WO2020170886A1 - Compresseur fermé hermétiquement - Google Patents

Compresseur fermé hermétiquement Download PDF

Info

Publication number
WO2020170886A1
WO2020170886A1 PCT/JP2020/005162 JP2020005162W WO2020170886A1 WO 2020170886 A1 WO2020170886 A1 WO 2020170886A1 JP 2020005162 W JP2020005162 W JP 2020005162W WO 2020170886 A1 WO2020170886 A1 WO 2020170886A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
electric motor
refrigerant
lubricating oil
compression mechanism
Prior art date
Application number
PCT/JP2020/005162
Other languages
English (en)
Japanese (ja)
Inventor
努 昆
里　和哉
隆司 東田
昭徳 福田
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN202080004577.3A priority Critical patent/CN112585357B/zh
Priority to JP2021501877A priority patent/JP7033755B2/ja
Publication of WO2020170886A1 publication Critical patent/WO2020170886A1/fr

Links

Images

Classifications

    • 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
    • F04C18/02—Rotary-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
    • 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

Definitions

  • the present disclosure relates to a hermetic compressor used for a cooling device such as an air conditioner and an air conditioner and a refrigerator, and a refrigerating device such as a heat pump hot water supply device.
  • a hermetic compressor used for a cooling device, a hot water supply device, etc. compresses the refrigerant gas returned from the refrigeration cycle by the compression mechanism section and sends it to the refrigeration cycle. At that time, lubricating oil is supplied to the compression mechanism portion, and the sliding portion is lubricated. The oil that lubricates the sliding portion is discharged into the compressor and returns to the oil storage section at the bottom of the compressor.
  • the refrigerant gas is in a turbulent state inside the hermetic compressor. Therefore, the amount of lubricating oil mixed with the refrigerant gas and flowing out to the refrigeration cycle together with the compressed refrigerant increases.
  • the conventional hermetic compressor discharges the lubricating oil from the compression mechanism section to the lower side of the electric motor through the oil discharge pipe, and It is configured to return to the oil storage section (see, for example, Patent Document 1).
  • FIG. 6 is a cross-sectional view showing the configuration of the hermetic compressor described in Patent Document 1.
  • the hermetic compressor shown in FIG. 6 is a high pressure hermetic compressor. Oil lubricates the sliding parts such as the meshing part of the fixed scroll 101 and the orbiting scroll 102 of the compression mechanism part 100 and the part between the rotating shaft 103 and the bearing member 104. Oil is supplied through an oil passage 106 in a rotary shaft 103 that drives the orbiting scroll 102.
  • the lubricating oil after lubricating the sliding parts of the compression mechanism 100 is discharged into the closed container 108 through the oil drain passage 107 provided in the bearing member 104.
  • An oil drain pipe 109 is connected to the oil drain passage 107.
  • the oil drain pipe 109 is passed through one of the cutout recesses 112 provided on the outer periphery of the stator 111 of the electric motor unit 110. As a result, the oil returns to the oil storage section 113 at the bottom of the compressor below the electric motor section 110.
  • the oil discharged from the oil discharge passage 107 is discharged into the space 114 between the compression mechanism 100 and the electric motor 110 in the closed container 108, and the turbulent flow in the space 114 is generated. Mixing with the refrigerant can be suppressed. Therefore, the amount of lubricating oil flowing from the discharge pipe 115 to the refrigeration cycle can be reduced.
  • Such a configuration is also applied to a low-pressure hermetic compressor, and the amount of lubricating oil flowing out to the refrigeration cycle is reduced.
  • the present disclosure provides a highly efficient hermetic compressor that realizes a reduction in the amount of lubricating oil outflow without causing a reduction in the efficiency of the electric motor.
  • the present disclosure includes a closed container having an oil storage part for storing lubricating oil, an electric motor part provided in the closed container, a compression mechanism part disposed above the electric motor part through a space part, and A hermetic compressor provided with a suction pipe for sucking a refrigerant into the space between the electric motor unit and the compression mechanism unit, and a discharge pipe for discharging the refrigerant compressed by the compression mechanism unit to the outside. is there.
  • the compression mechanism section has a fixed scroll and a shaft cylinder section, and an orbiting scroll that meshes with the fixed scroll to form a compression chamber; and the refrigerant sucked into the space section is sucked into the compression chamber.
