JP2009270544A - Scroll fluid machine - Google Patents

Scroll fluid machine Download PDF

Info

Publication number
JP2009270544A
JP2009270544A JP2008123968A JP2008123968A JP2009270544A JP 2009270544 A JP2009270544 A JP 2009270544A JP 2008123968 A JP2008123968 A JP 2008123968A JP 2008123968 A JP2008123968 A JP 2008123968A JP 2009270544 A JP2009270544 A JP 2009270544A
Authority
JP
Japan
Prior art keywords
shaft
scroll
casing
fluid machine
revolving
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
JP2008123968A
Other languages
Japanese (ja)
Other versions
JP5114639B2 (en
Inventor
Kimio Watanabe
公雄 渡辺
Fuseki Ko
富石 黄
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.)
RICHSTONE Ltd
RichStone Ltd Japan
Original Assignee
RICHSTONE Ltd
RichStone Ltd Japan
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 RICHSTONE Ltd, RichStone Ltd Japan filed Critical RICHSTONE Ltd
Priority to JP2008123968A priority Critical patent/JP5114639B2/en
Priority to KR1020090036269A priority patent/KR101078161B1/en
Publication of JP2009270544A publication Critical patent/JP2009270544A/en
Application granted granted Critical
Publication of JP5114639B2 publication Critical patent/JP5114639B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/001—Radial sealings for working fluid
    • 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
    • F04C18/0215—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 where only one member is moving
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid
    • 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
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Landscapes

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scroll fluid machine excellent in air-tightness and capable of miniaturization. <P>SOLUTION: This scroll fluid machine includes a stator 2, a first casing 10 fixing the stator 2, a rotary shaft 4 rotatably supported by the first casing 10, a rotor 5 fixed on the rotary shaft 4, a turning shaft 6 eccentrically rotatably supported by the rotary shaft 4, a rotation prevention means preventing the rotation of the turning shaft 6, a turning scroll 8 fixed on one end of the turning shaft 6, a second casing 20 including a fixed scroll 9 meshing with the turning scroll 8, and a sealing part 20 attached to the second casing 20 and forming a compression chamber 24 together with the second casing 20 while leaving an opening 24a with which the turning shaft 6 can rotate. A turning plate 11 is perpendicularly provided on the turning shaft 6 and the opening 24a is sealed by the seal 12 mounted on the seal part 20a and the turning plate 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、偏心旋回駆動装置を用いたスクロール流体機械に関し、特に気密性に優れ、かつ小型のスクロール流体機械に関する。   The present invention relates to a scroll fluid machine using an eccentric turning drive device, and more particularly to a small scroll fluid machine having excellent airtightness.

スクロール流体機械は、固定スクロールと、駆動装置の軸に固定された可動スクロールとを有し、固定スクロールと可動スクロールを噛合させてガス圧縮室を形成するとともに、可動スクロールを自転させずに旋回運動させることで、吸入管から流入した気体を圧縮させて吐出管から吐出する。   The scroll fluid machine has a fixed scroll and a movable scroll fixed to the shaft of the driving device. The fixed scroll and the movable scroll are meshed to form a gas compression chamber, and the orbiting motion is performed without rotating the movable scroll. By doing so, the gas flowing in from the suction pipe is compressed and discharged from the discharge pipe.

スクロール流体機械に用いる駆動装置として、旋回軸を有する偏心旋回駆動装置が提案されている。特許文献１（特開2006-22775号公報）が開示するスクロール流体機械100は、図８に示すように、ケーシング10，20と、ケーシング20に固定された固定スクロール９と、ケーシング10に固定されたステータ２と、ケーシング10に固定された軸受部３によりケーシング10に回転可能に支持された回転軸４と、回転軸４に固定されたロータ５と、回転軸４に偏心して回転可能に支持された旋回軸６と、旋回軸６の一方の端部に筒状体７を介して取り付けられ、固定スクロール９と噛合する旋回スクロール８と、旋回軸６の偏心旋回を許容しかつ上記旋回軸の自転を防止する自転防止手段（図示せず）とを設けている。   An eccentric turning drive device having a turning shaft has been proposed as a drive device used in a scroll fluid machine. As shown in FIG. 8, a scroll fluid machine 100 disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2006-22775) is fixed to the casing 10, the fixed scroll 9 fixed to the casing 20, and the casing 10. The stator 2, the rotating shaft 4 rotatably supported on the casing 10 by the bearing 3 fixed to the casing 10, the rotor 5 fixed to the rotating shaft 4, and the shaft 5 eccentrically supported to be rotatable. The revolving shaft 6, the revolving scroll 8 that is attached to one end of the revolving shaft 6 via the cylindrical body 7, and meshes with the fixed scroll 9. Rotation prevention means (not shown) for preventing the rotation of the rotation is provided.

