WO2008001639A1 - compresseur - Google Patents

compresseur Download PDF

Info

Publication number
WO2008001639A1
WO2008001639A1 PCT/JP2007/062241 JP2007062241W WO2008001639A1 WO 2008001639 A1 WO2008001639 A1 WO 2008001639A1 JP 2007062241 W JP2007062241 W JP 2007062241W WO 2008001639 A1 WO2008001639 A1 WO 2008001639A1
Authority
WO
WIPO (PCT)
Prior art keywords
scroll member
orbiting scroll
oil supply
orbiting
pressure part
Prior art date
Application number
PCT/JP2007/062241
Other languages
English (en)
Japanese (ja)
Inventor
Akiyoshi Higashiyama
Original Assignee
Sanden Corporation
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 Sanden Corporation filed Critical Sanden Corporation
Priority to EP07767139.4A priority Critical patent/EP2034187B1/fr
Publication of WO2008001639A1 publication Critical patent/WO2008001639A1/fr

Links

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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • 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
    • F04C18/0207—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 both members having co-operating elements in spiral form
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0253—Details concerning the base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • F04C2210/261—Carbon dioxide (CO2)

Definitions

  • the present invention relates to a compressor used in an air conditioner, a cooling device, a hot water supply device, or the like that constitutes a refrigeration cycle or a heat pump cycle.
  • a fixed scroll member fixed to a housing and provided with a spiral body on one end surface of the end plate, and provided to face the fixed scroll member, the fixed scroll of the end plate is provided.
  • An orbiting scroll member provided with a spiral body on the member side, a drive shaft for orbiting the orbiting scroll member on a predetermined circular path, and provided on the opposite surface side of the orbiting scroll member spiral body to rotate the drive shaft
  • a bearing frame that is freely supported, and a back pressure chamber provided between the orbiting scroll member and the bearing frame is divided into a high-pressure portion located in the radial center and a low-pressure portion located radially outside.
  • An annular partition member and an orbiting scroll member are provided on the orbiting scroll member, and the high pressure portion and the low pressure portion are communicated at a predetermined orbiting position of the orbiting scroll member.
  • Which oil with an oil supply passage can flow to the low pressure portion is known (for example, see Patent Document 1).
  • Patent Document 1 Japanese Patent Laid-Open No. 2006-37896
  • an oil supply channel is formed inside the end plate of the orbiting scroll member by making a hole in a straight line from the outside of the orbiting scroll member with a tool such as a drill. is doing. Further, when forming an oil supply passage having a bend in the orbiting scroll member, a plurality of linear holes are formed from the outside of the orbiting scroll member, and the respective holes are connected to form an oil supply passage. . For this reason, in order to form the oil supply flow path, an operation of drilling holes or an operation of filling unused holes occurs, which may increase the number of processing steps and increase the manufacturing cost.
  • An object of the present invention is to provide a simple structure for lubricating oil supplied to a high pressure portion of a back pressure chamber. It is providing the compressor which can be distribute
  • the present invention is provided with a fixed scroll member fixed to a housing and provided with a spiral body on one end surface of the end plate, and provided to face the fixed scroll member.
  • a orbiting scroll member provided with a spiral body on the scroll member side, a drive shaft for orbiting the orbiting scroll member on a predetermined circular path, and provided on the opposite side of the spiral body of the orbiting scroll member;
  • the back pressure chamber between the orbiting scroll member and the bearing frame is located on the high-pressure part located on the radial center side and on the radial outer peripheral side.
  • An annular partition member for partitioning with the low-pressure portion positioned, and the high-pressure portion and the low-pressure portion at a predetermined orbiting position of the orbiting scroll member on the opposite side of the spiral body of the orbiting scroll member And oil groove is provided for communicating, Ru.
  • the high pressure portion and the low pressure portion of the back pressure chamber can be communicated with each other at a predetermined orbiting position of the orbiting scroll member.
  • the manufacturing cost it is possible to reduce the manufacturing cost.
  • FIG. 1 is a cross-sectional view of a compressor showing an embodiment of the present invention.