  • a refrigerant inlet provided in the fixed scroll, and an eccentric shaft portion, and a rotating shaft for orbiting the orbiting scroll by fitting the eccentric shaft portion into the shaft cylinder portion of the orbiting scroll. I have it.
  • the compression mechanism portion supports the fixed scroll and the orbiting scroll, and has a bearing member that has a bearing portion that rotatably supports the rotation shaft, and a first bearing portion of the bearing member and the rotation shaft.
  • Lubrication for supplying the lubricating oil from the oil reservoir to a fitting portion and a sliding portion including a second fitting portion between the shaft cylinder portion of the orbiting scroll and the eccentric shaft portion of the rotating shaft. And an oil passage.
  • the bearing member has a plurality of protruding piece portions extending in the outer peripheral direction, an oil discharge passage for discharging the lubricating oil after lubricating the sliding portion, and an oil discharge pipe connected to the oil discharge passage. , Is fixed to the inner peripheral surface of the closed container.
  • the oil drain passage and the oil drain pipe are provided in a recess between the plurality of projecting pieces located first with respect to the rotation direction of the electric motor section from the refrigerant suction port of the fixed scroll.
  • the oil drain pipe opens in the vicinity of the upper end of the electric motor unit facing the space of the closed container.
  • the lubricating oil is directly discharged from the oil drain pipe to the upper end portion of the electric motor section, that is, the space between the electric motor section and the compression mechanism section. Is the most upstream side of the refrigerant flow that swirls with the rotation of.
  • the refrigerant mixed with the lubricating oil from the oil discharge pipe expands in a plurality of recesses between the protruding pieces of the bearing member until it reaches a refrigerant inlet of the fixed scroll as a swirling flow. And disturb the flow.
  • the lubricating oil in the refrigerant efficiently adheres to and separates from the inner peripheral surface of the closed container and the coil end of the electric motor section. Therefore, the amount of lubricating oil discharged to the outside can be reduced. That is, the outflow amount of the lubricating oil can be reduced without lowering the efficiency of the electric motor.
  • the outflow amount of the lubricating oil can be reduced without causing the efficiency of the electric motor to decrease, so that a highly efficient hermetic compressor can be provided.
  • FIG. 1 is a cross-sectional view of a hermetic compressor according to a first embodiment of the present disclosure as seen from a side.
  • FIG. 2 is an enlarged cross-sectional view showing a main part of the hermetic compressor.
  • FIG. 3 is a plan view showing the inside of the hermetic compressor seen from above the fixed scroll.
  • FIG. 4 is a plan view showing the inside of the hermetic compressor seen from above the bearing member.
  • FIG. 5 is an enlarged cross-sectional view showing the main parts of the hermetic compressor according to the second embodiment of the present disclosure.
  • FIG. 6 is a cross-sectional view showing the configuration of the hermetic compressor described in Patent Document 1.
  • the present disclosure includes a closed container having an oil storage part for storing lubricating oil, an electric motor part provided in the closed container, a compression mechanism part disposed above the electric motor part through a space part, and A hermetic compressor provided with a suction pipe for sucking a refrigerant into the space between the electric motor unit and the compression mechanism unit, and a discharge pipe for discharging the refrigerant compressed by the compression mechanism unit to the outside. is there.
  • the compression mechanism section has a fixed scroll and a shaft cylinder section, and an orbiting scroll that meshes with the fixed scroll to form a compression chamber; and the refrigerant sucked into the space section is sucked into the compression chamber.
  • a refrigerant inlet provided in the fixed scroll, and an eccentric shaft portion, and a rotating shaft for orbiting the orbiting scroll by fitting the eccentric shaft portion into the shaft cylinder portion of the orbiting scroll. I have it.
  • the compression mechanism portion supports the fixed scroll and the orbiting scroll, and has a bearing member that has a bearing portion that rotatably supports the rotation shaft, and a first bearing portion of the bearing member and the rotation shaft.
  • Lubrication for supplying the lubricating oil from the oil reservoir to a fitting portion and a sliding portion including a second fitting portion between the shaft cylinder portion of the orbiting scroll and the eccentric shaft portion of the rotating shaft. And an oil passage.
  • the bearing member has a plurality of protruding piece portions extending in the outer peripheral direction, an oil discharge passage for discharging the lubricating oil after lubricating the sliding portion, and an oil discharge pipe connected to the oil discharge passage. , Is fixed to the inner peripheral surface of the closed container.