ガス圧縮効率を高めるために、固定スクロールと可動スクロールとを有するガス圧縮室には、吸入管及び吐出管以外の部分から空気等の気体の流出入がないのが望ましい。そのため、駆動装置を含むスクロール流体機械全体をケーシングで覆うことにより、その内部全体の吸引圧力を調整する手段が用いられている。しかしながら、かかる手段を用いるとスクロール流体機械が大型化するのに加えて、駆動装置の駆動熱が蓄積するという問題がある。   In order to increase gas compression efficiency, it is desirable that a gas compression chamber having a fixed scroll and a movable scroll be free from inflow and outflow of gas such as air from portions other than the suction pipe and the discharge pipe. Therefore, means for adjusting the suction pressure of the entire interior by covering the entire scroll fluid machine including the drive device with a casing is used. However, when such a means is used, there is a problem that the drive fluid of the drive device accumulates in addition to an increase in the size of the scroll fluid machine.

従って、スクロール流体機械全体の吸引圧力を調整してガス圧縮室への気体の流出入を阻止するのではなく、気体の流出入を阻止したいガス圧縮室のみを封止するのが好ましい。例えば、駆動装置の回転軸とケーシングとの間をシールリング等で覆うことが考えられる。しかしながら、偏心旋回駆動装置を用いたスクロール流体機械では、旋回軸は旋回するため、旋回軸の側面をシールリングする方法ではガス圧縮室を封止することができない。   Therefore, it is preferable to seal only the gas compression chamber where it is desired to prevent gas inflow / outflow, instead of adjusting the suction pressure of the entire scroll fluid machine to prevent gas inflow / outflow into the gas compression chamber. For example, it is conceivable to cover the space between the rotating shaft of the drive device and the casing with a seal ring or the like. However, in the scroll fluid machine using the eccentric turning drive device, the turning shaft turns, so that the gas compression chamber cannot be sealed by the method of sealing the side surface of the turning shaft.

そこで、図９に示すように、旋回スクロール８の縁部に封止材30を設け、旋回スクロール８と固定スクロール９とが噛合する部分を封止することが考えられる。しかしながら、旋回スクロールに稼働時での遠心力がかかるため旋回スクロールの縁部に軸方向の揺れが起こり、旋回スクロール８と封止材30との間に隙間が生じるため、十分な気密性を保てない。さらに、封止材30は旋回スクロール８に接しているため、スクロール流体機械の駆動熱を受けやすく、耐久性が悪いという問題もある。   Therefore, as shown in FIG. 9, it is conceivable to provide a sealing material 30 at the edge of the orbiting scroll 8 and seal the portion where the orbiting scroll 8 and the fixed scroll 9 mesh. However, since the centrifugal force is applied to the orbiting scroll during operation, the edge of the orbiting scroll is swayed in the axial direction, and a gap is formed between the orbiting scroll 8 and the sealing material 30, so that sufficient airtightness is maintained. Not. Furthermore, since the sealing material 30 is in contact with the orbiting scroll 8, there is a problem that the driving force of the scroll fluid machine is easily received and the durability is poor.

特開2006-22775号公報JP 2006-22775 Gazette

本発明の目的は、気密性に優れ、かつ小型化が可能なスクロール流体機械を提供することである。   An object of the present invention is to provide a scroll fluid machine that is excellent in airtightness and that can be miniaturized.

上記課題に鑑み鋭意研究の結果、本発明者らは、偏心旋回駆動装置を有するスクロール流体機械において、旋回軸に垂設した旋回板と開口部を残しつつ圧縮室を形成する封止板に載置されたシールとにより圧縮室の開口部を封止する、又は旋回軸に垂設した旋回板と開口部を残しつつ圧縮室を形成する封止板に設けられた封止室に載置されたシールとにより圧縮室の開口部を封止することにより、圧縮室の気密性が高められ、もってガス圧縮性能に優れ、かつ小型化が可能なスクロール流体機械が得られることを発見し、本発明に想到した。   As a result of diligent research in view of the above problems, the present inventors, in a scroll fluid machine having an eccentric swirl drive device, mounted on a swivel plate suspended from a swivel shaft and a sealing plate that forms a compression chamber while leaving an opening. The opening of the compression chamber is sealed with the placed seal, or placed in a sealing chamber provided on a sealing plate that forms a compression chamber while leaving the opening with a swiveling plate suspended from the swivel shaft. It was discovered that by sealing the opening of the compression chamber with a sealed seal, the air tightness of the compression chamber is enhanced, and thus a scroll fluid machine that has excellent gas compression performance and can be reduced in size can be obtained. I came up with the invention.

即ち、本発明は以下の特徴を有している。   That is, the present invention has the following features.

