JP2005009458A - Compressor - Google Patents

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Publication number
JP2005009458A
JP2005009458A JP2003177217A JP2003177217A JP2005009458A JP 2005009458 A JP2005009458 A JP 2005009458A JP 2003177217 A JP2003177217 A JP 2003177217A JP 2003177217 A JP2003177217 A JP 2003177217A JP 2005009458 A JP2005009458 A JP 2005009458A
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Japan
Prior art keywords
accumulator
compressor
inner peripheral
refrigerant passage
thin plate
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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.)
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JP2003177217A
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Japanese (ja)
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JP3844244B2 (en
Inventor
Izumi Onoda
泉 小野田
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Toshiba Carrier Corp
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Toshiba Carrier Corp
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Priority to JP2003177217A priority Critical patent/JP3844244B2/en
Publication of JP2005009458A publication Critical patent/JP2005009458A/en
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    • 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
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • 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
    • F04C23/001—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 of similar working principle
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/804—Accumulators for refrigerant circuits

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compressor with a small sized accumulator reducing the noise generation and improving productivity. <P>SOLUTION: The compressor is equipped with the accumulator, and the accumulator is fixed to an inlet pipe and an outlet pipe connected to a cylindrical container body and an inner peripheral surface of the container body. The compressor also partially has a recessed part projecting to the inner peripheral side and consists of a thin plate cylinder body forming a refrigerant passage between the recessed part and the inner peripheral surface to allow the refrigerant flowing in the container body from the inlet pipe to flow out from the outlet pipe through the refrigerant passage. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は圧縮機に係わり、特に構造を改良したアキュムレータを具備した圧縮機に関する。
【０００２】
【従来の技術】
一般に冷凍サイクルを構成するロータリ圧縮機にガス冷媒及び油を供給するアキュムレータが用いられている。特許文献１のアキュムレータのように、垂直に延びる軸心を有する縦型ロータリ圧縮機と同様に、立設されて使用されるアキュムレータがある。しかし、このアキュムレータの内容積を大きくしようとすると、その垂直方向の寸法が長くなり、その上部が圧縮機の上端面から上方に突出するため、アキュムレータ用の拡大したスペースが必要となり、その分、アキュムレータが取付けられた圧縮機が大型化してしまう問題があり、また、このアキュムレータは圧縮機本体からの振動や吸込み脈動によって振動、容器本体下部や片持ちの銅パイプが共振し易く、騒音発生の原因になり、さらに、製造時には容器本体やスクリーンは安価な炉中ロー付けで組立てされるが、融点の低い銅パイプは大気中でのロー付け作業によって組立てられる場合が多く、このためパイプは上下容器本体が組立てられた後に、挿入されるため、手作業になり易く生産性が悪い。また、特許文献２に記載のように、垂直に延びる軸心を有するロータリ圧縮機と同様に、横設されて使用されるアキュムレータがある。しかし、このアキュムレータはその高さは低くなるが、構造が複雑であり、生産性も良くない。