  • FIG. 2 is a diagram showing a positional relationship between a turning scroll member and a partition member.
  • FIG. 3 is a cross-sectional view of a main part of the compressor showing a state where a high pressure portion and a low pressure portion are communicated with each other by an oil supply groove.
  • This compressor is provided in a vertically long housing 10, an upper part in the housing 10, a compression part 20 for compressing the sucked refrigerant, and a lower part of the compression part 20 in the housing 10.
  • the hermetic compressor includes an electric motor 30 for driving the compression unit 20.
  • carbon dioxide that becomes supercritical when compressed is used as a refrigerant.
  • the housing 10 includes a housing body 11 that also serves as a cylindrical member arranged with a central axis directed in the vertical direction, and a pair of hemispheres that close the upper end opening and the lower end opening of the housing body 11.
  • Cap 12 A refrigerant discharge pipe 13 for discharging the refrigerant compressed in the compression unit 20 is connected to the cap 12 that closes the upper end opening of the housing body 10.
  • a refrigerant suction pipe 14 for sucking a refrigerant is connected to the peripheral surface of the housing body 11 where the compression unit 20 is located.
  • the compression unit 20 is provided on the upper side of the housing body 11 so as to partition the interior of the housing 10 up and down, and is provided below the fixed scroll member 21 so as to be fixed to the fixed scroll member 21. And a turning scroll member 22 that can turn without rotating.
  • the fixed scroll member 21 is also a disk-shaped member disposed with its central axis facing up and down, and a spiral body is provided on the lower surface side.
  • a refrigerant discharge hole 21a for discharging a compressed refrigerant is provided in the central portion of the fixed scroll member 21 in the radial direction.
  • the fixed scroll member 21 is formed with a communication passage 21b that communicates the inside of the spiral body of the fixed scroll member 21 with a low pressure portion of a back pressure chamber described later, and a back pressure adjusting valve 21c is provided in the communication passage 21b. It is provided.
  • the orbiting scroll member 22 is formed of a disk-like member provided so as to face the fixed scroll member 21, and a spiral body is provided on the upper surface side.
  • the upper end of the drive shaft 23 is connected to the lower surface side of the orbiting scroll member 22.
  • an oil supply groove 22a extending radially inward is provided on the lower surface side of the orbiting scroll member 22, A high pressure portion and a low pressure portion of a back pressure chamber, which will be described later, communicate with each other at a predetermined turning position of the member 22.
  • the drive shaft 23 is disposed with the central axis serving as the rotation center facing up and down, and the connecting portion 23a with the turning scroll member is provided so that the rotation center force of the drive shaft 23 is also eccentric.
  • the drive shaft 23 is rotatably supported by an upper frame 24 as a bearing frame provided so that the upper end side partitions the inside of the housing 10 up and down, and a lower frame provided so that the lower side partitions the inside of the housing 10 up and down. It is rotatably supported by 25.
  • the drive shaft 23 is rotated by using the electric motor 30 as power.
  • the rotation of the drive shaft 23 causes the orbiting scroll member 22 to rotate on a predetermined circular orbit.
  • the drive shaft 23 is provided with a lubricating oil flow passage 23b along the central axis, and the lubricating oil sucked by the oil pump 26 connected to the lower end side flows through the lubricating oil flow passage 23b. .
  • the upper frame 24 is provided such that the radially outer side on the upper surface side extends upward in the circumferential direction, and is connected to the lower surface of the fixed scroll member 21.
  • the orbiting scroll member 22 is housed in the space between the upper frame 24 and the fixed scroll member 21.
  • a back pressure chamber provided in a space between the lower surface of the orbiting scroll member 22 and the upper surface of the upper frame 24 is provided with a high pressure portion 24a positioned on the inner peripheral side and an outer peripheral portion.
  • a partition member 24c is provided for partitioning into a low-pressure part 24b located on the side.
  • the partition member 24c is made of a synthetic resin member or the like formed in an annular shape, and the lower surface of the turning scroll member 22 slides on the upper surface.
