JP2009062876A - Scroll type fluid machine - Google Patents

Scroll type fluid machine Download PDF

Info

Publication number
JP2009062876A
JP2009062876A JP2007231450A JP2007231450A JP2009062876A JP 2009062876 A JP2009062876 A JP 2009062876A JP 2007231450 A JP2007231450 A JP 2007231450A JP 2007231450 A JP2007231450 A JP 2007231450A JP 2009062876 A JP2009062876 A JP 2009062876A
Authority
JP
Japan
Prior art keywords
boss
suction
sealed container
iron
pipe
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
JP2007231450A
Other languages
Japanese (ja)
Other versions
JP5222441B2 (en
Inventor
Akiyoshi Higashiyama
彰良 東山
Tomiji Suzuki
富次 鈴木
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.)
Sanden Corp
Original Assignee
Sanden Corp
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 Corp filed Critical Sanden Corp
Priority to JP2007231450A priority Critical patent/JP5222441B2/en
Priority to EP08829203.2A priority patent/EP2192303B1/en
Priority to PCT/JP2008/065434 priority patent/WO2009031452A1/en
Priority to AU2008294163A priority patent/AU2008294163B2/en
Publication of JP2009062876A publication Critical patent/JP2009062876A/en
Application granted granted Critical
Publication of JP5222441B2 publication Critical patent/JP5222441B2/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • 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
    • F04C2240/80—Other components
    • F04C2240/806—Pipes for fluids; Fittings therefor

Landscapes

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scroll type fluid machine for joining a sealed vessel and a pipe structure by resistance welding, while largely reducing processing cost in the pipe structure. <P>SOLUTION: This pipe structure 40 is composed of a boss 36 fitted from the outside of the sealed vessel 4 to a through-hole 4a and forming a joining part 42 for sealing the through-hole between the sealed vessel and itself, an inner pipe 38 inserted into the boss, inserted into a scroll unit 12 and composed of a copper plating iron-based material, and an outer pipe 8 inserted into the inner pipe, projectingly arranged toward the outside of the sealed vessel from the boss and composed of a copper-based material. The boss is composed of a copper plating iron-based material having an iron exposed part 48 of exposing an iron-based material in the joining part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、スクロール型流体機械に係り、詳しくは、冷凍空調機やヒートポンプ式給湯機に好適なスクロール型流体機械に関する。   The present invention relates to a scroll type fluid machine, and more particularly to a scroll type fluid machine suitable for a refrigeration air conditioner and a heat pump type hot water heater.

この種のスクロール型流体機械、例えば密閉型のスクロール圧縮機は、密閉容器に収容され、電動機により駆動されて冷媒の吸入、圧縮及び吐出の一連のプロセスを実施するスクロールユニットと、密閉容器外からスクロールユニットに冷媒を供給する吸入管構造とを備えている。
ここで、この吸入管構造は、銅管である吸入配管と、銅メッキ鋼管であって、密閉容器の外方に位置づけられる外端面側に吸入配管が内挿されると共に密閉容器の内方に位置づけられる内端面側がスクロールユニット接続される吸入接続管と、銅メッキ鋼管であって、外端面側に吸入配管及び吸入接続管が内挿されると共に内端面側が密閉容器に固定される吸入外管とから構成されている。 This type of scroll type fluid machine, for example, a hermetic scroll compressor, is housed in a hermetic container and driven by an electric motor to perform a series of processes of refrigerant suction, compression and discharge, and from outside the hermetic container. And a suction pipe structure for supplying a refrigerant to the scroll unit.
Here, this suction pipe structure is a suction pipe that is a copper pipe and a copper-plated steel pipe, and the suction pipe is inserted on the outer end surface side that is positioned outside the sealed container and positioned inside the sealed container. A suction connection pipe connected to the scroll unit on the inner end face side, and a copper-plated steel pipe, and a suction outer pipe whose suction pipe and suction connection pipe are inserted on the outer end face side and whose inner end face side is fixed to the sealed container It is configured.

そして、吸入接続管及び吸入外管の外端面と、吸入外管の内端面とをそれぞれ拡径させてバーリング加工を施すことにより、吸入配管に外挿した吸入接続管と、吸入接続管に外挿した吸入外管との両方の内周面における銅メッキ部を露出させて、これら露出された銅メッキ部を吸入配管に同時に銅ロー付けすることができ、また、吸入外管の内端面近傍の内周面における銅メッキを飛ばして密閉容器に抵抗溶接することにより、密閉容器へ吸入外管をロー付けした後の密閉容器内のフラックス除去作業を排除し、ひいては密閉容器の残留フラックスによる腐食を確実に防止する技術が知られている（例えば、特許文献１参照）。
特許第３７８３３４６号公報 Then, the outer end surfaces of the suction connection pipe and the suction outer pipe and the inner end face of the suction outer pipe are expanded to perform burring, so that the suction connection pipe extrapolated to the suction pipe and the suction connection pipe are externally connected. By exposing the copper plated parts on the inner peripheral surface of both the inserted suction outer pipe and the exposed copper plated parts to the suction pipe at the same time, and also in the vicinity of the inner end face of the suction outer pipe By removing copper plating on the inner peripheral surface of the container and resistance welding to the sealed container, the removal of the flux in the sealed container after brazing the suction outer tube to the sealed container is eliminated, and as a result, corrosion due to residual flux in the sealed container There is known a technique for reliably preventing this (see, for example, Patent Document 1).
Japanese Patent No. 378346