【０００３】
【特許文献１】
実開平５−３０４９２号公報（段落番号［００１８］、［００２０］、［００２２］、図１）
【０００４】
【特許文献２】
特開平９−２６８９９１号公報（段落番号［００２０］〜［００２３］、［００２７］、図２）
【０００５】
【発明が解決しようとする課題】
本発明は上述した事情を考慮してなされたもので、小型で騒音の発生が低減され、生産性向上を図ったアキュムレータを具備した圧縮機を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上記目的を達成するため、本発明の１つの態様によれば、アキュムレータを具備した圧縮機において、前記アキュムレータは、円筒状の容器本体と、この容器本体に接続された入口管及び出口管と、前記容器本体の内周面に固定されるとともに一部に内周側に突出する凹部を有し前記内周面との間に冷媒通路を形成する薄板円筒体とからなり、前記入口管から前記容器本体に流入した冷媒を前記冷媒通路を介して前記出口管から流出させるようにしたことを特徴とする圧縮機が提供される。これにより、小型で騒音の発生が低減され、生産性向上を図ったアキュムレータを具備した圧縮機が実現される。
【０００７】
好適な一例では、前記アキュムレータの薄板円筒体を略円形状とし、カップ内径と５０％以上を内接もしくは微小間隙を持たせて配置させ、両部品間を銅合金等の溶接材によって一部を固着る。これにより、薄板円筒体は補強され、両者間の干渉制振の発生が防止されて騒音が低減され、さらに、主要部分が全て板金製であるため、安価な炉中ロー付け方式が可能となり組立コストの低減が図れ、また、生産性が向上する。
【０００８】
また、他の好適な一例では、前記アキュムレータの中心軸線が略水平方向になるように容器本体を横置に配置するとともに、前記冷媒通路の入口部を、上部に位置させる。これにより、横型圧縮機の場合にも入口部を最も内容積が確保できる場所に設けることが可能となる。
【０００９】
【発明の実施の形態】
以下、本発明に係わる圧縮機の第１実施形態について添付図面を参照して説明する。
【００１０】
図１は本発明に係わる圧縮機の第１実施形態に用いられるアキュムレータの縦断面図、図２はその分解図である。
【００１１】
図１及び図２に示すように、本発明に係わる圧縮機に用いられるアキュムレータ１は、縦型アキュムレータで、上容器２ａと下容器２ｂからなる円筒状の容器本体２と、この容器本体２に接続された入口管３及び出口管４、４と、入口管３に対向して配設されたスクリーン部材５と、スクリーン部材５との間に通気間隙２ｇが形成されるように容器本体２の内周面２ｘに固定された容器状の薄板円筒体６と有しており、薄板円筒体６は容器本体２に板厚よりも薄い板厚であり、その一部が内周側に突出する凹部６ａが形成され、下部には油戻し孔６ｂが形成されており、凹部６ａが設けられることにより、内周面２ｘと薄板円筒体６の間に冷媒通路７が形成されている。
【００１２】
このように冷媒通路７は、内周面２ｘと凹部６ａにより形成されるので、従来必要とされるような冷媒流出管を容器本体内に設ける必要がなく、騒音低減が図れ、また、生産性が向上する。
【００１３】
薄板円筒体６の外周部６ｘは、容器本体２の内周面２ｘと５０％以上に渡って接触もしくは微小間隙を持たせて保持されており、容器本体２及び薄板円筒体６は、銅合金等の溶接材によってそれらの一部が固着されている。
【００１４】
これにより、薄板円筒体６は補強され、両者間の干渉制振の発生が防止されて騒音が低減され、さらに、主要部分が全て板金製であるため、安価な炉中ロー付け方式が可能となり組立コストの低減が図れ、また、生産性が向上する。
【００１５】
上記構造を有するアキュムレータ１は、図３に示すように、本発明に係わる縦型ロータリ圧縮機２１に組込まれて使用される。
【００１６】
この本発明に係わる縦型ロータリ圧縮機２１は、密閉ケーシング２２内の上部に収容された電動機部２３と、この電動機部２３にクランクシャフト２４を介して駆動され、かつ、密閉ケーシング２２内の下部に収容され冷媒を圧縮する圧縮機部２５を有し、この圧縮機部２５は、２個のシリンダ２６、２７を有している。また、ケーシング２２の底部には油面が下側のシリンダ２７の上面と略一致するように潤滑油２８が溜められ、オイルポンプ（図示せず）の働きで潤滑油２８をクランクシャフト２５の内部に汲上げ、ケーシング２２内に散布して、各摺動部分等に潤滑油２８を供給するようになっている。
【００１７】
さらに、２個のシリンダ２６、２７には、アキュムレータ１の出口管４、４が接続され、ガス冷媒及び油をアキュムレータ１に供給するようになっている。
【００１８】
本発明に係わる圧縮機に用いられるアキュムレータ１は、上記構造を有するので、図１及び図３に示すように冷凍サイクルを流れたガス冷媒及び油は、圧縮機用アキュムレータ１の入口管３から容器本体２内に流入する。容器本体２内に流入したガス冷媒及び油は、スクリーン部材５を通過して濾過され、薄板円筒体６に流入する。さらに、薄板円筒体６に流入したガス冷媒及び油は分離され、ガス冷媒はスクリーン部材５と薄板円筒体６の上端間に形成される通気間隙２ｇを通って冷媒通路７に流れて、出口管４、４を介して２個のシリンダ２６、２７に達し、圧縮される。残りの液冷媒は気化して上記同様に、また、分離された油は油戻し孔６ｂ、冷媒通路７、出口管４、４を介して、逐次２個のシリンダ２６、２７に戻される。
【００１９】
上記のような冷媒のアキュムレータ通過過程において、冷媒通路７は、内周面２ｘと凹部６ａにより形成されるので、従来必要とされるような冷媒流出管を容器本体内に設ける必要がなく、冷媒流出管に起因する騒音の低減、また、容器本体と薄板円筒体間の干渉制振の発生が防止されて騒音の低減が図れる。
【００２０】
次に本発明に係わる圧縮機の第２実施形態について説明する。
