part and rotation limting mechanism 14, applies back pressure by back pressure chamber 36 to convolution scroll 13.
Then, use Fig. 1 and Fig. 2, the oily separating mechanism portion of the compressor of mode of execution 1 is described.
Fig. 2 is the amplification sectional view of the major component of the compression mechanical part of Fig. 1.
The compressor of present embodiment, is provided with the oily separating mechanism portion 40 of separating oil the refrigerant gas of discharging from compression mechanical part 10.
Oil separating mechanism portion 40 has: the cylindric space 41 that makes refrigerant gas convolution; Be communicated with in baffler 19 and the inflow portion 42 in cylindric space 41; What be communicated with space 31 in cylindric space 41 and container sends mouthfuls 43; With the exhaust port 44 that is communicated with space 32 in cylindric space 41 and another container.
Cylindric space 41, is made up of the first cylindric space 41a that is formed at fixed scroll 12 and the second cylindric space 41b that is formed at main bearing parts 11.
Inflow portion 42 is communicated with the first cylindric space 41a, and preferably the opening of inflow portion 42 is formed at the upper end inner peripheral surface of the first cylindric space 41a.And inflow portion 42 flow into cylindric space 41 by the refrigerant gas of discharging from compression mechanical part 10 in baffler 19.Inflow portion 42 with respect to cylindric space 41 at tangent direction opening.
Send the upper end side that mouth 43 is formed at cylindric space 41, be formed at least and more lean on space 31 sides in a container than inflow portion 42.Sending mouth 43 is preferably formed in the upper-end surface of the first cylindric space 41a.And, send mouth 43 refrigerant gas after separating oil is passed out to space 31 in a container from cylindric space 41.
Exhaust port 44 is formed at the lower end side in cylindric space 41, is formed at least and more leans on space 32 sides in another container than inflow portion 42.Exhaust port 44 is preferably formed in the lower end surface of the second cylindric space 41b.And exhaust port 44, is discharged to compressing mechanism side space 33 by isolated oil and part of refrigerant gas from cylindric space 41.
At this, the sectional area A that preferably sends mouthfuls 43 opening portion is less than the sectional area C in cylindric space 41, larger than the sectional area B of the opening portion of exhaust port 44.In the case of send mouthfuls 43 the sectional area A of opening portion identical with the sectional area C in cylindric space 41, the swirling flow of the refrigerant gas direction of exhaust port 44 that can not lead, and blowing out from sending mouth 43.In addition,, in the case of the sectional area B of opening portion of exhaust port 44 is identical with the sectional area C in cylindric space 41, the swirling flow of refrigerant gas blows out from exhaust port 44.
In addition,, by making the sectional area A of the opening portion of sending mouth 43 larger than the sectional area B of the opening portion of exhaust port 44, the flow path resistance of sending mouth 43 reduces.Thus, refrigerant gas is compared exhaust port 44 and is more easily flowed to and send mouthfuls 43.As an example, A/B can be set as to 9 left and right.
In present embodiment, implement hole by the peripheral part in fixed scroll 12 and be processed to form the first cylindric space 41a, implement hole by the peripheral part at main bearing parts 11 and be processed to form the second cylindric space 41b.In addition, on scroll wrap (wrap) the opposition side end face of fixed scroll 12, with respect to the first cylindric space 41a, be formed with the groove at tangent direction opening, a part that is covered the groove of the first cylindric space 41a side by baffler 19, forms inflow portion 42 thus.In addition, send mouth 43 and be made up of the hole that is formed at baffler 19, this hole is configured in the opening of the first cylindric space 41a.In addition, exhaust port 44 is made up of the hole that is formed at bearing cap 45, and this hole is configured in the opening of the second cylindric space 41b.
The effect of the oily separating mechanism portion 40 of present embodiment is described below.
Be discharged to the refrigerant gas in baffler 19, through being formed at the inflow portion 42 of fixed scroll 12, be directed to cylindric space 41.Inflow portion 42 with respect to cylindric space 41 at tangent direction opening, so the refrigerant gas of sending from inflow portion 42 flows along the internal face in cylindric space 41, in the inner peripheral surface generation swirling flow in cylindric space 41.This swirling flow becomes the stream going to exhaust port 44.