(1) ステータと、前記ステータを固定する第一のケーシングと、前記第一のケーシングに回転可能に支持された回転軸と、前記回転軸に固定されたロータと、前記回転軸に偏心して回転可能に支持された旋回軸と、前記旋回軸の自転を防止する自転防止手段と、前記旋回軸の一端に固定された旋回スクロールと、前記旋回スクロールと噛合する固定スクロールを有する第二のケーシングと、前記第二のケーシングに取り付けられ、前記旋回軸が旋回可能な開口部を残しつつ第二のケーシングとともに圧縮室を形成する封止部とを具備し、前記旋回軸には旋回板が垂設されており、前記封止部に載置されたシールと前記旋回板とにより前記開口部を封止することを特徴とするスクロール流体機械。
(2) 上記(1) に記載のスクロール流体機械において、前記シールが前記封止部に２以上設けられていることを特徴とするスクロール流体機械。
(3) ステータと、前記ステータを固定する第一のケーシングと、前記第一のケーシングに回転可能に支持された回転軸と、前記回転軸に固定されたロータと、前記回転軸に偏心して回転可能に支持された旋回軸と、前記旋回軸の自転を防止する自転防止手段と、前記旋回軸の一端に固定された旋回スクロールと、前記旋回スクロールと噛合する固定スクロールを有する第二のケーシングと、前記第二のケーシングに取り付けられ、前記旋回軸が旋回可能な開口部を残しつつ第二のケーシングとともに圧縮室を形成する封止部とを具備し、前記旋回軸には旋回板が垂設されており、前記封止部は前記旋回板を旋回可能に内包する封止室を有し、前記封止室の両面に載置されたシールと前記旋回板とにより前記開口部を封止することを特徴とするスクロール流体機械。
(4) 上記(3) に記載のスクロール流体機械において、前記シールが前記封止室の両面にそれぞれ２以上設けられていることを特徴とするスクロール流体機械。
(5) 上記(1)〜(4) のいずれかに記載のスクロール流体機械において、前記シールは円環状であり、かつスプリングを内包していることを特徴とするスクロール流体機械。 (1) A stator, a first casing that fixes the stator, a rotation shaft that is rotatably supported by the first casing, a rotor that is fixed to the rotation shaft, and a rotation that is eccentric to the rotation shaft A revolving shaft supported in a possible manner, a rotation preventing means for preventing the revolving of the revolving shaft, a revolving scroll fixed to one end of the revolving shaft, and a second casing having a fixed scroll meshing with the revolving scroll; And a sealing portion that is attached to the second casing and forms a compression chamber together with the second casing while leaving an opening in which the swivel shaft can swivel, and a swivel plate is suspended from the swivel shaft A scroll fluid machine characterized in that the opening is sealed by a seal placed on the sealing portion and the swivel plate.
(2) The scroll fluid machine according to (1), wherein two or more of the seals are provided in the sealing portion.
(3) A stator, a first casing that fixes the stator, a rotating shaft that is rotatably supported by the first casing, a rotor that is fixed to the rotating shaft, and a rotation that is eccentric to the rotating shaft. A revolving shaft supported in a possible manner, a rotation preventing means for preventing the revolving of the revolving shaft, a revolving scroll fixed to one end of the revolving shaft, and a second casing having a fixed scroll meshing with the revolving scroll; And a sealing portion that is attached to the second casing and forms a compression chamber together with the second casing while leaving an opening in which the swivel shaft can swivel, and a swivel plate is suspended from the swivel shaft The sealing portion has a sealing chamber that encloses the swivel plate so as to be able to swivel, and seals the opening by a seal placed on both surfaces of the sealing chamber and the swivel plate. It is characterized by that Crawl fluid machine.
(4) The scroll fluid machine according to (3), wherein two or more of the seals are provided on both surfaces of the sealing chamber.
(5) The scroll fluid machine according to any one of the above (1) to (4), wherein the seal is annular and includes a spring.

本発明のスクロール流体機械は、偏心旋回駆動装置を具備し、旋回軸に垂設した旋回板と開口部を残しつつ圧縮室を形成する封止板に載置されたシールとにより圧縮室の開口部を封止する、又は旋回軸に垂設した旋回板と開口部を残しつつ圧縮室を形成する封止板に設けられた封止室に載置されたシールとにより圧縮室の開口部を封止することにより、圧縮室の気密性が高められ、もってガス圧縮性能に優れ、かつ小型化が可能なスクロール流体機械が得られる。   The scroll fluid machine of the present invention includes an eccentric orbiting drive device, and includes an orbiting plate suspended from an orbiting shaft and a seal placed on a sealing plate that forms a compression chamber while leaving an opening, and the opening of the compression chamber. The opening portion of the compression chamber is sealed by a swivel plate that is suspended from the swivel shaft and a seal placed in a sealing chamber provided on the sealing plate that forms the compression chamber while leaving the opening portion. By sealing, the hermeticity of the compression chamber is enhanced, so that a scroll fluid machine that has excellent gas compression performance and can be reduced in size can be obtained.

また旋回板を旋回スクロールから離れて設置するため、スクロール流体機械の駆動時に旋回スクロールからの駆動熱を受けにくいので封止部の温度が低く、シールの耐久性にも優れている。   Further, since the orbiting plate is installed away from the orbiting scroll, it is difficult to receive the driving heat from the orbiting scroll when the scroll fluid machine is driven, so the temperature of the sealing portion is low and the durability of the seal is excellent.