【００２１】
上記第１実施形態に用いられるアキュムレータが縦型であるのに対して、本第２実施形態に用いられるアキュムレータは横型である。
【００２２】
例えば、図４及び図５に示すように、出口管４Ａが設けられた出口側容器２Ａｂには、一部が内周側に突出する凹部６Ａａが螺旋状に形成された薄板円筒体６Ａが内装されており、出口側容器２Ａｂと薄板円筒体６Ａ間に冷媒通路７Ａが形成されている。また、冷媒通路７Ａの入口部７Ａａは、薄板円筒体６Ａの上部、例えば最上部に位置されている。他の構成は図１に示すアキュムレータと異ならないので、同一符号を付して説明は省略する。
【００２３】
従って、冷媒通路７Ａは出口側容器２Ａｂと薄板円筒体６Ａ間に形成されているため、横型ロータリ圧縮機の場合にも入口部７Ａａを最も内容積が確保できる場所に設けることが可能となる。また、従来横型ロータリ圧縮機はスペース確保が難しい機器に用いられる場合が多いが、アキュムレータのコンパクト化により、横型ロータリ圧縮機の据付けも容易になる。さらに、吸込みパイプの長さを任意に取れるため、吸込み効率を考慮した最適設計が可能となる。また、設置高さが増加して設置スペースが上下方向に拡がるのを防止しつつ、圧縮機の軸心と平行な横方向（水平方向）に延ばすことによって、その容積を大きくすることができ、しかも容器本体のより有効利用を図って、小型化を図ることができる。カップの形状を従来のものとほぼ同じ形状にすることによって、通常のアキュムレータ取付け用の取付け金具をそのまま使用して、圧縮機に取付けることができる。
【００２４】
【発明の効果】
本発明に係わる圧縮機によれば、小型で騒音の発生が低減され、生産性向上を図ったアキュムレータを具備した圧縮機を提供することができる。
【図面の簡単な説明】
【図１】本発明に係わる圧縮機の第１実施形態に用いられるアキュムレータの縦断面図。
【図２】本発明に係わる圧縮機の第１実施形態に用いられるアキュムレータの分解図。
【図３】本発明に係わる圧縮機の第１実施形態の縦断面図。
【図４】本発明に係わる圧縮機の第２実施形態に用いられるアキュムレータの縦断面図。
【図５】本発明に係わる圧縮機の第２実施形態に用いられるアキュムレータの分解図。
【符号の説明】
１…アキュムレータ、２…容器本体、３…入口管、４…出口管、５…スクリーン部材、６…薄板円筒体、６ａ…凹部、７…冷媒通路、２１…縦型ロータリ圧縮機、２３…電動機部、２５…圧縮機部、２６…シリンダ、２７…シリンダ。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a compressor, and more particularly to a compressor provided with an accumulator having an improved structure.
[0002]
[Prior art]
In general, an accumulator for supplying a gas refrigerant and oil to a rotary compressor constituting a refrigeration cycle is used. As in the accumulator of Patent Document 1, there is an accumulator that is erected and used in the same manner as a vertical rotary compressor having a vertically extending axis. However, when trying to increase the internal volume of this accumulator, its vertical dimension becomes longer and its upper part protrudes upward from the upper end surface of the compressor, so an enlarged space for the accumulator is required, and accordingly, There is a problem that the compressor to which the accumulator is attached is enlarged, and this accumulator is vibrated by vibration from the compressor body and suction pulsation, and the lower part of the container body and the cantilevered copper pipe are likely to resonate, and noise is generated. In addition, at the time of manufacture, the container body and screen are assembled by brazing in an inexpensive furnace, but copper pipes with a low melting point are often assembled by brazing in the atmosphere, so the pipes are Since the container body is inserted after being assembled, it is likely to be a manual operation and the productivity is poor. Further, as described in Patent Document 2, there is an accumulator that is used in a horizontal manner, like a rotary compressor having a vertically extending axis. However, this accumulator is low in height, but has a complicated structure and poor productivity.