Refrigerant gas comprises the oil that is supplied to compression mechanical part 10, and between refrigerant gas involution period, the inwall in oil cylindric space 41 because centrifugal force is attached to that proportion is high, separates with refrigerant gas.
The swirling flow occurring at the inner peripheral surface in cylindric space 41 after arriving exhaust port 44, or is turned back near exhaust port 44, becomes by the upward flow at 41 center, cylindric space.
By the refrigerant gas after centrifugal force separate oil, arrive and send mouth 43 by upward flow, pass out to space 31 in a container.Pass out to the refrigerant gas in space 31 in a container, pass out to the outside of seal container 1 from being arranged at the discharge tube 4 in space 31 in a container, be supplied to refrigeration cycle.
In addition,, at the isolated oil in cylindric space 41, pass out to compressing mechanism side space 33 from exhaust port 44 together with a small amount of refrigerant gas.Pass out to the oil in compressing mechanism side space 33, because the wall of seal container 1 and the access of motor part 20 are passed through in deadweight, arrive store oil portion 2.
Pass out to the refrigerant gas in compressing mechanism side space 33, by the gap of compression mechanical part 10, arrive space 31 in a container, pass out to the outside of seal container 1 from discharge tube 4.
The oily separating mechanism portion 40 of present embodiment, sends mouthfuls 43 and is formed at than inflow portion 42 more by space 31 sides in a container, and exhaust port 44 is formed at than inflow portion 42 more by space 32 sides in another container.Therefore, from inflow portion 42 to exhaust port 44, produce swirling flow at the inner peripheral surface in cylindric space 41, from exhaust port 44 to sending mouth 43, produce and the reciprocal stream of swirling flow at the central part in cylindric space 41.Therefore, exhaust port 44 is along with leaving from inflow portion 42, and the convolution number of times of refrigerant gas increases, and the separating effect of oil improves.In addition, the refrigerant gas after convolution, by the central part of swirling flow, so be positioned at than inflow portion 42 more by exhaust port opposition side as long as send mouth 43.,, by making the distance of inflow portion 42 and exhaust port 44 large as much as possible, can improve the effect that oil convolution separates.
In addition, the oily separating mechanism portion 40 of present embodiment, isolated oil is not stored in to space 32 in container, and oil is discharged from exhaust port 44 together with refrigerant gas, so there is the effect to exhaust port 44 directions guiding by the swirling flow of the inner peripheral surface generation in cylindric space 41.
Suppose not form exhaust port 44 in cylindric space 41, oil is trapped in cylindric space 41, and can not produce from exhaust port 44 and guide outside stream into, thus will disappear arriving swirling flow before pasta, or oil can be rolled-up while arriving pasta.In addition, just bring into play oily separation function in order not form exhaust port 44 in cylindric space 41, need to form the sufficient space of oil in reserve.
But, as the oily separating mechanism portion 40 of present embodiment, by oil is discharged from exhaust port 44 together with refrigerant gas, swirling flow can be guided to exhaust port 44, and oil can be not rolled-up.
According to present embodiment, the refrigerant gas of the most High Temperature High Pressure of sending from oily separating mechanism portion 40 after compression mechanical part 10 compression, is directed to space 31 in a container and discharges from discharge tube 4.Therefore, the refrigerant gas of most High Temperature High Pressure, can not pass through motor part 20, so motor part 20 can cooled dose of gas-heated, has realized the high efficiency of motor part 20.
In addition, according to present embodiment, by by space 31 in the refrigerant gas guiding to of a most High Temperature High Pressure container, can suppress the heating of the compression mechanical part 10 being connected with space 32 in another container, so can suppress to suck the heating of refrigerant gas, obtain the high volumetric efficiency in pressing chamber.
In addition, according to present embodiment, at oily separating mechanism portion 40 isolated oil, be discharged to space 32 in another container together with refrigerant gas, so almost do not have oil to be detained in cylindric space 41.Therefore, isolated oil, can not blow afloat and send together with refrigerant gas from sending mouth 43 at the interior refrigerant gas being circled round in cylindric space 41, can carry out stable oil and separate.And, can retained oil in cylindric space 41, so cylindric space 41 can miniaturization.