しかしながら、上記従来技術では、銅メッキを施した後の材料をカットして管を形成する加工工程をとっているため、吸入配管に対する吸入接続管及び吸入外管のロー付け部を確保するために各管のバーリング加工が必須となり、このことは吸入管構造の加工コストの増大を招来している。
また、上記従来技術では、吸入外管の内端面近傍の銅メッキを飛ばして密閉容器に抵抗溶接するため、文献中にも記載されているように、溶接部を溶接電極と加圧固定した上に大電流を流す必要があり、これより電力消費量の増加や作業中の安全対策を含めた吸入管構造の加工コストが更に増大するおそれがある。 However, in the above prior art, since the processing step of forming the pipe by cutting the material after copper plating is taken, in order to secure the brazed portion of the suction connection pipe and the suction outer pipe with respect to the suction pipe Burring of each pipe is essential, which leads to an increase in the processing cost of the suction pipe structure.
Further, in the above prior art, since the copper plating near the inner end face of the suction outer pipe is skipped and resistance welding is performed on the sealed container, the welded portion is pressure-fixed to the welding electrode as described in the literature. Therefore, there is a possibility that the processing cost of the suction pipe structure including the increase in power consumption and the safety measures during work may further increase.

更に、上記従来技術では、溶接部に大電流を集中して流すために吸入外管にもバーリング加工を施しているものの、これでは吸入外管を密閉容器の内側から挿入し、更に密閉容器の内側にて溶接作業を行わざるを得ず、吸入管構造の組立性や溶接の作業性が悪化して吸入管構造の加工コストの更なる増大を招くとの問題もある。
本発明は、このような課題に鑑みてなされたもので、管構造の加工コストを大幅に低減しつつ、密閉容器と管構造とを抵抗溶接にて接合させることができるスクロール型流体機械を提供することを目的とする。 Furthermore, in the above prior art, the suction outer pipe is also subjected to burring in order to concentrate a large current in the welded portion. However, in this case, the suction outer pipe is inserted from the inside of the sealed container, and further, There is also a problem that welding work must be performed on the inner side, and the assembling property of the suction pipe structure and the workability of welding are deteriorated, resulting in a further increase in the processing cost of the suction pipe structure.
The present invention has been made in view of such problems, and provides a scroll type fluid machine capable of joining a sealed container and a pipe structure by resistance welding while greatly reducing the processing cost of the pipe structure. The purpose is to do.

上記の目的を達成するべく、請求項１記載のスクロール型流体機械は、鉄系材からなる密閉容器と、密閉容器に収容され、電動機により駆動されて作動流体の吸入から吐出の一連のプロセスを実施するスクロールユニットと、密閉容器を貫通する貫通孔を介してスクロールユニットと密閉容器の外側との間で作動流体を流通させる管構造とを備えたスクロール型流体機械であって、管構造は、貫通孔に密閉容器の外側から嵌合され、密閉容器との間で貫通孔を密封するべく接合部を形成するボスと、ボスに内挿されると共にスクロールユニットに挿入され、銅メッキ鉄系材からなる内管と、内管に内挿されると共にボスから密閉容器の外側に向けて突出して配され、銅系材からなる外管とからなり、ボスは、接合部において鉄系材が露出した鉄露出部を有する銅メッキ鉄系材からなることを特徴としている。   In order to achieve the above object, a scroll type fluid machine according to claim 1 includes a sealed container made of an iron-based material, and a series of processes from suction to discharge of working fluid that is housed in the sealed container and driven by an electric motor. A scroll type fluid machine comprising: a scroll unit to be implemented; and a pipe structure that circulates a working fluid between the scroll unit and the outside of the sealed container via a through-hole penetrating the sealed container. A boss that fits into the through hole from the outside of the sealed container and forms a joint to seal the through hole with the sealed container, and is inserted into the boss and inserted into the scroll unit. And an inner tube inserted into the inner tube and projecting from the boss toward the outside of the sealed container, and an outer tube made of a copper-based material. The boss has an iron-based material exposed at the joint. It is characterized in that it consists of copper-plated iron-based material having an exposed portion.

また、請求項２記載の発明では、請求項１において、接合部は、密閉容器の外面とボスの外周側面とで形成されることを特徴としている。
更に、請求項３記載の発明では、請求項１または２において、内管及びボスは、いずれも成形後に銅メッキ処理が施され、ボスの接合部と反対側に形成されるボス端面は、内管の密閉容器の外側に形成される内管端面と略面一に位置づけられることを特徴としている。 Moreover, in invention of Claim 2, in Claim 1, a junction part is formed by the outer surface of an airtight container, and the outer peripheral side surface of a boss | hub, It is characterized by the above-mentioned.
Further, in the invention of claim 3, in claim 1 or 2, the inner tube and the boss are both subjected to copper plating after forming, and the boss end surface formed on the side opposite to the joint portion of the boss is It is characterized by being positioned substantially flush with the end face of the inner pipe formed outside the sealed container of the pipe.

更にまた、請求項４記載の発明では、請求項３において、鉄露出部は、銅メッキ処理の前にマスキング処理を施して形成されることを特徴としている。
また、請求項５記載の発明では、請求項３において、鉄露出部は、銅メッキ処理の後に銅メッキを除去して形成されることを特徴としている。 Furthermore, the invention according to claim 4 is characterized in that, in claim 3, the exposed iron portion is formed by performing a masking process before the copper plating process.
According to a fifth aspect of the present invention, in the third aspect, the exposed iron portion is formed by removing the copper plating after the copper plating process.