  • the oil drain passage and the oil drain pipe are provided in a recess between the plurality of projecting pieces located first with respect to the rotation direction of the electric motor section from the refrigerant suction port of the fixed scroll.
  • the oil drain pipe opens in the vicinity of the upper end of the electric motor unit facing the space of the closed container.
  • the lubricating oil is directly discharged from the oil drain pipe to the upper end portion of the electric motor section, that is, the space between the electric motor section and the compression mechanism section. Is the most upstream side of the refrigerant flow that swirls with the rotation of. Then, the refrigerant mixed with the lubricating oil from the oil discharge pipe becomes a plurality of recesses formed between the protruding pieces of the bearing member before it reaches a refrigerant inlet of the fixed scroll as a swirling flow. Touch the place.
  • the refrigerant mixed with the lubricating oil from the oil discharge pipe swirls in the space between the electric motor section and the compression mechanism section and reaches the refrigerant suction port of the fixed scroll before the protruding piece of the bearing member is reached. It expands and disturbs the flow at the multiple recesses between the parts.
  • the refrigerant mixed with the lubricating oil efficiently adheres to the inner peripheral surface of the closed container facing the concave portion, the coil end of the electric motor section, and the like, and is separated into the refrigerant and the lubricating oil. This makes it possible to reduce the amount of lubricating oil that is sucked into the compression chamber from the refrigerant suction port while being mixed in the refrigerant, is compressed, and is discharged to the outside.
  • the opening of the oil drain pipe may be located near the coil end of the electric motor section.
  • the lubricating oil discharged from the oil drain pipe can be efficiently attached to the coil end and removed. Therefore, the amount of circulation discharged to the outside can be more effectively suppressed, and a highly efficient hermetic compressor can be realized.
  • the opening of the oil drain pipe may be located below the coil end of the electric section near the end surface of the stator.
  • the lubricating oil from the oil discharge pipe is released to a place that is less affected by the swirling refrigerant flow generated in the space between the electric motor section and the compression mechanism section. Therefore, the amount of lubricating oil mixed in the refrigerant can be effectively suppressed, the amount of lubricating oil released to the outside can be further effectively reduced, and a highly efficient hermetic compressor can be realized.
  • FIG. 1 is a cross-sectional view of a hermetic compressor according to a first embodiment of the present disclosure as seen from a side
  • FIG. 2 is an enlarged cross-sectional view showing a main part of the hermetic compressor
  • 3 is a plan view showing the inside of the hermetic compressor seen from above the fixed scroll
  • FIG. 4 is a plan view showing the inside of the hermetic compressor seen from above the bearing member.
  • a hermetic compressor 50 includes a hermetic container 1, an electric motor unit 2 provided in the hermetic container 1, and a space 3 above the electric motor unit 2 via a space 3.
  • the compression mechanism section 4 is provided.
  • the compression mechanism section 4 is driven by the rotating shaft 5 of the electric motor section 2.
  • the airtight container 1 is provided with a suction pipe 6 (see FIGS. 3 and 4) for sucking the refrigerant from the refrigeration cycle in a space 3 between the electric motor unit 2 and the compression mechanism unit 4.
  • a discharge pipe 7 that discharges the compressed refrigerant during the refrigeration cycle is provided in the space above the compression mechanism 4.
  • An oil reservoir 8 for holding oil for lubrication is formed at the bottom of the closed container 1.
  • the electric motor section 2 is composed of a stator 9 and a rotor 10.
  • the stator 9 is fixed to the inner peripheral surface of the closed container 1 by shrink fitting, welding or the like.
  • the rotor 10 is fixed to the rotary shaft 5 and rotates together with the rotary shaft 5.
  • a plurality of cutout recesses 9a for returning the lubricating oil to the oil storage portion 8 are formed at equal intervals as viewed in the rotation axis direction.
  • the compression mechanism section 4 includes a bearing member 11 fixed in the closed container 1, a fixed scroll 12 arranged on the bearing member 11, and an orbiting scroll 13 arranged below the fixed scroll 12.
  • the fixed spiral wrap 12a of the fixed scroll 12 and the orbiting spiral wrap 13a of the orbiting scroll 13 are meshed with each other, and the compression chamber 14 is formed between them.