In addition, according to present embodiment, store oil portion 2 is configured in store oil side space 34, can oil in reserve in compressing mechanism side space 33, so seal container 1 can miniaturization.
In addition, according to present embodiment, dispose the baffler 19 that the exhaust port of compression mechanical part 10 17 is isolated from space 31 in a container, be communicated with in baffler 19 and cylindric space 41 by inflow portion 42, the refrigerant gas after compression mechanical part 10 is compressed can be guided to reliably thus to oily separating mechanism portion 40., all refrigerant gas can be by oily separating mechanism portion 40, so can be from refrigerant gas separating oil effectively.In addition, the refrigerant gas of the most high temperature of discharging from exhaust port 17, can be by space 32 in another container, and is discharged to the outside of seal container 1 from discharge tube 4, so can suppress motor part 20 or compression mechanical part 10 is heated.
In addition, according to present embodiment, be formed at fixed scroll 12 and main bearing parts 11 by cylindric space 41, can shorten the path of flowing through of the refrigerant gas from exhaust port 17 to discharge tube 4, can make seal container 1 miniaturization.
(mode of execution 2)
Fig. 3 is the major component amplification sectional view of the compression mechanical part of the compressor of embodiments of the present invention 2.
The basic structure of present embodiment is identical with Fig. 1, and description thereof is omitted.In addition, the structure identical with the structure of Fig. 1 and Fig. 2 explanation paid with prosign, and description thereof is omitted.
In the present embodiment, implement shoulder hole processing by the peripheral part in fixed scroll 12, form the first cylindric space 41c and send a mouthful 43a.The first cylindric space 41c, from affixed the side end face (scroll wrap side end face) of main bearing parts 11 process the hole not connecting and form.Send a mouthful 43a, from with affixed the side end face (scroll wrap side end face) of main bearing parts 11, or from affixed the opposition side end face (scroll wrap opposition side end face) of main bearing parts 11, connect than the little hole, cross section of the first cylindric space 41c and form.
In addition, implement shoulder hole processing by the peripheral part at main bearing parts 11, form the second cylindric space 41d and exhaust port 44a.The second cylindric space 41d, from affixed (thrust bearing surface) of fixed scroll 12 process the hole not connecting and form.Exhaust port 44a, from affixed (thrust surface) of fixed scroll 12, or from the affixed opposing face (thrust opposing face) of fixed scroll 12 connect the hole less than the cross section of the second cylindric space 41d and form.
In addition, the 42a of inflow portion, by from fixed scroll 12 and affixed opposing faces main bearing parts 11 side end face (scroll wrap opposition side end face), forms and forms at the through hole of tangent direction opening with respect to the first cylindric space 41c.
In present embodiment, the effect of oily separating mechanism portion 40 is identical with mode of execution 1, and identical with effect, the effect of mode of execution 1, description thereof is omitted.
(mode of execution 3)
Fig. 4 is the major component amplification sectional view of the compression mechanical part of the compressor of embodiments of the present invention 3.
The basic structure of present embodiment is identical with Fig. 1, and description thereof is omitted.In addition, the structure identical with the structure of Fig. 1 and Fig. 2 explanation paid with prosign, and description thereof is omitted.
In the present embodiment, in cylindric space 41, be provided with sending of tubular and manage 46.
One end 46a that sends pipe 46 forms and sends mouth 43, and the other end 46b that sends pipe 46 is configured in cylindric space 41.Wherein, in present embodiment, the other end 46b that sends pipe 46 extends in the second cylindric space 41b.
Be formed with tubular space 46c in the periphery of sending pipe 46, inflow portion 42 is at tubular space 46c opening.Be formed with outward extending flange 46d at one end 46a that sends pipe 46.
The refrigerant gas flowing into from inflow portion 42, becomes swirling flow, by tubular space 46c, arrives exhaust port 44 along the inner peripheral surface in cylindric space 41, and adverse current is by 41 center, cylindric space afterwards.Then, flow into and send in pipe 46 from sending pipe 46 the other end 46b, flow out from one end 46a that sends pipe 46.
In present embodiment, the first cylindric space 41e, implements shoulder hole processing and forms at the peripheral part of fixed scroll 12.That is, at the scroll wrap opposition side end face of fixed scroll 12, be formed with the large hole, interior all cross sections than the first cylindric space 41e, in this hole, be accommodated with the flange 46d that sends pipe 46.