上記旋回板の両面をシールを介して封止する、又は２重のシールを介して封止することにより、シール性に優れ、開口部をバランス良く封止することができる。   By sealing both surfaces of the swivel plate with a seal or by sealing with a double seal, the sealing portion is excellent and the opening can be sealed with good balance.

[1] スクロール流体機械
(1-1) スクロール流体機械の構成
本発明の一実施例であるスクロール流体機械1aの構成を図１及び図２を参照して以下説明する。スクロール流体機械1aは、ステータ２と、ステータ２を固定する第一のケーシング10と、第一のケーシング10に固定された軸受部３により回転可能に支持された回転軸４と、回転軸４に固定されたロータ５と、回転軸４に軸受14、15を介して回転可能に支持された旋回軸６と、旋回軸６の一方端部に筒状体７を介して取り付けられた旋回スクロール８と、旋回軸６の他端端部に取り付けられた自転防止機構（図示せず）と、旋回スクロール８と噛合する固定スクロール９を有する第二のケーシング20と、第二のケーシング20に取り付けられ、前記旋回軸が旋回可能な開口部24aを有する封止部20aとを有する。第二のケーシング20と封止部20aとにより、流体の吸入、圧縮及び吐出を行う圧縮室24が形成されている。旋回軸６には、図２に示すように、旋回板11が垂設されている。封止部20aの旋回板11側の面には円環状の溝22が設けられており、円環状の溝22には円環状のシール12が載置されている。円環状のシール12と旋回板11により圧縮室24の開口部24aが封止されている。 [1] scroll fluid machinery
(1-1) Configuration of Scroll Fluid Machine A configuration of a scroll fluid machine 1a according to an embodiment of the present invention will be described below with reference to FIGS. The scroll fluid machine 1 a includes a stator 2, a first casing 10 that fixes the stator 2, a rotating shaft 4 that is rotatably supported by a bearing portion 3 that is fixed to the first casing 10, and a rotating shaft 4. A fixed rotor 5, a revolving shaft 6 rotatably supported on a rotating shaft 4 via bearings 14 and 15, and a revolving scroll 8 attached to one end of the revolving shaft 6 via a cylindrical body 7. A rotation prevention mechanism (not shown) attached to the other end of the orbiting shaft 6, a second casing 20 having a fixed scroll 9 meshing with the orbiting scroll 8, and the second casing 20. And a sealing portion 20a having an opening 24a through which the pivot shaft can pivot. The second casing 20 and the sealing portion 20a form a compression chamber 24 that sucks, compresses and discharges fluid. As shown in FIG. 2, a turning plate 11 is suspended from the turning shaft 6. An annular groove 22 is provided on the surface of the sealing portion 20a on the revolving plate 11 side, and an annular seal 12 is placed in the annular groove 22. The opening 24 a of the compression chamber 24 is sealed by the annular seal 12 and the swivel plate 11.

ステータ２、回転軸４及びロータ５によりモータが構成されており、第一のケーシング10、モータ、回転軸４、旋回軸６、自転防止手段により偏心旋回駆動装置が構成されている。固定スクロール９、旋回スクロール８等により偏心旋回駆動装置により駆動されるスクロール流体機械が構成されている。ステータ２の巻線に通電すると、ロータ５及び回転軸４が回転し、旋回軸６は回転軸４の中心線を中心として偏心旋回するが、自転防止機構が設けられているため旋回軸６は自転しない。このため、旋回スクロール８が固定スクロール９に対して回転せず、旋回スクロール８と固定スクロール９との間に形成された空間を徐々に縮小するように偏心旋回する。それにより、空気等の被圧縮ガスが第二のケーシング20の側面に設けられた吸入管25から吸引され、圧縮室24の旋回スクロール８と固定スクロール９とが噛合する領域内で圧縮されて第二のケーシング20の中央部に設けられた吐出管26から吐出される。自転防止機構については、特開2006-22775号公報に開示されているため、説明を省略する。   The stator 2, the rotating shaft 4, and the rotor 5 constitute a motor, and the first casing 10, the motor, the rotating shaft 4, the turning shaft 6, and the rotation preventing means constitute an eccentric turning driving device. A scroll fluid machine driven by an eccentric orbiting drive device is constituted by the fixed scroll 9, the orbiting scroll 8, and the like. When the windings of the stator 2 are energized, the rotor 5 and the rotating shaft 4 rotate, and the turning shaft 6 turns eccentrically around the center line of the rotating shaft 4, but the turning shaft 6 is provided with a rotation prevention mechanism. Does not rotate. For this reason, the orbiting scroll 8 does not rotate with respect to the fixed scroll 9, but eccentrically orbits so as to gradually reduce the space formed between the orbiting scroll 8 and the fixed scroll 9. As a result, a compressed gas such as air is sucked from a suction pipe 25 provided on the side surface of the second casing 20 and compressed in a region where the orbiting scroll 8 and the fixed scroll 9 of the compression chamber 24 mesh with each other. It is discharged from a discharge pipe 26 provided at the center of the second casing 20. Since the rotation prevention mechanism is disclosed in Japanese Patent Laid-Open No. 2006-22775, description thereof is omitted.