  • the oil supply groove 22a provided on the lower surface of the orbiting scroll member 22 is provided so as to be positioned on the high pressure portion 24a side with respect to the partition member 24c, and the orbiting scroll when the high pressure portion 24a and the low pressure portion 24b communicate with each other.
  • the end of the oil supply groove 22a is positioned on the low pressure part 24b side.
  • the space above the fixed scroll member 21 in the housing 10 is partitioned by a partition member 15 into a space 15a on the refrigerant discharge hole 21a side of the fixed scroll member 21 and a space 15b on the refrigerant discharge pipe 13 side. .
  • the space 15a on the refrigerant discharge hole 21a side is separated from the upper frame 24 and the lower frame 2 by the communication path 16 provided in the fixed scroll member 21 and the upper frame 24. It communicates with the space 17 between 5.
  • the space 17 is communicated with a space 15b on the refrigerant discharge pipe 13 side by a communication path 18 provided in the fixed scroll member 21 and the upper frame 24.
  • lubricating oil for lubricating each sliding portion in the housing 10 is stored, and the stored lubricating oil is stored in the space 19.
  • the oil pump 26 circulates the lubricating oil flow passage 23b of the drive shaft 23.
  • the electric motor 30 includes a rotor 31 provided in the space 17 and also having a permanent magnet force fixed to the drive shaft 23, and a stator 32 provided so as to surround the rotor 31 and fixed to the housing body 11. is doing.
  • the stator 32 includes a stator core 32a provided by laminating a plurality of electromagnetic steel plates in the direction of the central axis of the housing body 11, and a coil 32b wound around the stator core 32a.
  • the refrigerant that also flows into the housing 10 as well as the refrigerant suction pipe 14 flows into the compression unit 20 and is compressed between the spiral bodies of the fixed scroll member 21 and the orbiting scroll member 22 to discharge the refrigerant. It is discharged from the hole 21a into the space 15a.
  • the refrigerant discharged into the space 15a flows through the communication path 16 and flows into the space 17, cools the electric motor 30, flows through the communication path 18, flows into the space 15b, and flows out of the housing 10 from the refrigerant discharge pipe 13. leak.
  • the space 17 communicates with the back pressure chamber through a gap between the upper frame 24 and the drive shaft 23, the orbiting scroll member 22 is moved upward by the pressure of the space 17. The pushing force acts on.
  • the lubricating oil stored in the space 19 below the lower frame 25 is sucked by the oil pump 26 and flows through the lubricating oil flow passage 23b of the drive shaft 23.
  • the oil slides out and lubricates each sliding part.
  • the lubricating oil that has flowed into the high pressure portion 24a of the back pressure chamber passes through the oil supply groove 22a at a predetermined orbiting position of the orbiting scroll member 22 that orbits on a predetermined circular path.
  • the rotating scroll mechanism 22 is lubricated (not shown).
  • the lubricating oil flowing into the low pressure part 24b opens the back pressure regulating valve 21c and flows through the communication passage 21b, and the fixed scroll member 21 and the orbiting scroll member 22 And the sliding portion between the fixed scroll member 21 and the orbiting scroll member 22 is lubricated.
  • the high pressure portion 24a and the outer peripheral portion are located in the inner peripheral portion of the back pressure chamber provided in the space between the orbiting scroll member 22 and the upper frame 24.
  • An annular partition member 24c that partitions into a low-pressure part 24b positioned at a lower part of the orbiting scroll member 22 is connected to the lower surface of the orbiting scroll member 22 by connecting the high-pressure part 24a and the low-pressure part 24b at a predetermined orbiting position.
  • An oil supply groove 22a is provided to allow the lubricating oil supplied to the high pressure section 24a to flow to the low pressure section 24b.
  • the oil supply groove 22a is provided so as to be positioned on the high pressure portion 24a side, and the end portion of the orbiting scroll member 22 has a low pressure only when the high pressure portion 24a and the low pressure portion 24b communicate with each other. It is located on the part 24b side. As a result, the pressure can always be applied to the oil supply groove 22a by applying downward force upward, so that the partition member 24c is not damaged by the members around the oil supply groove 22a.
  • the oil supply groove 22a is provided so as to extend in the radial direction of the orbiting scroll member 22.
  • the high pressure portion 24a and the low pressure portion 24b can be communicated with each other with a minimum amount of processing of the orbiting scroll member 22, so that the manufacturing cost can be reduced.