As shown in the embodiment, by cylindric space 41 interior tubular is set send pipe 46, for example, in the situation that improving frequency run compressor, also can obtain reliably oily separating effect.
Wherein, send pipe 46 in the situation that being provided with, the axle center in cylindric space 41 with send that to manage 46 axle center consistent very important.
In addition, send pipe 46 in the situation that being provided with, be provided with flange 46d sending pipe 46, this flange 46d is configured in the hole that is formed at cylindric space 41, will send and manage 46 to be fixed on cylindric space 41 very important with baffler 19.
In addition, send the internal diameter sectional area D of pipe 46, larger than the sectional area B of exhaust port 44.Thus, refrigerant gas is compared exhaust port 44 and is more easily flowed to and send mouthfuls 43.As an example, D/B can be set as 9 left and right.
According to present embodiment, by cylindric space 41 interior arrange tubular send pipe 46, can improve the oily separating effect in cylindric space 41.
Send in pipe 46 present embodiment being provided with, the basic role of oily separating mechanism portion 40 is same with mode of execution 1, and identical with effect, effect in mode of execution 1, description thereof is omitted.
(mode of execution 4)
Fig. 5 is the major component amplification sectional view of the compression mechanical part of the compressor of embodiments of the present invention 4.
The basic structure of present embodiment is identical with Fig. 1, and description thereof is omitted.In addition, the structure identical with the structure of Fig. 1 and Fig. 2 explanation paid with prosign, and description thereof is omitted.
In the present embodiment, in cylindric space 41, be provided with sending of tubular and manage 47.Sending of present embodiment manages 47, is integrally formed with baffler 19.
One end 47a that sends pipe 47 forms and sends mouth 43, and the other end 47b that sends pipe 47 is configured in cylindric space 41.Wherein, in present embodiment, the other end 47b that sends pipe 47 extends in the second cylindric space 41b.
Be formed with tubular space 47c in the periphery of sending pipe 47, inflow portion 42 is at tubular space 47c opening.The refrigerant gas flowing into from inflow portion 42, becomes swirling flow, by tubular space 47c, arrives exhaust port 44 along the inner peripheral surface in cylindric space 41, and adverse current is by 41 center, cylindric space afterwards.Then, flow into and send in pipe 47 from sending pipe 47 the other end 47b, flow out from one end 47a that sends pipe 47.
As shown in the embodiment, by cylindric space 41 interior tubular is set send pipe 47, for example, in the situation that improving frequency run compressor, also can obtain reliably oily separating effect.
In addition, send pipe 47 in the situation that being provided with, the axle center in cylindric space 41 with send that to manage 47 axle center consistent very important.
In addition, send pipe 47 in the situation that being provided with, be integrally formed with baffler 19 by sending pipe 47, can send and manage 47 and be fixed on cylindric space 41.
In addition, send pipe 47 internal diameter sectional area D larger than the sectional area B of exhaust port 44.
According to present embodiment, by cylindric space 41 interior arrange tubular send pipe 47, can improve the oily separating effect in cylindric space 41.
Send in pipe 47 present embodiment being provided with, the basic role of oily separating mechanism portion 40 is identical with mode of execution 1, and also identical with effect, the effect of mode of execution 1, description thereof is omitted.
(mode of execution 5)
Fig. 6 is the longitudinal section of the compressor of embodiment of the present invention 5.
The basic structure of present embodiment is identical with Fig. 1, and description thereof is omitted.
In present embodiment, in a container, space 31 disposes the refrigerant gas convolution parts 48 that form cylindric space 41.
Refrigerant gas convolution parts 48, are arranged on the outer circumferential face of baffler 19.Be formed with the 42b of inflow portion at refrigerant gas convolution parts 48, send a mouthful 43b, exhaust port 44b.
The 42b of inflow portion is communicated with in baffler 19 and cylindric space 41, sends a mouthful 43b and is communicated with space 31 in cylindric space 41 and a container, and exhaust port 44b is communicated with space 31 in cylindric space 41 and a container.