旋回板11と封止部20aの溝22に載置された円環状のシール12とにより圧縮室24の開口部24aを封止することにより、圧縮室24への空気等の気体の流入を抑えることができる。そのため、圧縮室24において被圧縮ガスを有効に吸入、圧縮及び吐出を行うことができる。また旋回板11を旋回スクロール８から離れて旋回軸６に垂設されているため、スクロール流体機械1aの駆動時に旋回スクロールからの駆動熱を受けにくい。そのため、旋回板11、封止部20a及びシール12の温度を低く保つことができ、シール12の優れた耐久性が得られる。   By sealing the opening 24a of the compression chamber 24 with the swivel plate 11 and the annular seal 12 placed in the groove 22 of the sealing portion 20a, the inflow of gas such as air into the compression chamber 24 is suppressed. be able to. Therefore, the compressed gas can be effectively sucked, compressed and discharged in the compression chamber 24. Further, since the orbiting plate 11 is suspended from the orbiting scroll 8 and suspended on the orbiting shaft 6, it is difficult to receive drive heat from the orbiting scroll when the scroll fluid machine 1a is driven. Therefore, the temperatures of the swivel plate 11, the sealing portion 20a, and the seal 12 can be kept low, and the excellent durability of the seal 12 can be obtained.

円環状のシール12，13は、図３に示すように、断面が円状のスプリングを内蔵している。シール12，13の表面は摺動性に優れ、かつ耐摩耗性を有するのが好ましい。シール12，13はスプリングにより弾力性を有し、かつ摺動面は低摩擦であるため、摺動する旋回板11と封止部20aとの間を適切に封止することができる。シール12，13は、耐摩耗性及び摺動性に優れているものであれば特に限定されず、図４に示すように、断面がコ状のスプリングを内蔵した円環状のシールでも良い。   As shown in FIG. 3, the annular seals 12 and 13 incorporate springs having a circular cross section. It is preferable that the surfaces of the seals 12 and 13 have excellent slidability and wear resistance. Since the seals 12 and 13 have elasticity by springs and the sliding surface has low friction, the space between the sliding revolving plate 11 and the sealing portion 20a can be appropriately sealed. The seals 12 and 13 are not particularly limited as long as they have excellent wear resistance and slidability, and may be annular seals having springs with a U-shaped cross section as shown in FIG.

本発明の別の実施例であるスクロール流体機械1bを図５に示す。図５に示すスクロール流体機械1bは、封止部20aの旋回板11側の面に２重の円環状の溝22a，22bが形成されており、それぞれに円環状のシール12a，12bが設置されている以外は、図１に示すスクロール流体機械1aと同じである。円環状のシールを２重に設けることで、シール性に優れ、かつ開口部24aをバランス良く封止することができる。   FIG. 5 shows a scroll fluid machine 1b according to another embodiment of the present invention. In the scroll fluid machine 1b shown in FIG. 5, double annular grooves 22a and 22b are formed on the surface of the sealing portion 20a on the revolving plate 11 side, and annular seals 12a and 12b are respectively installed. The scroll fluid machine 1a is the same as the scroll fluid machine 1a shown in FIG. By providing double annular seals, the sealing performance is excellent and the opening 24a can be sealed with good balance.

本発明のさらに別の実施例であるスクロール流体機械1cを図６に示す。スクロール流体機械1aは、ステータ２と、ステータ２を固定する第一のケーシング10と、第一のケーシング10に固定された軸受部３により回転可能に支持された回転軸４と、回転軸４に固定されたロータ５と、回転軸４に軸受14、15を介して回転可能に支持された旋回軸６と、旋回軸６の一方端部に筒状体７を介して取り付けられた旋回スクロール８と、旋回軸６の他端端部に取り付けられた自転防止機構（図示せず）と、旋回スクロール８と噛合する固定スクロール９を有する第二のケーシング20と、第二のケーシング20に取り付けられ、前記旋回軸が旋回可能な開口部24aを有する封止部21とを有する。第二のケーシング20と封止部21とにより、流体の吸入、圧縮及び吐出を行う圧縮室24が形成されている。旋回軸６には、図２に示すように、旋回板11が垂設されている。封止部21は、旋回板11を旋回自在に内包する封止室21aを有する。封止室21aの両面にはそれぞれ円環状の溝22，23が設けられており、円環状の溝22，23には円環状のシール12，13が載置されている。円環状のシール12，13と旋回板11により圧縮室24の開口部24aが封止されている。   FIG. 6 shows a scroll fluid machine 1c which is still another embodiment of the present invention. The scroll fluid machine 1 a includes a stator 2, a first casing 10 that fixes the stator 2, a rotating shaft 4 that is rotatably supported by a bearing portion 3 that is fixed to the first casing 10, and a rotating shaft 4. A fixed rotor 5, a revolving shaft 6 rotatably supported on a rotating shaft 4 via bearings 14 and 15, and a revolving scroll 8 attached to one end of the revolving shaft 6 via a cylindrical body 7. A rotation prevention mechanism (not shown) attached to the other end of the orbiting shaft 6, a second casing 20 having a fixed scroll 9 meshing with the orbiting scroll 8, and the second casing 20. And a sealing portion 21 having an opening 24a in which the pivot shaft is pivotable. The second casing 20 and the sealing portion 21 form a compression chamber 24 that sucks, compresses and discharges fluid. As shown in FIG. 2, a turning plate 11 is suspended from the turning shaft 6. The sealing part 21 has a sealing chamber 21a that encloses the swivel plate 11 so as to be pivotable. Annular grooves 22 and 23 are respectively provided on both surfaces of the sealing chamber 21a, and annular seals 12 and 13 are placed in the annular grooves 22 and 23, respectively. The opening 24 a of the compression chamber 24 is sealed by the annular seals 12 and 13 and the swivel plate 11.