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 5-30492 (paragraph numbers [0018], [0020], [0022], FIG. 1)
[0004]
[Patent Document 2]
JP-A-9-268991 (paragraph numbers [0020] to [0023], [0027], FIG. 2)
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a compressor having an accumulator that is small in size, reduced in noise generation, and improved in productivity.
[0006]
[Means for Solving the Problems]
To achieve the above object, according to one aspect of the present invention, in a compressor including an accumulator, the accumulator includes a cylindrical container body, an inlet pipe and an outlet pipe connected to the container body, A thin plate cylindrical body that is fixed to the inner peripheral surface of the container body and has a concave portion protruding in part on the inner peripheral side to form a refrigerant passage between the inner peripheral surface, and from the inlet pipe There is provided a compressor characterized in that the refrigerant flowing into the container main body is caused to flow out of the outlet pipe through the refrigerant passage. As a result, a compressor having an accumulator that is small in size, reduced in noise generation, and improved in productivity is realized.
[0007]
In a preferred example, the thin plate cylindrical body of the accumulator is formed in a substantially circular shape, and the cup inner diameter and 50% or more are arranged with inscribed or minute gaps, and a part of both parts is welded with a copper alloy or the like. Stick. As a result, the thin cylindrical body is reinforced, the occurrence of interference vibration suppression between the two is prevented, noise is reduced, and since the main part is all made of sheet metal, an inexpensive in-furnace brazing method is possible and assembly. Costs can be reduced and productivity can be improved.
[0008]
In another preferable example, the container main body is disposed horizontally so that the central axis of the accumulator is in a substantially horizontal direction, and the inlet portion of the refrigerant passage is positioned at the upper portion. As a result, even in the case of a horizontal compressor, the inlet portion can be provided at a place where the inner volume can be secured most.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of a compressor according to the present invention will be described with reference to the accompanying drawings.
[0010]
FIG. 1 is a longitudinal sectional view of an accumulator used in a first embodiment of a compressor according to the present invention, and FIG. 2 is an exploded view thereof.
[0011]
As shown in FIGS. 1 and 2, the accumulator 1 used in the compressor according to the present invention is a vertical accumulator, and includes a cylindrical container body 2 composed of an upper container 2 a and a lower container 2 b, and the container body 2. The container body 2 is formed so that a ventilation gap 2g is formed between the connected inlet pipe 3 and outlet pipes 4, 4 and the screen member 5 disposed opposite to the inlet pipe 3. It has a container-like thin plate cylinder 6 fixed to the inner peripheral surface 2x, and the thin plate cylinder 6 has a plate thickness thinner than the plate thickness in the container main body 2, and a part thereof protrudes to the inner peripheral side. A recess 6a is formed, and an oil return hole 6b is formed in the lower part. By providing the recess 6a, a refrigerant passage 7 is formed between the inner peripheral surface 2x and the thin plate cylinder 6.
[0012]
Thus, since the refrigerant passage 7 is formed by the inner peripheral surface 2x and the recess 6a, there is no need to provide a refrigerant outflow pipe in the container body as required in the prior art, noise reduction can be achieved, and productivity is improved. Will improve.
[0013]
The outer peripheral portion 6x of the thin plate cylindrical body 6 is held in contact with the inner peripheral surface 2x of the container body 2 over 50% or with a minute gap. The container main body 2 and the thin plate cylindrical body 6 are made of a copper alloy. Some of them are fixed by welding materials such as.
[0014]
As a result, the thin plate cylinder 6 is reinforced, the occurrence of interference vibration suppression between the two is prevented, noise is reduced, and since the main parts are all made of sheet metal, an inexpensive in-furnace brazing method is possible. Assembly cost can be reduced and productivity is improved.