The opening of the 42b of inflow portion, is formed at the distolateral inner peripheral surface in cylindric space 41.And the 42b of inflow portion, makes the refrigerant gas of discharging from compression mechanical part 10 flow into cylindric space 41 in baffler 19.The 42b of inflow portion with respect to cylindric space 41 at tangent direction opening.
Send mouthful 43b and be formed at the distolateral of cylindric space 41, be formed at least more distolateral by one than the 42b of inflow portion.Send mouthful 43b and be preferably formed the end face distolateral in of cylindric space 41.And, send a mouthful 43b, from cylindric space 41 to a container in space 31, send the refrigerant gas after separating oil.
Exhaust port 44b, be formed at cylindric space 41 another is distolateral, be formed at least more distolateral by another than the 42b of inflow portion.Exhaust port 44b is preferably formed in the bottom of another distolateral end face in cylindric space 41.And, exhaust port 44b, from cylindric space 41 to a container in space 31, discharge isolated oil and part of refrigerant gas.
At this, send the sectional area A of the opening portion of mouthful 43b, less than the sectional area in cylindric space 41, larger than the sectional area B of the opening portion of exhaust port 44b.
The effect of the oily separating mechanism portion 40 of present embodiment is described below.
Be discharged to the refrigerant gas in baffler 19, process is formed at the 42b of inflow portion of the upper surface of baffler 19, is directed to cylindric space 41.The 42b of inflow portion at tangent direction opening, so the refrigerant gas of sending from the 42b of inflow portion flows along the internal face in cylindric space 41, produces swirling flow at the inner peripheral surface in cylindric space 41 with respect to cylindric space 41.This swirling flow becomes the stream going to exhaust port 44b.
Refrigerant gas comprises the oil that is supplied to compression mechanical part 10, and between refrigerant gas involution period, the inwall in oil cylindric space 41 because centrifugal force is attached to that proportion is high, separates with refrigerant gas.
The swirling flow producing at the inner peripheral surface in cylindric space 41 after arriving exhaust port 44b, or is turned back near exhaust port 44b, becomes by the adverse current at 41 center, cylindric space.
Because of the refrigerant gas after centrifugal force separating oil, because arriving and send a mouthful 43b by the stream at 41 center, cylindric space, be sent space 31 in a container.Pass out to the refrigerant gas in space 31 in a container, pass out to the outside of seal container 1 from being arranged at the discharge tube 4 in space 31 in a container, be supplied to refrigeration cycle.
In addition, at the isolated oil in cylindric space 41, because deadweight secund flows down, exhaust port 44b is formed at the bottom of opposite side end face or the bottom in cylindric space 41, so easily discharge oil.
Isolated oil, with the upper surface that passes out to baffler 19 together with a small amount of refrigerant gas from exhaust port 44b.Pass out to the oil of baffler 19 upper surfaces, because the gap of compression mechanical part 10 is passed through in deadweight, arrive compressing mechanism side space 33 from space 31 in a container, and then via the wall of seal container 1 or the access of motor part 20, arrive store oil portion 2.
The refrigerant gas of sending from exhaust port 44b, passes out to the outside of seal container 1 from being arranged at the discharge tube 4 in space 31 in a container, be supplied to refrigeration cycle.
The oily separating mechanism portion 40 of present embodiment, sends mouthful 43b and is formed at than the 42b of inflow portion more distolateral by cylindric space 41, and exhaust port 44b is formed at more distolateral by another of cylindric space 41 than the 42b of inflow portion.Therefore, from the 42b of inflow portion to exhaust port 44b, produce swirling flow at the inner peripheral surface in cylindric space 41, from exhaust port 44b to sending mouthful 43b, produce and the reciprocal stream of swirling flow at the central part in cylindric space 41.Therefore,, along with exhaust port 44b leaves from the 42b of inflow portion, the convolution number of times of refrigerant gas increases, and has improved oily separating effect.In addition, the refrigerant gas after convolution, by the central part of swirling flow, so be positioned at than the 42b of inflow portion more by exhaust port opposition side as long as send a mouthful 43b.,, by making the distance of the 42b of inflow portion and exhaust port 44b large as much as possible, can improve the effect that oil convolution separates.
In addition, the oily separating mechanism portion 40 of present embodiment, is not stored in isolated oil cylindric space 41, and oil is discharged from exhaust port 44b together with refrigerant gas, so the swirling flow producing at the inner peripheral surface in cylindric space 41, has the effect of the direction of guiding exhaust port 44b.