請求項１記載の本発明のスクロール型流体機械によれば、ボスが密閉容器との接合部において鉄系材が露出した鉄露出部を有する銅メッキ鉄系材からなることにより、内管及び外管をボスに銅ロー付けできると共に、ボスの密閉容器に対する接合部を抵抗溶接にて形成することができる。これにより、接合部をロー付けで形成した場合に発生する密閉容器内のフラックス除去作業を排除でき、ひいては密閉容器の残留フラックスによる腐食を確実に防止することができる。   According to the scroll type fluid machine of the present invention, the boss is made of a copper-plated iron-based material having an iron-exposed portion where the iron-based material is exposed at the joint portion with the sealed container. The tube can be copper brazed to the boss, and the joint of the boss to the sealed container can be formed by resistance welding. Thereby, it is possible to eliminate the flux removing operation in the sealed container that occurs when the joint portion is formed by brazing, and as a result, it is possible to reliably prevent corrosion due to the residual flux of the sealed container.

しかも、ボスには鉄露出部が予め形成されることから、溶接作業の際にボスの銅メッキを飛ばすために大電流を流す必要はなく、溶接作業に係る電力消費量の低減との安全性の向上を図ることができるため、管構造の組み付け性、ひいてはその加工コストを低減することができる。
請求項２記載の発明によれば、接合部が密閉容器の外面とボスの外周側面とで形成されることにより、密閉容器の外側からボスを嵌合した上で、密閉容器の外側にて接合部を形成するための溶接作業を行うことができるため、管構造の組み付け性、ひいてはその加工コストを更に低減することができる。 In addition, since the exposed iron part is pre-formed on the boss, there is no need to pass a large current in order to skip the copper plating of the boss during the welding operation, and safety with reduced power consumption related to the welding operation. Therefore, it is possible to reduce the assembling property of the pipe structure and the processing cost thereof.
According to invention of Claim 2, after joining a boss | hub from the outer side of an airtight container and joining on the outer side of an airtight container, a junction part is formed with the outer surface of an airtight container, and the outer peripheral side surface of a boss | hub. Since the welding operation for forming the portion can be performed, the assembling property of the pipe structure and the processing cost thereof can be further reduced.

請求項３記載の発明によれば、ボス及び内管は、いずれも成形後に銅メッキ処理が施され、ボスの接合部と反対側に形成されるボス端面は、内管の密閉容器の外側に形成される内管端面と略面一に位置づけられる。これにより、ボスや内管に複雑な加工を要することなく、銅メッキ処理が施されたボス端面及び内管端面にて、ボス及び内管を銅系材からなる外管に一括して銅ロー付けすることができるため、管構造の加工コストをより一層低減することができる。   According to the third aspect of the present invention, the boss and the inner tube are both subjected to copper plating after molding, and the boss end surface formed on the side opposite to the joint portion of the boss is outside the sealed container of the inner tube. It is positioned substantially flush with the inner pipe end face to be formed. As a result, the copper boss and the inner pipe can be combined into an outer pipe made of a copper-based material at the same time on the copper-plated boss end face and inner pipe end face without requiring complicated processing on the boss and the inner pipe. Therefore, the processing cost of the pipe structure can be further reduced.

請求項４記載の発明によれば、鉄露出部が銅メッキ処理の前にマスキング処理を施して形成されることにより、ボスに鉄露出部を容易にして形成することができ、管構造の加工コストを更に低減することができる。
請求項５記載の発明によれば、鉄露出部が銅メッキ処理の後に銅メッキを除去して形成されることにより、ボスを挿入孔に嵌合した際の組み付け誤差に応じて接合部における溶接範囲を微調整できるため、管構造の加工コストを更に低減することができる。 According to the invention of claim 4, the iron exposed portion is formed by performing a masking process before the copper plating process, whereby the iron exposed portion can be easily formed on the boss, and the tube structure is processed. Cost can be further reduced.
According to the invention of claim 5, the iron exposed portion is formed by removing the copper plating after the copper plating treatment, so that welding at the joint portion is performed according to the assembly error when the boss is fitted into the insertion hole. Since the range can be finely adjusted, the processing cost of the pipe structure can be further reduced.

以下、図面により本発明の一実施形態について説明する。
図１は、本実施形態に係るスクロール型流体機械の一例として、密閉型のスクロール圧縮機の要部を示している。この圧縮機１は、冷凍空調装置やヒートポンプ式給湯機などの冷凍回路に組み込まれ、当該回路は作動流体の一例である二酸化炭素冷媒（以下、冷媒という）が循環する経路を備え、圧縮機１は経路から冷媒を吸入し、圧縮して経路に向けて吐出する。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a main part of a hermetic scroll compressor as an example of a scroll fluid machine according to the present embodiment. The compressor 1 is incorporated in a refrigeration circuit such as a refrigeration air conditioner or a heat pump water heater, and the circuit includes a path through which a carbon dioxide refrigerant (hereinafter referred to as a refrigerant), which is an example of a working fluid, circulates. Sucks refrigerant from the path, compresses it, and discharges it toward the path.