Landscapes

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

Abstract

L'invention concerne un compresseur caractérisé en ce que l'huile de lubrification injectée dans une section haute pression dans une chambre à retour de pression peut s'écouler vers une section basse pression grâce à une simple structure. Le compresseur présente un élément de séparation annulaire divisant la chambre à retour de pression, disposée entre un élément défilant en orbite et un cadre support, en une section haute pression située sur le côté périphérique interne de la chambre à retour de pression et une section basse pression située sur le côté périphérique externe. Une rainure d'arrivée d'huile est formée dans la surface de l'élément défilant en orbite se trouvant sur le côté opposé du corps spiralé, et la rainure d'huile interconnecte, en une position prédéterminée d'orbite de l'élément défilant en orbite, la section haute pression et la section basse pression. En conséquence, l'huile de lubrification injectée dans la section haute pression s'écoule dans la section basse pression par le biais de la rainure d'arrivée d'huile en une position prédéterminée d'orbite de l'élément défilant en orbite.
PCT/JP2007/062241 2006-06-27 2007-06-18 compresseur WO2008001639A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07767139.4A EP2034187B1 (fr) 2006-06-27 2007-06-18 Compresseur à spirales

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006176931A JP2008008161A (ja) 2006-06-27 2006-06-27 圧縮機
JP2006-176931 2006-06-27

Publications (1)

Publication Number Publication Date
WO2008001639A1 true WO2008001639A1 (fr) 2008-01-03

Family

ID=38845407

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/062241 WO2008001639A1 (fr) 2006-06-27 2007-06-18 compresseur

Country Status (3)

Country Link
EP (1) EP2034187B1 (fr)
JP (1) JP2008008161A (fr)
WO (1) WO2008001639A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103375407A (zh) * 2012-04-27 2013-10-30 比亚迪股份有限公司 一种涡旋式压缩机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5071355B2 (ja) * 2008-11-21 2012-11-14 パナソニック株式会社 スクロール圧縮機
JP5548586B2 (ja) 2010-10-28 2014-07-16 日立アプライアンス株式会社 スクロール圧縮機
JP2012255430A (ja) * 2011-02-07 2012-12-27 Panasonic Corp 圧縮機
CN106151043A (zh) * 2015-04-07 2016-11-23 珠海格力节能环保制冷技术研究中心有限公司 涡旋压缩机上支架及具有其的涡旋压缩机
CN105889064A (zh) * 2016-06-15 2016-08-24 珠海格力节能环保制冷技术研究中心有限公司 涡旋压缩机及空调
CN207795583U (zh) 2017-12-27 2018-08-31 艾默生环境优化技术(苏州)有限公司 供油机构和具有该供油机构的卧式压缩机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1122665A (ja) * 1997-06-30 1999-01-26 Matsushita Electric Ind Co Ltd 密閉型電動スクロール圧縮機
JPH11280678A (ja) 1998-03-31 1999-10-15 Fujitsu General Ltd スクロール圧縮機
JP2006037896A (ja) 2004-07-29 2006-02-09 Matsushita Electric Ind Co Ltd スクロール圧縮機

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4329528B2 (ja) * 2003-12-19 2009-09-09 株式会社豊田自動織機 スクロールコンプレッサ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1122665A (ja) * 1997-06-30 1999-01-26 Matsushita Electric Ind Co Ltd 密閉型電動スクロール圧縮機
JPH11280678A (ja) 1998-03-31 1999-10-15 Fujitsu General Ltd スクロール圧縮機
JP2006037896A (ja) 2004-07-29 2006-02-09 Matsushita Electric Ind Co Ltd スクロール圧縮機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2034187A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103375407A (zh) * 2012-04-27 2013-10-30 比亚迪股份有限公司 一种涡旋式压缩机
CN103375407B (zh) * 2012-04-27 2016-04-27 比亚迪股份有限公司 一种涡旋式压缩机

Also Published As

Publication number Publication date
EP2034187B1 (fr) 2014-08-20
EP2034187A1 (fr) 2009-03-11
JP2008008161A (ja) 2008-01-17
EP2034187A4 (fr) 2012-11-21

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