Suppose not form exhaust port 44b in cylindric space 41, oil is trapped in cylindric space 41, can not produce from exhaust port 44b and guide outside stream into, and swirling flow can be rolled oil.In addition, just bring into play oily separation function in order not form exhaust port 44b in cylindric space 41, need to form the sufficient space of oil in reserve.
But, as the oily separating mechanism portion 40 of present embodiment, by oil is discharged from exhaust port 44b together with refrigerant gas, swirling flow can be guided to exhaust port 44b, and oil can be not rolled-up.
According to present embodiment, can not change compressor axial dimension the separation of circling round.In addition, the convolution increased frequency of refrigerant gas, so can increase cylindric space 41, in more detail, can increase the distance of the 42b of inflow portion and exhaust port 44b.Thus, can maintain compressor itself size there is oily separating mechanism portion 40 in the inside of seal container 1, and can improve oil convolution separating effect.
In addition, according to present embodiment, by the refrigerant gas convolution parts 48 that form cylindric space 41 are configured in to space 31 in a container, can shorten the path of flowing through to the refrigerant gas of discharge tube 4 from exhaust port 17, seal container 1 can miniaturization.
According to present embodiment, the refrigerant gas of the High Temperature High Pressure of sending from oily separating mechanism portion 40 after compression mechanical part 10 compression, is directed to space 31 in a container, discharges from discharge tube 4.Therefore, the refrigerant gas of High Temperature High Pressure,, by mechanism portion 20, so motor part 20 can be because refrigerant gas is heated, has not realized the high efficiency of motor part 20.
In addition, according to present embodiment, by by space 31 in the refrigerant gas guiding to of a High Temperature High Pressure container, can suppress the heating of the compression mechanical part 10 being connected with space 32 in another container, so can suppress to suck the heating of refrigerant gas, can obtain high volumetric efficiency in pressing chamber.
In addition, according to present embodiment, at oily separating mechanism portion 40 isolated oil, be discharged to space 31 in a container together with refrigerant gas, so almost do not have oil to be detained in cylindric space 41.Therefore, isolated oil, can not blow afloat and be sent together with refrigerant gas from sending mouthful 43b at the interior refrigerant gas being circled round in cylindric space 41, can carry out stable oil and separate.And, can retained oil in cylindric space 41, so cylindric space 41 can miniaturization.
In addition, according to present embodiment, store oil portion 2 is configured in store oil side space 34, can oil in reserve in compressing mechanism side space 33, so seal container 1 can miniaturization.
In addition, according to present embodiment, dispose the baffler 19 that the exhaust port of compression mechanical part 10 17 is isolated from space 31 in a container, be communicated with in baffler 19 and cylindric spaces 41 by the 42b of inflow portion, the refrigerant gas after compression mechanical part 10 is compressed can be guided to reliably thus to oily separating mechanism portion 40., all refrigerant gas can be by oily separating mechanism portion 40, so can be from refrigerant gas separating oil effectively.In addition, the high temperature refrigerant gas of discharging from exhaust port 17, can not pass through space 32 in another container, and is discharged to the outside of seal container 1 from discharge tube 4, so can suppress the heating of motor part 20, compression mechanical part 10.
Compressor in the respective embodiments described above, also can arrange 2 above cylindric spaces 41.
In addition, the compressor of the respective embodiments described above, can use carbon dioxide as refrigeration agent.Carbon dioxide is high temperature refrigerant, and in the case of using such high temperature refrigerant, the present invention is more effective.
In addition, while using carbon dioxide as refrigeration agent, use the oil take PAG as main component as oil.The intermiscibility of carbon dioxide and PAG is low, so oily separating effect excellence.
(mode of execution 6)
Fig. 7 is the longitudinal section of the compressor of embodiments of the present invention 6.Fig. 8 is the top view of the compressor of embodiments of the present invention 6.The basic structure of present embodiment is identical with Fig. 1, and description thereof is omitted.In addition, the structure identical with the structure of Fig. 1 and Fig. 2 explanation paid with prosign, and description thereof is omitted.