圧縮機１は、鉄系金属材料（鉄系材）からなる密閉容器２を備え、密閉容器２は両端が開口した筒状の胴部４と、この胴部４の上端、下端にそれぞれ気密に内嵌される上蓋部６、及び図示しない下蓋部とから構成され、これより胴部４の内部は密閉されて冷媒の吐出圧が作用している。胴部４の適宜位置には冷凍回路から取り込んだ冷媒を吸入する吸入パイプ（外管）８が接続される一方、上蓋部６の適宜位置には密閉容器２内の圧縮冷媒を冷凍回路へ吐出する吐出パイプ１０が接続され、これら吸入及び吐出パイプ８,１０はいずれも銅系金属材料（銅系材）からなる銅管である。   The compressor 1 includes a hermetic container 2 made of an iron-based metal material (iron-based material). The hermetic container 2 is hermetically sealed at a cylindrical body 4 having both ends opened, and at the upper and lower ends of the body 4. It is comprised from the upper cover part 6 and the lower cover part which are not shown in figure, and the inside of the trunk | drum 4 is sealed by this and the discharge pressure of a refrigerant | coolant acts. A suction pipe (outer pipe) 8 for sucking refrigerant taken in from the refrigeration circuit is connected to an appropriate position of the body portion 4, while compressed refrigerant in the sealed container 2 is discharged to the refrigeration circuit at an appropriate position of the upper lid portion 6. A discharge pipe 10 is connected, and the suction and discharge pipes 8 and 10 are both copper pipes made of a copper-based metal material (copper-based material).

胴部４内にはスクロールユニット１２と、当該ユニット１２の下方に配され、回転軸１４を介して当該ユニット１２を駆動する図示しない電動モータ（電動機）とが収容されている。
ユニット１２は、可動スクロール１６及び固定スクロール１８から構成され、これらスクロール１６，１８の各鏡板には対向する渦巻きラップがそれぞれ一体形成されている。 The body 4 houses a scroll unit 12 and an electric motor (not shown) that is arranged below the unit 12 and drives the unit 12 via a rotating shaft 14.
The unit 12 includes a movable scroll 16 and a fixed scroll 18, and opposing scroll plates are integrally formed on the end plates of the scrolls 16 and 18.

そして、これら渦巻きラップが互いに協働し、吸入パイプ８から固定スクロール１８の鏡板に内設された吸入室２０に冷媒を吸入して圧縮室を形成する。圧縮室は、固定スクロール１８に対する可動スクロール１６の公転旋回運動により、各渦巻きラップの中心に向けて移動しながら、その容積を減少させて、冷媒の吸入、圧縮及び吐出の一連のプロセスを実施している。   These spiral wraps cooperate with each other, and suck the refrigerant from the suction pipe 8 into the suction chamber 20 provided in the end plate of the fixed scroll 18 to form a compression chamber. The compression chamber is moved toward the center of each spiral wrap by the revolving orbiting motion of the movable scroll 16 with respect to the fixed scroll 18, and the volume of the compression chamber is reduced to perform a series of refrigerant suction, compression and discharge processes. ing.

可動スクロール１６は、その自転が図示しない自転阻止ピンにより阻止され、胴部４に固定される主軸フレーム２２上を公転旋回運動する。可動スクロール１６に公転旋回運動を付与するため、可動スクロール１６の鏡板の背面側にはボス２４が突出して形成され、それに対向する回転軸１４の上端側には偏心軸２６が一体形成されており、ボス２４は軸受を介して偏心軸２６に回転自在に支持されている。   The movable scroll 16 is prevented from rotating by a rotation prevention pin (not shown) and revolves on the spindle frame 22 fixed to the body 4. In order to impart a revolving orbiting motion to the movable scroll 16, a boss 24 protrudes from the back side of the end plate of the movable scroll 16, and an eccentric shaft 26 is integrally formed at the upper end side of the rotary shaft 14 facing it. The boss 24 is rotatably supported on the eccentric shaft 26 via a bearing.

一方、固定スクロール１８は、胴部４に固定されると共に、固定スクロール１８の鏡板の背面側に形成される冷媒の吐出室２８を圧縮室と区画している。
詳しくは、固定スクロール１８の中央部分の適宜位置には、その鏡板を貫通して吐出孔３０が穿設されており、吐出孔３０は吐出室２８側に配置された吐出弁３２により開閉される。吐出弁３２は吐出カバー３４で覆われ、吐出カバー３４によって圧縮室と吐出室２８とが区画されると共に、吐出弁３２の開弁時における音が抑制される。 On the other hand, the fixed scroll 18 is fixed to the body 4 and partitions a refrigerant discharge chamber 28 formed on the back side of the end plate of the fixed scroll 18 from the compression chamber.
Specifically, a discharge hole 30 is formed at an appropriate position in the central portion of the fixed scroll 18 through the end plate, and the discharge hole 30 is opened and closed by a discharge valve 32 disposed on the discharge chamber 28 side. . The discharge valve 32 is covered with a discharge cover 34, and the compression chamber and the discharge chamber 28 are partitioned by the discharge cover 34, and noise when the discharge valve 32 is opened is suppressed.

上述した圧縮機１によれば、回転軸１４の回転に伴い可動スクロール１６が固定スクロール１８に対して主軸フレーム２２上を公転旋回運動し、これにより吸入パイプ８から吸入室２０に吸入された冷媒がユニット１２の内方に向けて流動しながら圧縮され、圧縮された高圧冷媒が吐出孔３０から吐出されて密閉容器２内を循環した後、吐出室２８から吐出パイプ１０を介して圧縮機１の外部へ送出される。   According to the compressor 1 described above, the movable scroll 16 revolves on the spindle frame 22 with respect to the fixed scroll 18 as the rotary shaft 14 rotates, whereby the refrigerant sucked into the suction chamber 20 from the suction pipe 8. Is compressed while flowing inward of the unit 12, and after the compressed high-pressure refrigerant is discharged from the discharge hole 30 and circulates in the sealed container 2, the compressor 1 is discharged from the discharge chamber 28 through the discharge pipe 10. Sent to outside.