旋回板11と封止室21aの溝22，23に載置された円環状のシール12，13とにより圧縮室24の開口部24aを封止することにより、圧縮室24への空気等の気体の流入を抑えることができる。そのため、圧縮室24において被圧縮ガスを有効に圧縮することができる。旋回板11は２つの円環状のシール12，13と両面で接しているため、２カ所で圧縮室24への空気の流入を抑えることができる。また、旋回軸６の軸方向にぶれに伴う旋回板11の軸方向の移動により、旋回板11の一方の面とシール12，13のいずれかとの間に隙間が生じた場合であっても、旋回板11の他方の面とシール12，13のいずれかとの間は封止される。そのため、シール性に優れ、開口部24aをバランス良く封止することができ、圧縮室24への空気の流入を十分に抑えることができる。   Gas such as air to the compression chamber 24 is sealed by sealing the opening 24a of the compression chamber 24 with the swivel plate 11 and the annular seals 12 and 13 placed in the grooves 22 and 23 of the sealing chamber 21a. Inflow can be suppressed. Therefore, the gas to be compressed can be effectively compressed in the compression chamber 24. Since the swivel plate 11 is in contact with the two annular seals 12 and 13 on both sides, the inflow of air into the compression chamber 24 can be suppressed at two locations. Further, even when a gap is generated between one surface of the swivel plate 11 and one of the seals 12 and 13 due to the movement of the swivel plate 11 in the axial direction accompanying the shake of the swivel shaft 6 in the axial direction, The other surface of the swivel plate 11 and either of the seals 12 and 13 are sealed. Therefore, the sealing property is excellent, the opening 24a can be sealed with good balance, and the inflow of air into the compression chamber 24 can be sufficiently suppressed.

本発明のさらに別の実施例であるスクロール流体機械1dを図７に示す。図５に示すスクロール流体機械1bは、封止室21aの両面にそれぞれ２重の円環状の溝22a，22b，23a，23bが形成されており、それぞれに２つずつの円環状のシール12a，12b及び13a，13bが設置されている以外は、図１に示すスクロール流体機械1aと同じである。円環状のシールを２重に設けることで、シール性をさらに高めるとともに、開口部24aをバランス良く封止することができる。   FIG. 7 shows a scroll fluid machine 1d which is still another embodiment of the present invention. In the scroll fluid machine 1b shown in FIG. 5, double annular grooves 22a, 22b, 23a, 23b are formed on both surfaces of the sealing chamber 21a, respectively, and two annular seals 12a, The scroll fluid machine 1a is the same as the scroll fluid machine 1a shown in FIG. 1 except that 12b and 13a, 13b are installed. By providing double annular seals, the sealing performance can be further improved and the opening 24a can be sealed with good balance.

本発明のスクロール流体機械は、例えば、真空ポンプ等のポンプ、空気圧縮機、冷媒ガス圧縮機、酸素吸入機用圧縮機等として用いることができる。本発明のスクロール流体機械は、本発明の思想を逸脱しない限りは、上記の実施例に限らず、用途に応じて種々の形態を取ることができる。   The scroll fluid machine of the present invention can be used as, for example, a pump such as a vacuum pump, an air compressor, a refrigerant gas compressor, a compressor for an oxygen suction machine, and the like. The scroll fluid machine according to the present invention is not limited to the above-described embodiment, but can take various forms depending on the application unless departing from the concept of the present invention.