In the present embodiment, oily separating mechanism portion 40 is provided with three.Each oily separating mechanism portion 40 comprises: for by the cylindric space 41 of oily centrifugation; The inflow portion 42 that the refrigerant gas of oil-containing flows into; With the refrigerant gas after centrifugation is sent send mouthfuls 43.Each cylindric space 41 is configured in main bearing parts 11 and fixed scroll 12.In addition, although in the present embodiment, being provided with three oily separating mechanism portions 40, being not limited to three, for example, can be also two or four.
Discharge tube 4 is configured in from the position of central shaft 49 bias of seal container 1.In addition, discharge tube 4 is also configured in the central shaft with the cylindric space 41 of gravity axis 50(of oily separating mechanism portion 40 with respect to the central shaft 49 of seal container 1) point-symmetric region.Cylindric space 41 and the discharge tube 4 of oil separating mechanism portion 40 configure in the mode of parallel to an axis separately.
Glass terminal part 51 is configured in to be sent between mouth 43 and discharge tube 4.At the metal parts 55 that forms the lid shape in space 31 in a container, welding is fixed with to the side-prominent terminal cap 56 in space 31 in a container.
In order to improve centrifugal separating effect, need to reduce the diameter in cylindric space 41, improve centrifugal force.In the time reducing the diameter in cylindric space 41, need to reduce to send the sectional area of mouth 43.In the time sending mouthfuls 43 sectional area and establish too smallly, can become too fast from the rate of delivery of sending mouthful 43 refrigerant gas of sending, again the oil of isolated droplet-like is once involved in and is sent from cylindric space 41.Therefore, likely make oily separating effect decline.
On the other hand, the in the situation that of disposing cylindric space 41, and only dispose compared with the situation in cylindric space 41 at a place at three places, sending mouthfuls 43 sectional area is three times, and the rate of delivery of refrigerant gas is 1/3rd.Therefore, again the oil of droplet-like is involved in and reduces from sending mouthfuls 43 possibilities that blow afloat, the oil of droplet-like is to the minimizing of sending in space 31 in container.
Most oil is separated in oily separating mechanism portion 40, becomes vaporificly but do not separate clean oil in oily separating mechanism portion 40, arrives space 31 in container together with refrigerant gas., have from being configured in away from the oil content trend that the discharge tube 4 in region of structure portion 40 flows out to the outside of seal container 1 of disembarking in container in space 31 containing the refrigerant gas 53 of mist of oil.And the refrigerant gas 53 that contains mist of oil becomes the stream that internal face is long-time and large size contact edge goes to discharge tube 4 in space 31 in limit and container.Therefore, in container, the internal face in space 31 is attached with mist of oil everywhere, in the moment of oil 54 that becomes droplet-like, because deadweight drops to space 31 in container.
In addition, collide containing the terminal cap 56 of the side-prominent glass terminal part 51 in the major part of the refrigerant gas 53 of mist of oil and space 31 in container, so mist of oil easily becomes droplet-like, can further promote itself and the separating of refrigerant gas.Therefore, except with container in the contact separation effect of internal face in space 31, also obtain colliding separating effect, so can further reduce the outside mist of oil of taking seal container 1 from discharge tube 4 out of.
Fallen oil passes through the gap of compression mechanical part 10 because of deadweight, arrives compressing mechanism side space 33, and then via the wall of seal container 1 or the access of motor part 20, arrive store oil portion 2 from space 31 in container.In the present embodiment, also discharge tube 4 is configured in from the position of central shaft 49 bias of seal container 1, and is configured in the central shaft 49 and oily separating mechanism portion 40 point-symmetric regions with respect to seal container 1.Therefore, the basic role of oily separating mechanism portion 40 is identical with mode of execution 1, and effect, the effect of mode of execution 1 are also identical, so description thereof is omitted.
In addition, in the compressor of present embodiment, configured abreast cylindric space 41 and the discharge tube 4 of oily separating mechanism portion 40, but they also can be not parallel.
In addition, the configuration with multiple oily separating mechanism portion's 40 this point and discharge tube 4 illustrating in present embodiment is also suitable for for mode of execution 2 to mode of execution 5.
In addition, above-mentioned mode of execution 1, to the compressor of mode of execution 6, as refrigeration agent, can use carbon dioxide.Carbon dioxide is high temperature refrigerant, and in the case of using such high temperature refrigerant, the present invention is more effective.