ところで、図２に拡大して示されるように、吸入パイプ８は、吸入ボス（ボス）３６を介して胴部４に接合されると共に、インナーパイプ（内管）３８を介して吸入室２０に連通され、これら吸入ボス３６及びインナーパイプ３８による吸入管構造（管構造）４０を構成している。
吸入ボス３６は、胴部４を貫通する貫通孔４ａに胴部４の外側から嵌合され、胴部４の外面４ｂと吸入ボス３６の外周側面３６ａとの間で貫通孔４ａを密封する接合部４２を形成している。 By the way, as shown in an enlarged view in FIG. 2, the suction pipe 8 is joined to the body 4 via a suction boss (boss) 36, and is connected to the suction chamber 20 via an inner pipe (inner pipe) 38. The suction pipe structure (pipe structure) 40 is constituted by the suction boss 36 and the inner pipe 38.
The suction boss 36 is fitted into a through hole 4 a penetrating the body part 4 from the outside of the body part 4, and is joined to seal the through hole 4 a between the outer surface 4 b of the body part 4 and the outer peripheral side surface 36 a of the suction boss 36. A portion 42 is formed.

一方、インナーパイプ３８は、吸入ボス３６に内挿されると共に固定スクロール１８の鏡板の側面から吸入室２０にかけて穿設される吸入穴１８ａに挿入固定されている。そして、吸入パイプ８は、インナーパイプ３８に内挿されると共に吸入ボス３６から胴部４の外側に向けて突出して配されている。
吸入ボス３６及びインナーパイプ３８は、いずれも鉄系材を成形した後に銅メッキ処理が施された銅メッキ鉄系金属材料（銅メッキ鉄系材）であって、接合部４２の反対側に形成されて胴部４の外側に突出する吸入ボス３６の外端面（ボス端面）３６ｂと、インナーパイプ３８の胴部４の外側に突出する外端面（内管端面）３８ａとは略面一に位置づけられている。これより、銅メッキ処理が施された外端面３６ｂ，３８ａの略全周が銅管である吸入パイプ８に対し一括して銅ロー付けされて銅ロー付け部４４が形成される。 On the other hand, the inner pipe 38 is inserted into the suction boss 36 and is fixedly inserted into a suction hole 18 a drilled from the side surface of the end plate of the fixed scroll 18 to the suction chamber 20. The suction pipe 8 is inserted into the inner pipe 38 and is disposed so as to protrude from the suction boss 36 toward the outside of the body portion 4.
Each of the suction boss 36 and the inner pipe 38 is a copper-plated iron-based metal material (copper-plated iron-based material) that has been subjected to copper plating after molding an iron-based material, and is formed on the opposite side of the joint 42. The outer end surface (boss end surface) 36b of the suction boss 36 that protrudes outside the body portion 4 and the outer end surface (inner tube end surface) 38a that protrudes outside the body portion 4 of the inner pipe 38 are positioned substantially flush with each other. It has been. Thus, the copper brazing portion 44 is formed by collectively brazing the entire circumference of the outer end faces 36b, 38a subjected to the copper plating process to the suction pipe 8 which is a copper pipe.

ここで、吸入ボス３６には、銅メッキ処理が施される銅メッキ部４６の他、接合部４２を抵抗溶接にて形成可能とするべく、鉄系材が剥き出しとなって露出された鉄露出部４８が形成されている。
図３の吸入ボス３６の詳細図には、銅メッキ部４６及び鉄露出部４８の形成範囲が明確に示されている。 Here, in the suction boss 36, in addition to the copper plating part 46 to be subjected to the copper plating process, the iron exposed material is exposed so that the joint part 42 can be formed by resistance welding. A portion 48 is formed.
In the detailed view of the suction boss 36 of FIG. 3, the formation range of the copper plating portion 46 and the iron exposed portion 48 is clearly shown.

銅メッキ部４６は、銅ロー付け部４４を形成するべく、吸入ボス３６の少なくとも外端面３６ｂを含む側に形成される一方、鉄露出部４８は、吸入ボス３６の外端面３６ｂと反対側の内端面３６ｃ側に形成され、特に、吸入ボス３６の外周側面３６ａにおいては、内端面３８ｃから所定の距離Ｌに至る全周に亘って、少なくとも接合部４２を含む範囲に形成されている。   The copper plating portion 46 is formed on the side including at least the outer end surface 36 b of the suction boss 36 to form the copper brazing portion 44, while the iron exposed portion 48 is on the side opposite to the outer end surface 36 b of the suction boss 36. It is formed on the inner end surface 36c side. In particular, the outer peripheral side surface 36a of the suction boss 36 is formed in a range including at least the joint portion 42 over the entire circumference from the inner end surface 38c to a predetermined distance L.

距離Ｌは、吸入ボス３６の貫通孔４ａへの挿入長さと接合部４２の範囲とにより予め設定され、具体的には、吸入ボス３６の銅メッキ処理工程において、吸入ボス３６にマスキング処理を施してから銅メッキ液に浸すことにより、外周側面３６ａにて上記距離Ｌが確保され、ひいては接合部４２を含む範囲に鉄露出部４８が形成される。
また、マスキング処理以外の方法として、吸入ボス３６の全体を銅メッキ液に浸した後に、少なくとも接合部４２を含む範囲の銅メッキを削って除去することにより、鉄露出部４８を形成することも可能である。 The distance L is preset according to the insertion length of the suction boss 36 into the through hole 4a and the range of the joint portion 42. Specifically, in the copper plating process of the suction boss 36, the suction boss 36 is subjected to a masking process. After that, by immersing in the copper plating solution, the distance L is secured on the outer peripheral side surface 36a, and as a result, the iron exposed portion 48 is formed in a range including the joint portion 42.
Further, as a method other than the masking process, after the entire suction boss 36 is immersed in a copper plating solution, the iron exposed portion 48 may be formed by removing and removing the copper plating in a range including at least the joint portion 42. Is possible.