本発明の一実施例であるスクロール流体機械を示す断面図である。It is sectional drawing which shows the scroll fluid machine which is one Example of this invention. 旋回軸の一例を示す斜視図である。It is a perspective view which shows an example of a turning axis. シールの一例を示す斜視図である。It is a perspective view which shows an example of a seal | sticker. 図３(a) のシールを示す断面図である。It is sectional drawing which shows the seal | sticker of Fig.3 (a). シールの別の例を示す断面図である。It is sectional drawing which shows another example of a seal | sticker. 本発明の別の実施例であるスクロール流体機械を示す断面図である。It is sectional drawing which shows the scroll fluid machine which is another Example of this invention. 本発明のさらに別の実施例であるスクロール流体機械を示す断面図である。It is sectional drawing which shows the scroll fluid machine which is another Example of this invention. 本発明のさらに別の実施例であるスクロール流体機械を示す断面図である。It is sectional drawing which shows the scroll fluid machine which is another Example of this invention. 従来のスクロール流体機械を示す断面図である。It is sectional drawing which shows the conventional scroll fluid machine. 従来のスクロール流体機械を示す部分断面図である。It is a fragmentary sectional view showing the conventional scroll fluid machine.

符号の説明Explanation of symbols

1a，1b，1c，1d・・・スクロール流体機械
２・・・ステータ
３・・・軸受部
４・・・回転軸
５・・・ロータ
６・・・旋回軸
７・・・筒状体
８・・・旋回スクロール
９・・・固定スクロール
10・・・第一のケーシング
11・・・旋回板
12，13・・・シール
14，15・・・軸受
20・・・第二のケーシング
20a，21・・・封止部
21a・・・封止室
22，22a，22b，23，23a，23b・・・溝
24・・・圧縮室
24a・・・開口部
25・・・吸入管
26・・・吐出管 1a, 1b, 1c, 1d ... Scroll fluid machine 2 ... Stator 3 ... Bearing 4 ... Rotating shaft 5 ... Rotor 6 ... Swiveling shaft 7 ... Cylindrical body 8. ..Rotating scroll 9 ... Fixed scroll
10 ... first casing
11 ... Swivel plate
12, 13 ... Seal
14, 15 ... Bearing
20 ... Second casing
20a, 21 ... sealing part
21a ・ ・ ・ Sealing chamber
22, 22a, 22b, 23, 23a, 23b ... groove
24 ... Compression chamber
24a ・ ・ ・ Opening
25 ... Suction pipe
26 ... Discharge pipe

Claims (5)

ステータと、前記ステータを固定する第一のケーシングと、前記第一のケーシングに回転可能に支持された回転軸と、前記回転軸に固定されたロータと、前記回転軸に偏心して回転可能に支持された旋回軸と、前記旋回軸の自転を防止する自転防止手段と、前記旋回軸の一端に固定された旋回スクロールと、前記旋回スクロールと噛合する固定スクロールを有する第二のケーシングと、前記第二のケーシングに取り付けられ、前記旋回軸が旋回可能な開口部を残しつつ第二のケーシングとともに圧縮室を形成する封止部とを具備し、前記旋回軸には旋回板が垂設されており、前記封止部に載置されたシールと前記旋回板とにより前記開口部を封止することを特徴とするスクロール流体機械。   A stator, a first casing that fixes the stator, a rotating shaft that is rotatably supported by the first casing, a rotor that is fixed to the rotating shaft, and a shaft that is eccentrically supported by the rotating shaft and that is rotatably supported A revolving shaft, a rotation preventing means for preventing the revolving of the revolving shaft, a revolving scroll fixed to one end of the revolving shaft, a second casing having a fixed scroll meshing with the revolving scroll, the first A sealing portion that is attached to a second casing and that forms a compression chamber together with a second casing while leaving an opening in which the swivel shaft can swivel, and a swivel plate is suspended from the swivel shaft. A scroll fluid machine characterized in that the opening is sealed by a seal placed on the sealing part and the turning plate. 請求項１に記載のスクロール流体機械において、前記シールが前記封止部に２以上設けられていることを特徴とするスクロール流体機械。   The scroll fluid machine according to claim 1, wherein two or more of the seals are provided in the sealing portion. ステータと、前記ステータを固定する第一のケーシングと、前記第一のケーシングに回転可能に支持された回転軸と、前記回転軸に固定されたロータと、前記回転軸に偏心して回転可能に支持された旋回軸と、前記旋回軸の自転を防止する自転防止手段と、前記旋回軸の一端に固定された旋回スクロールと、前記旋回スクロールと噛合する固定スクロールを有する第二のケーシングと、前記第二のケーシングに取り付けられ、前記旋回軸が旋回可能な開口部を残しつつ第二のケーシングとともに圧縮室を形成する封止部とを具備し、前記旋回軸には旋回板が垂設されており、前記封止部は前記旋回板を旋回可能に内包する封止室を有し、前記封止室の両面に載置されたシールと前記旋回板とにより前記開口部を封止することを特徴とするスクロール流体機械。   A stator, a first casing that fixes the stator, a rotating shaft that is rotatably supported by the first casing, a rotor that is fixed to the rotating shaft, and a shaft that is eccentrically supported by the rotating shaft and that is rotatably supported A revolving shaft, a rotation preventing means for preventing the revolving of the revolving shaft, a revolving scroll fixed to one end of the revolving shaft, a second casing having a fixed scroll meshing with the revolving scroll, the first A sealing portion that is attached to a second casing and that forms a compression chamber together with a second casing while leaving an opening in which the swivel shaft can swivel, and a swivel plate is suspended from the swivel shaft. The sealing portion has a sealing chamber that encloses the swivel plate so as to be capable of swiveling, and the opening is sealed by the seal placed on both surfaces of the sealing chamber and the swivel plate. Scoring Lumpur fluid machine. 請求項３に記載のスクロール流体機械において、前記シールが前記封止室の両面にそれぞれ２以上設けられていることを特徴とするスクロール流体機械。   4. The scroll fluid machine according to claim 3, wherein two or more of the seals are provided on both surfaces of the sealing chamber. 請求項１〜４のいずれかに記載のスクロール流体機械において、前記シールは円環状であり、かつスプリングを内包していることを特徴とするスクロール流体機械。   The scroll fluid machine according to any one of claims 1 to 4, wherein the seal has an annular shape and includes a spring.
JP2008123968A 2008-05-09 2008-05-09 Scroll fluid machinery Expired - Fee Related JP5114639B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008123968A JP5114639B2 (en) 2008-05-09 2008-05-09 Scroll fluid machinery
KR1020090036269A KR101078161B1 (en) 2008-05-09 2009-04-25 Scroll fluid machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008123968A JP5114639B2 (en) 2008-05-09 2008-05-09 Scroll fluid machinery