[0015]
As shown in FIG. 3, the accumulator 1 having the above structure is used by being incorporated in a vertical rotary compressor 21 according to the present invention.
[0016]
The vertical rotary compressor 21 according to the present invention includes an electric motor unit 23 housed in an upper part of a hermetic casing 22, a motor unit 23 driven by a crankshaft 24, and a lower part of the hermetic casing 22. And a compressor unit 25 that compresses the refrigerant. The compressor unit 25 includes two cylinders 26 and 27. A lubricating oil 28 is stored at the bottom of the casing 22 so that the oil level substantially coincides with the upper surface of the lower cylinder 27, and the lubricating oil 28 is placed inside the crankshaft 25 by the action of an oil pump (not shown). The oil is pumped up and sprayed into the casing 22 to supply the lubricating oil 28 to each sliding portion.
[0017]
Further, the outlet pipes 4 and 4 of the accumulator 1 are connected to the two cylinders 26 and 27 so as to supply gas refrigerant and oil to the accumulator 1.
[0018]
Since the accumulator 1 used in the compressor according to the present invention has the above-described structure, the gas refrigerant and oil flowing through the refrigeration cycle are transferred from the inlet pipe 3 of the compressor accumulator 1 to the container as shown in FIGS. It flows into the main body 2. The gas refrigerant and oil that have flowed into the container body 2 pass through the screen member 5, are filtered, and flow into the thin plate cylinder 6. Further, the gas refrigerant and the oil flowing into the thin plate cylinder 6 are separated, and the gas refrigerant flows into the refrigerant passage 7 through the ventilation gap 2g formed between the screen member 5 and the upper end of the thin plate cylinder 6, and then exits the outlet pipe. The two cylinders 26 and 27 are reached through 4 and 4 and compressed. The remaining liquid refrigerant is vaporized in the same manner as described above, and the separated oil is sequentially returned to the two cylinders 26 and 27 via the oil return hole 6b, the refrigerant passage 7, and the outlet pipes 4 and 4.
[0019]
In the refrigerant passing process as described above, the refrigerant passage 7 is formed by the inner peripheral surface 2x and the concave portion 6a, so that it is not necessary to provide a refrigerant outflow pipe in the container body as conventionally required. Reduction of noise caused by the outflow pipe and generation of interference vibration suppression between the container main body and the thin plate cylinder can be prevented, thereby reducing noise.
[0020]
Next, a second embodiment of the compressor according to the present invention will be described.
[0021]
While the accumulator used in the first embodiment is a vertical type, the accumulator used in the second embodiment is a horizontal type.
[0022]
For example, as shown in FIGS. 4 and 5, the outlet side container 2Ab provided with the outlet pipe 4A is internally provided with a thin cylindrical body 6A in which a concave portion 6Aa that protrudes inward on the inner peripheral side is formed in a spiral shape. A refrigerant passage 7A is formed between the outlet side container 2Ab and the thin plate cylindrical body 6A. Further, the inlet portion 7Aa of the refrigerant passage 7A is located at the upper portion, for example, the uppermost portion of the thin plate cylindrical body 6A. Since the other configuration is not different from the accumulator shown in FIG.
[0023]
Therefore, since the refrigerant passage 7A is formed between the outlet side container 2Ab and the thin cylindrical body 6A, the inlet portion 7Aa can be provided at a place where the inner volume can be secured most even in the case of a horizontal rotary compressor. Conventional horizontal rotary compressors are often used in devices where it is difficult to secure space, but the installation of the horizontal rotary compressor is facilitated by downsizing the accumulator. Furthermore, since the length of the suction pipe can be arbitrarily set, an optimum design considering the suction efficiency is possible. In addition, while preventing the installation height from increasing and the installation space from expanding in the vertical direction, the volume can be increased by extending in the lateral direction (horizontal direction) parallel to the axial center of the compressor, In addition, the container body can be more effectively used and downsized. By making the shape of the cup almost the same as that of the conventional one, it is possible to attach the accumulator to the compressor using the usual attachment fitting for accumulator.