  • a refrigerant suction port 15 is provided at a proper position on the outer circumference of the fixed scroll 12, in this example, a portion facing the suction pipe 6.
  • the hermetic compressor 50 is a low-pressure hermetic compressor in which the low-pressure refrigerant in the space 3 sucked through the suction pipe 6 is sucked into the compression chamber 14.
  • the opening of the suction pipe 6 is provided with a cover 16 that covers the opening front surface, upper surface, and both side surfaces of the opening.
  • the refrigerant is sucked into the space 3 through the opening on the lower surface of the cover 16.
  • the refrigerant is sucked into the compression chamber 14 from the refrigerant suction port 15 while swirling in the space 3 as the rotor 10 of the electric motor unit 2 rotates.
  • the bearing member 11 is provided with a plurality of projecting piece portions 11a, 11b, 11c, 11d extending in the outer peripheral direction, and each projecting piece portion is formed in the closed container 1 at the X portion. It is welded and fixed to the peripheral surface.
  • a plurality of recesses 17a, 17b, 17c, 17d facing the space 3 in which the low-pressure refrigerant sucked from the suction pipe 6 swirls are formed between each of the plurality of protruding piece portions 11a, 11b, 11c, 11d.
  • the bearing member 11 that fixes the fixed scroll 12 of the compression mechanism unit 4 supports the rotary shaft 5 by the bearing unit 19, as shown in FIG.
  • the bearing member 11 supports the orbiting scroll 13 in a state in which the orbiting scroll 13 is capable of orbiting by loosely fitting a shaft cylinder portion 21 formed on the bottom surface of the orbiting scroll 13 into a boss portion 20 above the bearing portion 19.
  • the eccentric shaft portion 5a at the upper end of the rotary shaft 5 pivotally supported by the bearing member 11 is fitted into the shaft cylinder portion 21 of the orbiting scroll 13.
  • the rotary shaft 5 is configured to cause the orbiting scroll 13 which is restrained to rotate to orbit.
  • the compression chamber 14 formed between the fixed scroll 12 and the orbiting scroll 13 moves from the outer peripheral side toward the center while reducing the volume.
  • the refrigerant gas is sucked from the space 3 through the refrigerant suction port 15, is closed in the compression chamber 14, and is then compressed.
  • the refrigerant gas that has reached a predetermined pressure pushes up the valve 23 from the discharge port 22 at the center of the fixed scroll 12, is discharged into the high-pressure space 24, and is discharged from the discharge pipe 7 to the refrigeration cycle.
  • a centrifugal pump 25 is provided at the lower end of the rotary shaft 5 that orbits the orbiting scroll 13.
  • the suction port of the centrifugal pump 25 is arranged so as to exist in the lubricating oil of the oil storage section 8.
  • the centrifugal pump 25 operates simultaneously with the operation of the compressor to move the lubricating oil in the oil reservoir 8 provided at the bottom of the closed container 1 upward from the suction port along the paddle 30 by the rotation of the rotating shaft 5. Pump up.
  • the centrifugal pump 25 passes the lubricating oil through the lubricating oil passage 26 penetrating the inside of the rotary shaft 5 to the fitting portion of the bearing member 11 between the bearing portion 19 and the rotary shaft 5 and the eccentric shaft portion 5 a. And a sliding portion such as a fitting portion with the shaft cylinder portion 21 of the orbiting scroll 13.
  • the lubricating oil that lubricates the sliding portion is discharged from the boss portion 20 of the bearing member 11 to the oil storage portion 8.
  • the boss portion 20 of the bearing member 11 is lubricated with a bearing portion 19 of the bearing member 11 and a sliding portion such as a fitting portion between the eccentric shaft portion 5a of the rotary shaft 5 and the shaft cylinder portion 21 of the orbiting scroll 13.
  • An oil discharge passage 27 for discharging the oil afterward is provided.
  • the oil drain passage 27 is a space portion 3 between the electric motor portion 2 and the compression mechanism portion 4, and is opened in a recess 17a formed between the protruding piece portions 11a and 11b of the bearing member 11. It is provided. To the oil drain passage 27, an oil drain pipe 28 that is bent downward in a substantially L shape toward the oil storage portion 8 is connected.
  • the oil drain passage 27 and the oil drain pipe 28 extend from the refrigerant suction port 15 provided in the fixed scroll 12 with respect to the rotation direction of the rotor 10 of the electric motor unit 2 to the first recess 17a. It is provided to be located in. That is, the oil drain passage 27 and the oil drain pipe 28 are provided so as to be located in the recess 17a between the protruding piece portions 11a and 11b. As shown in FIG. 2, the oil drain pipe 28 opens in the vicinity of the coil end 29 of the electric motor unit 2 facing the space 3 between the electric motor unit 2 and the compression mechanism unit 4.