Utilizability in industry
The present invention, is applicable to scroll compressor, rotary type compressor etc., has the compressor of compression mechanical part and motor part in seal container, is specially adapted to use the compressor of high temperature refrigerant.
Claims (according to the modification of the 19th article of treaty)
After 1.(correction) a kind of compressor, it is characterized in that:
In seal container, there is the motor part of compression mechanical part and the described compression mechanical part of driving of compression refrigerant gas,
By described compression mechanical part, by being divided in described seal container, in a container, in space and another container space,
Be provided with the outside discharge tube that described refrigerant gas is discharged to described seal container from space in a described container, in described another container, space configures described motor part, wherein
Described compressor is also provided with the oily separating mechanism portion of described refrigerant gas separating oil from being discharged by described compression mechanical part,
Described oily separating mechanism portion has:
Make the cylindric space of described refrigerant gas convolution;
Make the described refrigerant gas of discharging from described compression mechanical part flow into the inflow portion in described cylindric space;
To isolate described refrigerant gas after described oil and pass out to from described cylindric space the mouth of sending in space in a described container; With
With the described mouthful relative configuration exhaust port of sending, it is discharged a part for isolated described oil and described refrigerant gas from described cylindric space,
Described compression mechanical part has:
Fixed scroll;
The convolution scroll of configuration relative to described fixed scroll; With
To the main bearing parts that drive the axle of described convolution scroll to carry out axle supporting,
Described cylindric space is formed at described fixed scroll and described main bearing parts,
Described exhaust port is communicated with space in described another container,
Described discharge tube is configured in from the position of the eccentricity of central axis of described seal container, and
Described discharge tube be configured in respect to the central shaft of described seal container, with the point-symmetric region of described oily separating mechanism portion.
2.(deletes)
3. compressor as claimed in claim 1 or 2, is characterized in that:
Described oily separating mechanism portion is provided with multiple.
4. the compressor as described in any one in claim 1~3, is characterized in that: between described oily separating mechanism portion and described discharge tube, dispose glass terminal part.
5. the compressor as described in any one in claim 1~4, is characterized in that: as described refrigerant gas, use carbon dioxide.

Claims (5)

1. a compressor, is characterized in that:
In seal container, there is the motor part of compression mechanical part and the described compression mechanical part of driving of compression refrigerant gas,
By described compression mechanical part, by being divided in described seal container, in a container, in space and another container space,
Be provided with the outside discharge tube that described refrigerant gas is discharged to described seal container from space in a described container, in described another container, space configures described motor part, wherein
Described compressor is also provided with the oily separating mechanism portion of described refrigerant gas separating oil from being discharged by described compression mechanical part,
Described oily separating mechanism portion has:
Make the cylindric space of described refrigerant gas convolution;
Make the described refrigerant gas of discharging from described compression mechanical part flow into the inflow portion in described cylindric space;
To isolate described refrigerant gas after described oil and pass out to from described cylindric space the mouth of sending in space in a described container; With
With the described mouthful relative configuration exhaust port of sending, it is discharged a part for isolated described oil and described refrigerant gas from described cylindric space,
Described discharge tube is configured in from the position of the eccentricity of central axis of described seal container, and
Described discharge tube be configured in respect to the central shaft of described seal container, with the point-symmetric region of described oily separating mechanism portion.
2. compressor as claimed in claim 1, is characterized in that:
Described compression mechanical part has:
Fixed scroll;
The convolution scroll of configuration relative to described fixed scroll; With
To the main bearing parts that drive the axle of described convolution scroll to carry out axle supporting,
Described cylindric space is formed at described fixed scroll and described main bearing parts,
Described exhaust port is communicated with space in described another container.
3. compressor as claimed in claim 1 or 2, is characterized in that:
Described oily separating mechanism portion is provided with multiple.
4. the compressor as described in any one in claim 1~3, is characterized in that:
Between described oily separating mechanism portion and described discharge tube, dispose glass terminal part.
5. the compressor as described in any one in claim 1~4, is characterized in that:
As described refrigerant gas, use carbon dioxide.
CN201280043364.7A 2011-11-10 2012-11-08 Compressor Active CN103782033B (en)

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