[0024]
【The invention's effect】
According to the compressor according to the present invention, it is possible to provide a compressor having an accumulator that is small in size, reduced in noise generation, and improved in productivity.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an accumulator used in a first embodiment of a compressor according to the present invention.
FIG. 2 is an exploded view of the accumulator used in the first embodiment of the compressor according to the present invention.
FIG. 3 is a longitudinal sectional view of a first embodiment of a compressor according to the present invention.
FIG. 4 is a longitudinal sectional view of an accumulator used in a second embodiment of a compressor according to the present invention.
FIG. 5 is an exploded view of an accumulator used in a second embodiment of the compressor according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Accumulator, 2 ... Container main body, 3 ... Inlet pipe, 4 ... Outlet pipe, 5 ... Screen member, 6 ... Thin plate cylindrical body, 6a ... Recessed part, 7 ... Refrigerant passage, 21 ... Vertical rotary compressor, 23 ... Electric motor Part, 25 ... compressor part, 26 ... cylinder, 27 ... cylinder.

Claims (3)

アキュムレータを具備した圧縮機において、前記アキュムレータは、円筒状の容器本体と、この容器本体に接続された入口管及び出口管と、前記容器本体の内周面に固定されるとともに一部に内周側に突出する凹部を有し前記内周面との間に冷媒通路を形成する薄板円筒体とからなり、前記入口管から前記容器本体に流入した冷媒を前記冷媒通路を介して前記出口管から流出させるようにしたことを特徴とする圧縮機。In the compressor provided with the accumulator, the accumulator is fixed to a cylindrical container main body, an inlet pipe and an outlet pipe connected to the container main body, and an inner peripheral surface of the container main body, and partially has an inner periphery. A thin plate cylindrical body having a concave portion protruding to the side and forming a refrigerant passage between the inner peripheral surface and the refrigerant flowing into the container body from the inlet pipe through the refrigerant passage from the outlet pipe A compressor characterized by being allowed to flow out. 請求項１に記載の圧縮機において、前記アキュムレータの薄板円筒体を略円形状とし、カップ内径と５０％以上を内接もしくは微小間隙を持たせて配置させ、両部品間を銅合金等の溶接材によって一部を固着させたことを特徴とする圧縮機。2. The compressor according to claim 1, wherein the thin plate cylindrical body of the accumulator has a substantially circular shape, and is arranged with a cup inner diameter and 50% or more inscribed or provided with a minute gap, and a weld of a copper alloy or the like between the two parts. A compressor characterized in that a part is fixed by a material. 請求項１または２に記載の圧縮機において、前記アキュムレータの中心軸線が略水平方向になるように容器本体を横置に配置するとともに、前記冷媒通路の入口部を、上部に位置させたことを特徴とする圧縮機。3. The compressor according to claim 1, wherein the container main body is disposed horizontally so that a central axis of the accumulator is in a substantially horizontal direction, and an inlet portion of the refrigerant passage is positioned at an upper portion. Features compressor.
JP2003177217A 2003-06-20 2003-06-20 Compressor Expired - Fee Related JP3844244B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1715189A1 (en) * 2005-04-22 2006-10-25 Kaeser Kompressoren GmbH Noise attenuator designed and meant for a compressor
EP1715188A1 (en) * 2005-04-22 2006-10-25 Kaeser Kompressoren GmbH Noise attenuator designed and meant for a compressor
CN103671124A (en) * 2013-11-13 2014-03-26 无锡市张泾压力容器制造有限公司 Inlet silencer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1715189A1 (en) * 2005-04-22 2006-10-25 Kaeser Kompressoren GmbH Noise attenuator designed and meant for a compressor
EP1715188A1 (en) * 2005-04-22 2006-10-25 Kaeser Kompressoren GmbH Noise attenuator designed and meant for a compressor
US8142172B2 (en) 2005-04-22 2012-03-27 Kaeser Kompressoren Gmbh Silencer designed and intended for a compressor
CN103671124A (en) * 2013-11-13 2014-03-26 无锡市张泾压力容器制造有限公司 Inlet silencer
CN103671124B (en) * 2013-11-13 2015-10-21 无锡市张泾压力容器制造有限公司 Intake silencer

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