  • the refrigerant sucked from the suction pipe 6 into the space 3 of the closed container 1 swirls in the space 3 and is sucked into the compression chamber 14 from the refrigerant suction port 15 of the fixed scroll 12 and compressed. Then, the refrigerant pushes up the valve 23, is discharged into the upper space in the closed container 1, and is discharged from the discharge pipe 7 to the external refrigeration cycle.
  • the oil after lubricating the sliding portion passes through the boss portion 20 of the bearing member 11, the oil drain passage 27, the oil drain pipe 28, and the space portion between the electric motor portion 2 and the compression mechanism portion 4. It is discharged in the vicinity of the coil end 29 of the electric motor unit 2 facing the motor unit 3. Then, the oil returns to the oil storage section 8 at the bottom of the closed container 1 through the notch recess 9a provided on the outer periphery of the stator 9 of the electric motor section 2.
  • the lubricating oil is directly discharged from the oil drain pipe 28 to the upper end portion of the electric motor unit 2, that is, the space 3 between the electric motor unit 2 and the compression mechanism unit 4.
  • the position where the lubricating oil is discharged is the most upstream side of the flow of the refrigerant that swirls as the rotor 10 of the electric motor unit 2 rotates. Therefore, the distance in which the refrigerant mixed with the lubricating oil discharged from the oil discharge pipe 28 becomes a swirling flow and reaches the refrigerant suction port 15 of the fixed scroll 12 becomes long.
  • the refrigerant mixed with the lubricating oil from the oil discharge pipe 28 swirls in the space 3 between the electric motor section 2 and the compression mechanism section 4 and reaches the refrigerant suction port 15 of the fixed scroll 12 in a time period.
  • the plurality of recesses 17b, 17c, 17d volume-expand to disturb the flow.
  • the refrigerant mixed with the lubricating oil efficiently adheres to the inner peripheral surface of the closed casing 1 facing the portions of the plurality of recesses 17b, 17c, 17d, the coil end 29 of the electric motor unit 2, etc. And the refrigerant are separated. Therefore, it is possible to reduce the amount of lubricating oil that is sucked into the compression chamber 14 from the refrigerant suction port 15 while being mixed in the refrigerant, is compressed, and is discharged to the outside.
  • the outflow amount of the lubricating oil can be reduced without lowering the efficiency of the electric motor section 2 and a highly efficient compressor can be realized.
  • the oil drain pipe 28 opens near the coil end 29 of the electric motor unit 2.
  • the lubricating oil released from the oil drain pipe 28 can be efficiently attached to the coil ends 29 and separated from the refrigerant. Therefore, the circulation amount of the lubricating oil discharged to the outside can be more effectively suppressed, and a highly efficient hermetic compressor can be realized. Further, since the tip of the oil drain pipe 28 is opened in the vicinity of the coil end 29 of the electric motor unit 2, assembly is facilitated and productivity can be improved.
  • FIG. 5 is an enlarged cross-sectional view showing the main parts of the hermetic compressor according to the second embodiment of the present disclosure.
  • the hermetic compressor 150 of the present embodiment is configured by opening the oil drain pipe 128 below the coil end 29 of the electric motor unit 2 and in the vicinity of the end surface of the stator 9.
  • the lubricating oil from the oil discharge pipe 128 is discharged to a place where it is unlikely to be affected by the swirling refrigerant flow generated in the space 3 between the electric motor unit 2 and the compression mechanism unit 4, and therefore is mixed in the refrigerant.
  • the amount of lubricating oil can be effectively suppressed. Therefore, the amount of lubricating oil flowing out can be reduced more effectively, and a highly efficient hermetic compressor can be realized.
  • hermetic compressor according to the present disclosure has been described above with reference to the embodiment, the present disclosure is not limited to these.
  • the bearing member 11 has four recesses 17a, 17b, 17c, and 17d provided as an example, the present invention is not limited to this configuration.
  • the number of recesses may be smaller or larger than four.
  • protruding piece portions 11a, 11b, 11c, 11d forming the recesses 17a, 17b, 17c, 17d are fixed to the inner peripheral surface of the closed container 1 by shrink fitting or welding.
  • the configuration is not limited to this.
  • protrusion pieces 11a, 11b, 11c, and 11d are provided, only a part of the protrusion pieces may be used to fix the inner periphery of the closed container 1.
  • the outflow amount of lubricating oil can be reduced without causing a decrease in the efficiency of the electric motor, so that a highly efficient hermetic compressor can be realized. Therefore, it can be widely used in various devices utilizing the refrigeration cycle and is useful.