Publications (2)

Publication Number Publication Date
JP2009270544A true JP2009270544A (en) 2009-11-19
JP5114639B2 JP5114639B2 (en) 2013-01-09

Family

ID=41437311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008123968A Expired - Fee Related JP5114639B2 (en) 2008-05-09 2008-05-09 Scroll fluid machinery

Country Status (2)

Country Link
JP (1) JP5114639B2 (en)
KR (1) KR101078161B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63138180A (en) * 1986-11-28 1988-06-10 Mitsui Seiki Kogyo Co Ltd Scroll compressor
JPH03145584A (en) * 1989-10-30 1991-06-20 Nippondenso Co Ltd Scroll type compressor
JPH03199688A (en) * 1989-12-25 1991-08-30 Nippon Soken Inc Scroll type compressor
JP2001304143A (en) * 2000-04-25 2001-10-31 Mineo Takahashi Scroll compressor
JP2007100599A (en) * 2005-10-05 2007-04-19 A & A Kenkyusho:Kk Scroll fluid machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004218519A (en) 2003-01-15 2004-08-05 Mineo Takahashi Scroll fluid machine
JP2004270599A (en) 2003-03-11 2004-09-30 Hitachi Ltd Scroll compressor
JP2006022775A (en) 2004-07-09 2006-01-26 A & A Kenkyusho:Kk Eccentric swivel driving device and scroll fluid machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63138180A (en) * 1986-11-28 1988-06-10 Mitsui Seiki Kogyo Co Ltd Scroll compressor
JPH03145584A (en) * 1989-10-30 1991-06-20 Nippondenso Co Ltd Scroll type compressor
JPH03199688A (en) * 1989-12-25 1991-08-30 Nippon Soken Inc Scroll type compressor
JP2001304143A (en) * 2000-04-25 2001-10-31 Mineo Takahashi Scroll compressor
JP2007100599A (en) * 2005-10-05 2007-04-19 A & A Kenkyusho:Kk Scroll fluid machine

Also Published As

Publication number Publication date
KR101078161B1 (en) 2011-10-28
JP5114639B2 (en) 2013-01-09
KR20090117615A (en) 2009-11-12

Similar Documents

Publication Publication Date Title
JP2007270697A (en) Scroll fluid machine
JP6330243B2 (en) Scroll pump
JP5114639B2 (en) Scroll fluid machinery
JP6792072B2 (en) Scroll fluid machine
JP2010156249A (en) Scroll compressor
JP2010144522A (en) Scroll compressor
JP2008057465A (en) Scroll type fluid machine
WO2018051750A1 (en) Scroll compressor
JP2007239630A (en) Scroll compressor
JP2020094557A (en) Fluid machine
JP5108664B2 (en) Scroll type fluid machinery
JP2018087519A (en) Scroll compressor
JP2011231687A (en) Scroll compressor
JP2004052576A (en) Scroll compressor
JP2010048217A (en) Scroll compressor
JP2010048185A (en) Scroll compressor
JP2020076370A (en) Scroll-type vacuum pump
EP1820968B1 (en) Scroll fluid machine
JP2013253487A (en) Rotation prevention mechanism and scroll compressor using the same
JP2005147024A (en) Scroll type fluid machine
JP2006125363A (en) Scroll compressor
JP2003314474A (en) Scroll type fluid machine
JP2010038107A (en) Scroll type fluid machine
JP2012013025A (en) Scroll compressor
JP2009121379A (en) Scroll compressor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110423

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110425

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110608

TRDD Decision of grant or rejection written
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120816

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120821

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20120907

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120907

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20120910

R150 Certificate of patent or registration of utility model

Ref document number: 5114639

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20221026

Year of fee payment: 10

LAPS Cancellation because of no payment of annual fees