以上のように、本実施形態では、吸入ボス３６が接合部４２において鉄系材が露出した鉄露出部４８を有する銅メッキ鉄系材からなることにより、インナーパイプ３８及び吸入パイプ８を吸入ボス３６に銅ロー付けできると共に、接合部４２を抵抗溶接にて形成することができる。これにより、接合部４２をロー付けで形成した場合に発生する密閉容器２内のフラックス除去作業を排除することができ、ひいては密閉容器２への残留フラックスによる腐食を確実に防止することができる。   As described above, in the present embodiment, the suction boss 36 is made of a copper-plated iron-based material having the iron-exposed portion 48 where the iron-based material is exposed at the joint portion 42, whereby the inner pipe 38 and the suction pipe 8 are connected to the suction boss. 36 can be brazed with copper, and the joint 42 can be formed by resistance welding. Thereby, it is possible to eliminate the flux removal work in the sealed container 2 that occurs when the joining portion 42 is formed by brazing, and as a result, corrosion due to residual flux on the sealed container 2 can be reliably prevented.

しかも、吸入ボス３６には鉄露出部４８が予め形成されることから、溶接作業の際に吸入ボス３６の銅メッキを飛ばすために大電流を流す必要はなく、溶接作業に係る電力消費量の低減との安全性の向上を図ることができるため、吸入管構造４０の組み付け性、ひいてはその加工コストを低減することができる。
また、接合部４２が胴部４の外面４ａと吸入ボス３６の外周側面３６ａとで形成されることにより、胴部４の外側から吸入ボス３６を嵌合した上で、胴部４の外側にて接合部４２を形成するための溶接作業を行うことができるため、吸入管構造４０の組み付け性、ひいてはその加工コストを更に低減することができる。 In addition, since the iron exposed portion 48 is formed in advance on the suction boss 36, it is not necessary to flow a large current in order to skip the copper plating of the suction boss 36 during the welding operation, and the power consumption related to the welding operation is reduced. Since it is possible to improve the safety with the reduction, it is possible to reduce the assembling property of the suction pipe structure 40 and the processing cost thereof.
Further, the joint portion 42 is formed by the outer surface 4 a of the body portion 4 and the outer peripheral side surface 36 a of the suction boss 36, so that the suction boss 36 is fitted from the outside of the body portion 4 and then the outer side of the body portion 4. As a result, a welding operation for forming the joint portion 42 can be performed, so that the assembling property of the suction pipe structure 40 and its processing cost can be further reduced.

更に、吸入ボス３６及びインナーパイプ３８は、いずれも成形後に銅メッキ処理が施され、吸入ボス３６の外端面３６ｂは、インナーパイプ３８の外端面３８ａと略面一に位置づけられる。これにより、吸入ボス３６やインナーパイプ３８に複雑な加工を要することなく、銅メッキ処理が施された外端面３６ｂ，３８ａにて、吸入ボス３６及びインナーパイプ３８を銅管からなる吸入パイプ８に一括して銅ロー付けすることができるため、吸入管構造４０の加工コストをより一層低減することができる。   Further, the suction boss 36 and the inner pipe 38 are both subjected to copper plating after molding, and the outer end surface 36b of the suction boss 36 is positioned substantially flush with the outer end surface 38a of the inner pipe 38. As a result, the suction boss 36 and the inner pipe 38 are made into the suction pipe 8 made of a copper pipe on the outer end surfaces 36b and 38a subjected to the copper plating process without requiring complicated processing on the suction boss 36 and the inner pipe 38. Since the copper brazing can be performed collectively, the processing cost of the suction pipe structure 40 can be further reduced.

更にまた、鉄露出部４８が銅メッキ処理の前にマスキング処理を施して形成されることにより、吸入ボス３６に鉄露出部４８を容易にして形成することができ、吸入管構造４０の加工コストを更に低減することができる。
また、鉄露出部４８が銅メッキ処理の後に銅メッキを除去して形成されることにより、吸入ボス３６を挿入孔４ａに嵌合した際の組み付け誤差に応じて接合部４２における溶接範囲を微調整できるため、吸入管構造４０の加工コストを更に低減することができる。 Furthermore, since the iron exposed portion 48 is formed by performing a masking process before the copper plating process, the iron exposed portion 48 can be easily formed on the suction boss 36, and the processing cost of the suction pipe structure 40 can be increased. Can be further reduced.
Further, since the iron exposed portion 48 is formed by removing the copper plating after the copper plating process, the welding range in the joint portion 42 is reduced according to the assembling error when the suction boss 36 is fitted into the insertion hole 4a. Since the adjustment is possible, the processing cost of the suction pipe structure 40 can be further reduced.

以上で本発明の一実施形態についての説明を終えるが、本発明は上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々の変更ができるものである。
例えば、上記実施形態では、吸入管構造４０について説明しているが、密閉容器に接続される吐出パイプを含めた種々の管構造にも適用可能である。
また、上記実施形態では、二酸化炭素冷媒を用いた冷凍空調装置やヒートポンプ式給湯機などの冷凍回路に組み込まれる密閉型のスクロール圧縮機について説明しているが、これに限らず、種々の作動流体や、種々の分野における密閉型以外の圧縮機又は膨脹機等のスクロール型流体機械にも適用可能である。 The description of one embodiment of the present invention is finished above, but the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the suction pipe structure 40 is described, but the present invention can be applied to various pipe structures including a discharge pipe connected to a sealed container.
Moreover, although the said embodiment demonstrated the sealed scroll compressor incorporated in refrigeration circuits, such as a refrigeration air conditioning apparatus using a carbon dioxide refrigerant, and a heat pump type hot water heater, it is not restricted to this but various working fluids It can also be applied to a scroll type fluid machine such as a compressor or an expander other than the hermetic type in various fields.