Landscapes

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

Abstract

L'invention concerne un compresseur fermé hermétiquement, pourvu d'un récipient fermé hermétiquement (1), d'une unité à moteur électrique, d'une unité à mécanisme de compression, d'un tuyau d'aspiration (6) permettant d'aspirer un fluide frigorigène, et d'un tuyau d'évacuation permettant d'évacuer vers l'extérieur le fluide frigorigène comprimé par l'unité à mécanisme de compression. L'unité à mécanisme de compression comprend une volute fixe, une volute orbitale, un orifice d'entrée d'aspiration de fluide frigorigène, un arbre rotatif, un élément de palier (11) et un passage d'huile de lubrification permettant de fournir de l'huile de lubrification à des parties coulissantes. L'élément de palier (11) comprend une pluralité de parties formant des pièces en saillie (11a, 11b, 11c, 11d), s'étendant selon une direction circonférentielle externe, et comprend un passage d'évacuation d'huile (27) et un tuyau d'évacuation d'huile (28) permettant d'évacuer l'huile de lubrification. Le passage d'évacuation d'huile (27) et le tuyau d'évacuation d'huile (28) sont disposés dans un évidement (17a, 17b, 17c, 17d) entre la pluralité de parties formant des pièces en saillie (11a, 11b, 11c, 11d) positionnées d'abord à partir de l'orifice d'entrée d'aspiration de fluide frigorigène, suivant le sens de rotation de l'unité à moteur électrique. Le tuyau d'évacuation d'huile (28) s'ouvre au voisinage d'une extrémité supérieure de l'unité à moteur électrique, faisant face à un espace du récipient fermé hermétiquement (1).
PCT/JP2020/005162 2019-02-21 2020-02-10 Compresseur fermé hermétiquement WO2020170886A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080004577.3A CN112585357B (zh) 2019-02-21 2020-02-10 密闭型压缩机
JP2021501877A JP7033755B2 (ja) 2019-02-21 2020-02-10 密閉型圧縮機

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019028984 2019-02-21
JP2019-028984 2019-02-21

Publications (1)

Publication Number Publication Date
WO2020170886A1 true WO2020170886A1 (fr) 2020-08-27

Family

ID=72144589

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/005162 WO2020170886A1 (fr) 2019-02-21 2020-02-10 Compresseur fermé hermétiquement

Country Status (3)

Country Link
JP (1) JP7033755B2 (fr)
CN (1) CN112585357B (fr)
WO (1) WO2020170886A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216278499U (zh) 2021-03-31 2022-04-12 丹佛斯（天津）有限公司 油管安装组件和涡旋压缩机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07158569A (ja) * 1993-12-09 1995-06-20 Mitsubishi Electric Corp スクロール流体機械
JP2001003884A (ja) * 1999-06-21 2001-01-09 Mitsubishi Heavy Ind Ltd スクロール型流体機械
US20060045761A1 (en) * 2004-08-26 2006-03-02 Oo Chong Y Oil return tube aligned over motor protector in scroll compressor
WO2017168673A1 (fr) * 2016-03-31 2017-10-05 三菱電機株式会社 Compresseur à spirale et dispositif à cycle de réfrigération

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3264038B2 (ja) * 1993-04-30 2002-03-11 松下電器産業株式会社 気体圧縮機
US6386840B1 (en) * 2000-02-04 2002-05-14 Scroll Technologies Oil return for reduced height scroll compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07158569A (ja) * 1993-12-09 1995-06-20 Mitsubishi Electric Corp スクロール流体機械
JP2001003884A (ja) * 1999-06-21 2001-01-09 Mitsubishi Heavy Ind Ltd スクロール型流体機械
US20060045761A1 (en) * 2004-08-26 2006-03-02 Oo Chong Y Oil return tube aligned over motor protector in scroll compressor
WO2017168673A1 (fr) * 2016-03-31 2017-10-05 三菱電機株式会社 Compresseur à spirale et dispositif à cycle de réfrigération

Also Published As

Publication number Publication date
CN112585357B (zh) 2023-01-06
JPWO2020170886A1 (ja) 2021-09-13
JP7033755B2 (ja) 2022-03-11
CN112585357A (zh) 2021-03-30

Similar Documents

Publication Publication Date Title
JP6300829B2 (ja) 回転式圧縮機
JP2007170253A (ja) スクロール圧縮機
JP6689414B2 (ja) 多段スクロール圧縮機
KR20190129372A (ko) 개선된 랩 구조를 구비한 압축기
JP6554926B2 (ja) スクロール圧縮機
WO2020170886A1 (fr) Compresseur fermé hermétiquement
JP2003042080A (ja) 密閉型スクロール圧縮機
JP2009228441A (ja) スクロール圧縮機
JP2005002886A (ja) スクロール圧縮機
JP4690516B2 (ja) スクロール型流体機械
JP6143862B2 (ja) スクロール圧縮機及びこれを用いた空気調和機
JP7246479B2 (ja) スクロール圧縮機
JP4848844B2 (ja) 電動圧縮機
JP6074620B2 (ja) 圧縮機
JP2020045845A (ja) 密閉型電動圧縮機
WO2015125304A1 (fr) Compresseur
JP5114708B2 (ja) 密閉形スクロール圧縮機
JP2005140070A (ja) スクロール圧縮機
JP2013185531A (ja) 圧縮機
CN114222861B (zh) 涡旋压缩机
JPWO2018186203A1 (ja) スクロール圧縮機
WO2017115559A1 (fr) Compresseur à volute
WO2017141309A1 (fr) Compresseur rotatif
JP2016151177A (ja) スクロール圧縮機
JPH1182340A (ja) 横置型スクロールコンプレッサ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20759665

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021501877

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20759665

Country of ref document: EP

Kind code of ref document: A1