本発明の一実施形態に係る密閉型スクロール圧縮機の要部を示した縦断面図である。It is the longitudinal cross-sectional view which showed the principal part of the hermetic scroll compressor which concerns on one Embodiment of this invention. 図１の吸入管構造を拡大して示した縦断面図である。It is the longitudinal cross-sectional view which expanded and showed the suction pipe structure of FIG. 図２の吸入ボスの詳細を示した縦断面図である。It is the longitudinal cross-sectional view which showed the detail of the suction boss | hub of FIG.

符号の説明Explanation of symbols

１ スクロール圧縮機（スクロール型流体機械）
２ 密閉容器
４ａ 貫通孔
４ｂ 外面
８ 吸入パイプ（外管）
１２ スクロールユニット
３６ 吸入ボス（ボス）
３６ａ 外周側面
３６ｂ 外端面（ボス端面）
３８ インナーパイプ（内管）
３８ａ 外端面（内管端面）
４０ 吸入管構造（管構造）
４２ 接合部
４８ 鉄露出部 1 Scroll compressor (scroll type fluid machine)
2 Sealed container 4a Through hole 4b Outer surface 8 Suction pipe (outer pipe)
12 Scroll unit 36 Suction boss (boss)
36a Outer peripheral surface 36b Outer end surface (boss end surface)
38 Inner pipe (inner pipe)
38a Outer end face (Inner pipe end face)
40 Suction pipe structure (pipe structure)
42 Joint 48 Iron exposed part

Claims (5)

鉄系材からなる密閉容器と、該密閉容器に収容され、電動機により駆動されて作動流体の吸入から吐出の一連のプロセスを実施するスクロールユニットと、前記密閉容器を貫通する貫通孔を介して前記スクロールユニットと前記密閉容器の外側との間で前記作動流体を流通させる管構造とを備えたスクロール型流体機械であって、
前記管構造は、前記貫通孔に前記密閉容器の外側から嵌合され、前記密閉容器との間で前記貫通孔を密封するべく接合部を形成するボスと、該ボスに内挿されると共に前記スクロールユニットに挿入され、銅メッキ鉄系材からなる内管と、該内管に内挿されると共に前記ボスから前記密閉容器の外側に向けて突出して配され、銅系材からなる外管とからなり、
前記ボスは、前記接合部において鉄系材が露出した鉄露出部を有する銅メッキ鉄系材からなることを特徴とするスクロール型流体機械。 A sealed container made of an iron-based material, a scroll unit that is housed in the sealed container and is driven by an electric motor to perform a series of processes from suction to discharge of the working fluid, and the through-holes that penetrate the sealed container A scroll type fluid machine comprising a scroll unit and a pipe structure for allowing the working fluid to flow between the outside of the sealed container,
The tube structure is fitted into the through-hole from the outside of the sealed container, and forms a joint to seal the through-hole with the sealed container, and is inserted into the boss and the scroll. An inner tube made of copper-plated iron-based material inserted into the unit, and an outer tube made of copper-based material that is inserted into the inner tube and protrudes from the boss toward the outside of the sealed container. ,
The scroll fluid machine according to claim 1, wherein the boss is made of a copper-plated iron-based material having an iron exposed portion where the iron-based material is exposed at the joint. 前記接合部は、前記密閉容器の外面と前記ボスの外周側面とで形成されることを特徴とする請求項１に記載のスクロール型流体機械。   The scroll type fluid machine according to claim 1, wherein the joint portion is formed by an outer surface of the sealed container and an outer peripheral side surface of the boss. 前記ボス及び前記内管は、いずれも成形後に銅メッキ処理が施され、
前記ボスの前記接合部と反対側に形成されるボス端面は、前記内管の前記密閉容器の外側に形成される内管端面と略面一に位置づけられることを特徴とする請求項１または２に記載のスクロール型流体機械。 The boss and the inner tube are both subjected to copper plating after molding,
The boss end surface formed on the opposite side to the joint portion of the boss is positioned substantially flush with the inner tube end surface formed on the outer side of the sealed container of the inner tube. A scroll type fluid machine as described in 1. 前記鉄露出部は、前記銅メッキ処理の前にマスキング処理を施して形成されることを特徴とする請求項３に記載のスクロール型流体機械。   The scroll type fluid machine according to claim 3, wherein the iron exposed portion is formed by performing a masking process before the copper plating process. 前記鉄露出部は、前記銅メッキ処理の後に銅メッキを除去して形成されることを特徴とする請求項３に記載のスクロール型流体機械。   The scroll type fluid machine according to claim 3, wherein the iron exposed portion is formed by removing copper plating after the copper plating treatment.
JP2007231450A 2007-09-06 2007-09-06 Scroll type fluid machinery Expired - Fee Related JP5222441B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2007231450A JP5222441B2 (en) 2007-09-06 2007-09-06 Scroll type fluid machinery
EP08829203.2A EP2192303B1 (en) 2007-09-06 2008-08-28 Scroll type fluid machine
PCT/JP2008/065434 WO2009031452A1 (en) 2007-09-06 2008-08-28 Scroll type fluid machine
AU2008294163A AU2008294163B2 (en) 2007-09-06 2008-08-28 Scroll type fluid machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007231450A JP5222441B2 (en) 2007-09-06 2007-09-06 Scroll type fluid machinery

Publications (2)

Publication Number Publication Date
JP2009062876A true JP2009062876A (en) 2009-03-26
JP5222441B2 JP5222441B2 (en) 2013-06-26

Family

ID=40428773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007231450A Expired - Fee Related JP5222441B2 (en) 2007-09-06 2007-09-06 Scroll type fluid machinery

Country Status (4)

Country Link
EP (1) EP2192303B1 (en)
JP (1) JP5222441B2 (en)
AU (1) AU2008294163B2 (en)
WO (1) WO2009031452A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022092290A1 (en) * 2020-10-30 2022-05-05 ダイキン工業株式会社 Rotary compressor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102374170B (en) * 2010-08-04 2016-08-03 松下电器产业株式会社 Hermetic type compressor
KR102630535B1 (en) * 2022-03-03 2024-01-29 엘지전자 주식회사 Scroll compressor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137785U (en) * 1981-02-23 1982-08-28
JPH1113671A (en) * 1997-06-30 1999-01-19 Matsushita Electric Ind Co Ltd Closed compressor
JPH1154645A (en) * 1997-07-30 1999-02-26 Sharp Corp Stem for semiconductor device and manufacture thereof
JP2000106168A (en) * 1998-09-30 2000-04-11 Sanyo Electric Co Ltd Alkaline storage battery
JP2004225614A (en) * 2003-01-23 2004-08-12 Mitsubishi Electric Corp Sealed compressor, recycling method for sealed compressor, and shredding apparatus for sealed-type compressor
JP2005048682A (en) * 2003-07-30 2005-02-24 Matsushita Electric Ind Co Ltd Hermetic compressor
JP2006342676A (en) * 2005-06-07 2006-12-21 Matsushita Electric Ind Co Ltd Hermetic compressor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY120330A (en) * 1997-06-30 2005-10-31 Matsushita Electric Ind Co Ltd Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing
JP2002155861A (en) * 2000-11-20 2002-05-31 Matsushita Electric Ind Co Ltd Bearing, method of manufacturing the same, and refrigerant compressor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137785U (en) * 1981-02-23 1982-08-28
JPH1113671A (en) * 1997-06-30 1999-01-19 Matsushita Electric Ind Co Ltd Closed compressor
JPH1154645A (en) * 1997-07-30 1999-02-26 Sharp Corp Stem for semiconductor device and manufacture thereof
JP2000106168A (en) * 1998-09-30 2000-04-11 Sanyo Electric Co Ltd Alkaline storage battery
JP2004225614A (en) * 2003-01-23 2004-08-12 Mitsubishi Electric Corp Sealed compressor, recycling method for sealed compressor, and shredding apparatus for sealed-type compressor
JP2005048682A (en) * 2003-07-30 2005-02-24 Matsushita Electric Ind Co Ltd Hermetic compressor
JP2006342676A (en) * 2005-06-07 2006-12-21 Matsushita Electric Ind Co Ltd Hermetic compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022092290A1 (en) * 2020-10-30 2022-05-05 ダイキン工業株式会社 Rotary compressor
JP2022072831A (en) * 2020-10-30 2022-05-17 ダイキン工業株式会社 Rotary type compressor
JP7206506B2 (en) 2020-10-30 2023-01-18 ダイキン工業株式会社 rotary compressor
CN116348675A (en) * 2020-10-30 2023-06-27 大金工业株式会社 Rotary compressor
US11965678B2 (en) 2020-10-30 2024-04-23 Daikin Industries, Ltd. Rotary compressor

Also Published As

Publication number Publication date
WO2009031452A1 (en) 2009-03-12
EP2192303A4 (en) 2015-05-20
AU2008294163B2 (en) 2012-01-19
AU2008294163A1 (en) 2009-03-12
EP2192303B1 (en) 2016-12-07
JP5222441B2 (en) 2013-06-26
EP2192303A1 (en) 2010-06-02

Similar Documents

Publication Publication Date Title
JP5222441B2 (en) Scroll type fluid machinery
WO2012132164A1 (en) Scroll compressor
JP2006152933A (en) Hermetic scroll compressor
JP2012207622A (en) Scroll type compressor
JP2007092643A (en) Rotary compressor and method for manufacturing rotary compressor
JP2006342676A (en) Hermetic compressor
JP5935579B2 (en) Positive displacement compressor
JP2010084688A (en) Hermetic fluid machine
JP5012110B2 (en) Sealed container and method for manufacturing sealed container
JP2007291972A (en) Method of manufacturing compressor and compressor
JP6182001B2 (en) Positive displacement compressor
JP5180698B2 (en) Scroll type fluid machinery
JP2006226242A (en) Hermetic rotary compressor
JP2005140064A (en) Electric compressor
JP2010007551A (en) Scroll fluid machine and its method for manufacturing
JP4236400B2 (en) Defroster for refrigerant circuit
JP2008121600A (en) Hermetic compressor
JP2006077701A (en) Hermetic-type compressor
WO2015125253A1 (en) Scroll compressor and refrigeration cycle device using same
KR100556957B1 (en) Accumulator connecting apparatus for rotary compressor
JP2011236747A (en) Hermetic compressor
JP2008297977A (en) Scroll type fluid machine
JP2004332614A (en) Fluid machinery
JP2005048682A (en) Hermetic compressor
JP2003254272A (en) Rotary compressor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100219

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120411

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120608

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120926

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20121126

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20130220

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130309

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

Free format text: PAYMENT UNTIL: 20160315

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5222441

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees