JP2001280241A - Hermetically sealed compressor - Google Patents

Hermetically sealed compressor

Info

Publication number
JP2001280241A
JP2001280241A JP2000095152A JP2000095152A JP2001280241A JP 2001280241 A JP2001280241 A JP 2001280241A JP 2000095152 A JP2000095152 A JP 2000095152A JP 2000095152 A JP2000095152 A JP 2000095152A JP 2001280241 A JP2001280241 A JP 2001280241A
Authority
JP
Japan
Prior art keywords
cover
compression mechanism
discharge port
discharge
closed container
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
JP2000095152A
Other languages
Japanese (ja)
Other versions
JP4246353B2 (en
Inventor
Hiroshi Matsunaga
寛 松永
Keisuke Morita
恵介 森田
Manabu Sakai
学 阪井
Yushi Hashimoto
雄史 橋本
Hideyuki Kanzaki
秀幸 神崎
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2000095152A priority Critical patent/JP4246353B2/en
Publication of JP2001280241A publication Critical patent/JP2001280241A/en
Application granted granted Critical
Publication of JP4246353B2 publication Critical patent/JP4246353B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • 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

Landscapes

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

Abstract

PROBLEM TO BE SOLVED: To improve a silencing effect without increasing the number of part items and causing bulkiness. SOLUTION: In compressing fluid sucked from outside a sealed vessel C into a compression mechanism A and discharging the fluid into one side 12 of the sealed vessel partitioned by the compression mechanism A to discharge into the outside of the hermetic container C, one of the fluids discharged from first and second discharge ports 5a and 5b facing opposite sides of the sealed vessel C in the compression mechanism A is discharged into the side 12 of the sealed vessel C after sequentially passing first and second covers 21 and 22 forming a double structure to cover the discharge port 5a from inside and outside, while the other discharged fluid is discharged from at least one third cover 23 covering the second discharge port 5b into the second cover 22 to join and discharged into the side 12 of the sealed vessel C.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は密閉型圧縮機に関
し、詳しくは密閉容器に収容した圧縮機構から密閉容器
内への吐出口にカバーを設けた消音構造を有する密閉型
圧縮機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor, and more particularly to a hermetic compressor having a silencing structure in which a cover is provided at a discharge port from a compression mechanism housed in a hermetic container to the hermetic container. .

【０００２】[0002]

【従来の技術】上記のような密閉型圧縮機に採用される
圧縮機構は、特開平０７−７７１８６、７号公報などに
開示されているように密閉容器内への吐出口にカバーが
設けられ、圧縮機構で圧縮したガスが吐出口のリードバ
ルブを押し開けて繰り返し脈動的に吐出する際に生じる
音を低く抑えるようにしている。これにより、家庭や乗
り物など住空間一般の空調用に用いるのに静音運転がで
きる。なお、上記公報に記載の技術は、上下２つのシリ
ンダの上シリンダにある上吐出口に対しては２つのカバ
ーを二重に施して２段の消音を行い、下シリンダにある
吐出口には１つのカバーを施して１段の消音を行うよう
にしている。2. Description of the Related Art A compression mechanism employed in a hermetic compressor as described above has a cover provided at a discharge port into a hermetic container as disclosed in Japanese Patent Application Laid-Open No. 07-77186, 07 or the like. In addition, the noise generated when the gas compressed by the compression mechanism pushes the reed valve of the discharge port to repeatedly discharge it in a pulsating manner is suppressed. As a result, silent operation can be performed for use in air conditioning of general living spaces such as homes and vehicles. In addition, the technology described in the above-mentioned publication applies two covers to the upper discharge port in the upper cylinder of the upper and lower cylinders in two layers to muffle the sound in two stages, and the discharge port in the lower cylinder has One cover is applied to mute the sound in one step.

【０００３】[0003]

【発明が解決しようとする課題】上記のようなカバーは
多重に設けるほど消音効果は上がる。しかし、近時の小
型化の要求が強まる中、カバーの設置スペースが一層狭
まくなり、さらなる消音性能向上の妨げになっている。The more the above-mentioned covers are provided in multiple layers, the higher the noise reduction effect. However, in recent years, as the demand for miniaturization has increased, the space for installing the cover has been further narrowed, which has hindered further improvement of the noise reduction performance.

【０００４】本発明の目的は、部品点数の増大やかさ張
りなしに消音効果を向上することができる密閉型圧縮機
を提供することにある。An object of the present invention is to provide a hermetic compressor capable of improving the noise reduction effect without increasing the number of parts or bulking.

【０００５】[0005]

【課題を解決するための手段】上記のような目的を達成
するために、本発明の密閉型圧縮機は、密閉容器内に、
シリンダとそれに収容されたピストンを１組有した圧縮
機構と、この圧縮機構を駆動する電動機とを備え、シリ
ンダ内に密閉容器外から吸入した流体を圧縮して密閉容
器の圧縮機構が仕切る一方の側に吐出してから密閉容器
外に吐出するものにおいて、圧縮機構における、密閉容
器の一方の側に向く第１の面の側と、密閉容器の他方の
側に向く第２の面の側とに設けられた第１、第２の吐出
口と、圧縮機構の第１の面の側に第１の吐出口を内外二
重に覆うように設けられた第１、第２のカバーと、圧縮
機構の第２の面の側に第２の吐出口を覆うように設けら
れた第３のカバーと、第１の吐出口からの吐出流体を第
１のカバー内から第２のカバー内に至って後この第２の
カバーから密閉容器の一方の側に順次吐出させる第１の
通路と、第２の吐出口からの吐出流体を第３のカバー内
から第２のカバー内に順次吐出させて第１の通路に合流
させる第２の通路と、を備えたことを第１の特徴として
いる。Means for Solving the Problems In order to achieve the above-mentioned object, a hermetic compressor of the present invention comprises:
A compression mechanism having a cylinder and a set of pistons housed therein; and an electric motor for driving the compression mechanism, wherein one of the compression mechanisms of the hermetic container partitions by compressing fluid sucked from outside the hermetic container into the cylinder. In the compression mechanism, the first surface facing the one side of the closed container and the second surface facing the other side of the closed container in the compression mechanism. A first and a second cover provided on the side of the first surface of the compression mechanism so as to cover the first and the second discharge ports in an inner and outer double; A third cover provided on the side of the second surface of the mechanism so as to cover the second discharge port, and discharging fluid from the first discharge port from inside the first cover to inside the second cover. And a second passage for sequentially discharging from the second cover to one side of the closed container; A second passage for combining the first passage and discharge the fluid from the third in the cover by successively discharged into a second cover from the mouth, further comprising a being a first feature.

【０００６】このような構成では、１つのシリンダから
の吐出流体を第１、第２の吐出口に分けて吐出すること
により各吐出口での音の発生を半減させておいて、第１
の吐出口からの吐出流体は第１の通路を通じ第１、第２
のカバー内に順次吐出させて２段に消音した後密閉容器
の一方の側に吐出するのに併せ、第２の吐出口からの吐
出流体は第２の通路を通じ第３のカバー内から第２のカ
バー内に順次吐出して第１の通路に合流させ第２のカバ
ーを共用して２段に消音した後密閉容器の一方の側に吐
出するので、上記従来の場合同様に３つのカバーによっ
てカバー数よりも１段多く、第１、第２の吐出口からの
各吐出流体につき２段ずつ合計４段の消音をすることが
でき、部品点数の増大やかさ張りなしに消音効果が従来
よりも向上する。In such a configuration, the discharge fluid from one cylinder is discharged separately to the first and second discharge ports, thereby reducing the generation of noise at each discharge port by half.
The discharge fluid from the discharge port of the first and second passages through the first passage.
The fluid discharged from the second discharge port is discharged from the third cover through the second passage at the same time as the liquid is discharged to one side of the sealed container after being sequentially discharged into the cover and silenced in two stages. And then merges into the first passage, merges with the second cover, silences in two steps, and discharges to one side of the sealed container. One step is greater than the number of covers, and a total of four steps can be silenced by two steps for each of the discharge fluids from the first and second discharge ports, and the noise reduction effect is increased without increasing the number of parts and bulking. improves.

【０００７】本発明の密閉型圧縮機は、また、密閉容器
内に、シリンダとそれに収容されたピストンを２組有し
た圧縮機構と、この圧縮機構を駆動する電動機とを備
え、それらシリンダ内に密閉容器外から吸入した流体を
圧縮して密閉容器の圧縮機構が仕切る一方の側に吐出し
てから密閉容器外に吐出するものにおいて、圧縮機構に
おける、密閉容器の一方の側に向く第１の面の側と、密
閉容器の他方の側に向く第２の面の側とに設けられた各
シリンダごとの第１、第２の吐出口と、圧縮機構の第１
の面の側に第１の吐出口を内外二重に覆うように設けら
れた第１、第２のカバーと、圧縮機構の第２の面の側に
第２の吐出口を覆うように設けられた第３のカバーと、
圧縮機構の第１の吐出口からの吐出流体を第１のカバー
内から第２のカバー内に至って後密閉容器の一方の側に
順次に吐出させる第１の通路と、圧縮機構の第２の吐出
口からの吐出流体を第３のカバー内から第２のカバー内
に順次吐出させて第１の通路に合流させる第２の通路
と、を備えたことを第２の特徴としている。The hermetic compressor according to the present invention also includes a compression mechanism having a cylinder and two sets of pistons housed therein in a closed container, and an electric motor for driving the compression mechanism. A fluid that is sucked from the outside of a closed container, compressed and discharged to one side partitioned by a compression mechanism of the closed container, and then discharged to the outside of the closed container. First and second discharge ports for each cylinder provided on the surface side and the second surface side facing the other side of the closed container;
A first and a second cover provided on the side of the first surface so as to cover the first discharge port in an inner and outer double; and a second cover of the compression mechanism provided to cover the second discharge port. A third cover provided,
A first passage for discharging the discharge fluid from the first discharge port of the compression mechanism from the first cover to the inside of the second cover and sequentially discharging the fluid to one side of the closed container; and a second passage of the compression mechanism. A second feature is that a second passage is provided which sequentially discharges the discharge fluid from the discharge port from inside the third cover into the second cover and joins the first passage.

【０００８】このような構成では、２つのシリンダから
の吐出流体を騒音が大きくならないように個々に取り扱
って第１から第３の３つのカバーによって消音するの
に、第１の特徴の場合同様に、一方の吐出流体は第１の
通路を通じ第１、第２のカバーによる２段の消音を行
い、他方の吐出流体は第２の通路を通じ第３、第２のカ
バーによる２段の消音を行うので、部品点数の増大やか
さ張りなしに消音効果が従来よりも向上する。In such a configuration, the fluids discharged from the two cylinders are individually handled so as not to increase the noise and are silenced by the first to third three covers. One of the discharged fluids performs two-stage silencing by the first and second covers through the first passage, and the other discharged fluid performs two-stage silencing by the third and second covers through the second passage. Therefore, the noise reduction effect is improved as compared with the conventional case without increasing the number of parts or bulking.

【０００９】第１、第２の通路が、第１〜第３のカバー
が形成する通路断面積に対し第１〜第３のカバーに設け
られた吐出口の開口面積を小さくした膨張型のマフラー
構造をなしていることにより、各カバーが形成する各空
間の広がりでの膨張作用の繰り返しにより効果的な消音
を行うことができる。An inflatable muffler in which the first and second passages have an opening area of discharge ports provided in the first to third covers smaller than a cross-sectional area of the passage formed by the first to third covers. Due to the structure, effective silencing can be performed by repeating the expansion action in the expansion of each space formed by each cover.

【００１０】本発明の密閉型圧縮機は、また、密閉容器
内に、圧縮機構と、この圧縮機構を駆動する電動機とを
備え、圧縮機構に密閉容器外から吸入した流体を圧縮し
て密閉容器の圧縮機構が仕切る一方の側に吐出してから
密閉容器外に吐出するものにおいて、圧縮機構におけ
る、密閉容器の少なくとも一方の側に向く面に設けられ
た吐出口と、この吐出口を持った面の側にこの吐出口を
一重以上に覆うように設けられた１つ以上のカバーと、
圧縮機構からの吐出流体を１つ以上のカバー内を順次通
じて密閉容器の一方の側に吐出させる通路と、任意のカ
バーとその内側となる圧縮機構または他のカバーとの間
で、任意のカバーの吐出口の内側に任意のカバーの内側
となる圧縮機構または他のカバーの１つまたは複数の吐
出口へ向く尾管状の絞り通路を形成するように、少なく
とも任意のカバーの側にプレス成形した通路部と、を備
えたことを第３の特徴としている。[0010] The hermetic compressor of the present invention further includes a compression mechanism and an electric motor for driving the compression mechanism in the hermetic container, and compresses fluid sucked from outside the hermetic container into the hermetic container. The compression mechanism discharges to one side partitioned and then discharges out of the closed container. In the compression mechanism, a discharge port provided on a surface facing at least one side of the closed container has this discharge port. One or more covers provided on the side of the surface so as to cover the discharge port more than once,
Any passage between a cover and a compression mechanism or another cover inside the passage that allows the discharge fluid from the compression mechanism to sequentially pass through one or more covers and discharge to one side of the sealed container, and Press forming at least on the side of at least any cover so as to form a compression mechanism inside the cover at the inside of the outlet of the cover or a tail-tube-shaped throttle passage toward one or more outlets of the other cover. A third feature is that a passage portion is provided.

【００１１】このような構成では、圧縮機構の吐出口か
ら吐出された吐出流体を、１つ以上のカバー内を順次通
じてカバーの数だけの段数の消音を行って密閉容器の一
方の側に吐出するのに、任意のカバーにプレス成形され
た通路部が、その内側となる圧縮機構ないしは他のカバ
ーとの間で任意のカバーの吐出口に内側へ続く尾管状の
絞り通路自体が消音作用を、カバーの数だけの段数分の
消音効果に加え発揮するので、部品点数の増大やかさ張
りなしに消音効果が向上する。[0011] In such a configuration, the discharge fluid discharged from the discharge port of the compression mechanism is sequentially passed through one or more covers to mute the number of stages corresponding to the number of the covers, and to one side of the closed container. When discharging, the passage portion press-molded in any cover has a compression mechanism inside it or a tail tubular narrow passage itself that goes inward to the discharge port of any cover between itself and another cover has a silencing effect. Is achieved in addition to the noise reduction effect of the number of stages corresponding to the number of covers, so that the noise reduction effect is improved without increasing the number of parts or bulking.

【００１２】これにより、カバーは圧縮機構の吐出口を
内外二重に覆うように設けられ、通路部は外側のカバー
に設けられているだけでも十分な消音効果を発揮するこ
とができる。Thus, the cover is provided so as to double cover the discharge port of the compression mechanism inside and outside, and the passage can be provided with a sufficient noise reduction effect only by being provided on the outside cover.

【００１３】本発明の密閉型圧縮機は、また、密閉容器
内に、圧縮機構と、この圧縮機構を駆動する電動機とを
備え、圧縮機構に密閉容器外から吸入した流体を圧縮し
て密閉容器の圧縮機構が仕切る一方の側に吐出してから
密閉容器外に吐出する密閉型圧縮機において、圧縮機構
における、密閉容器の少なくとも一方の側に向く面に設
けられた吐出口と、この吐出口が設けられた面の側に、
この吐出口を圧縮機構の駆動軸のまわりで覆い、吐出口
からの吐出流体を順次に受け入れ外側のカバーから密閉
容器内に吐出するように内外二重に設けられたカバー
と、を備え、外側のカバーはその外周の近傍に複数配設
された吐出口から密閉容器内に吐出するようにしたこと
を第４の特徴としている。The hermetic compressor of the present invention further includes a compression mechanism and an electric motor for driving the compression mechanism in the hermetic container, and compresses the fluid sucked from outside the hermetic container into the hermetic container. In a hermetic compressor that discharges to one side partitioned by the compression mechanism and then discharges outside the closed container, a discharge port provided on a surface of the compression mechanism facing at least one side of the closed container, and the discharge port On the side of the surface where is provided,
A cover that covers the discharge port around the drive shaft of the compression mechanism, and is provided with a double inner and outer cover so as to sequentially receive the discharge fluid from the discharge port and discharge the fluid from the outer cover into the closed container. The fourth feature of the present invention is that the cover discharges into the closed container from a plurality of discharge ports arranged in the vicinity of the outer periphery.

【００１４】このような構成では、圧縮機構からの吐出
流体をその駆動軸の内外二重のカバーを通じて密閉容器
の一方の側に吐出させるのに、外側のカバーの吐出口が
その外周の近傍に複数あることにより、吐出口がカバー
の大きな外周域を利用して広く分散される分だけ１つの
吐出口を小さくして必要な総開口面積を確保することが
でき、吐出口が小さくなる分だけ、内側のカバー内から
外側のカバー内に流体が吐出されるときの内側のカバー
の吐出口の位置に対応した高い音圧域から外側のカバー
の吐出口を外しやすくして、音圧の高い音が外側のカバ
ーの吐出口に対応して直接放出されてしまうようなこと
を防止することができるので、消音効果が向上する。In such a structure, the discharge port of the outer cover is provided near the outer periphery of the closed casing to discharge the discharge fluid from the compression mechanism to one side of the sealed container through the inner and outer double covers of the drive shaft. By having a plurality of outlets, one outlet can be made smaller by the amount that the outlets are widely dispersed using the large outer peripheral area of the cover, and the required total opening area can be secured. When the fluid is discharged from the inner cover to the outer cover, the discharge port of the outer cover is easily removed from the high sound pressure range corresponding to the position of the discharge port of the inner cover, and the sound pressure is high. Since it is possible to prevent the sound from being directly emitted corresponding to the discharge port of the outer cover, the sound deadening effect is improved.

【００１５】外側のカバーの複数の吐出口が等間隔に設
けられていると、そのピッチの設定により、各吐出口か
ら流体が吐出されるときに放出される残音を互いに干渉
させて消音させることができる。When a plurality of outlets of the outer cover are provided at equal intervals, the residual sound emitted when the fluid is discharged from each outlet interferes with each other to mute the sound by setting the pitch. be able to.

【００１６】外側のカバーの複数の吐出口が内側のカバ
ーの吐出口がある円周位置よりも外側に設けられている
と、外側のカバーの吐出口を内側のカバーの吐出口に対
応した高い音圧域から十分に外すことができる。If the plurality of outlets of the outer cover are provided outside the circumferential position where the outlets of the inner cover are located, the outlets of the outer cover will be higher than the outlets of the inner cover. It can be sufficiently removed from the sound pressure range.

【００１７】外側のカバーの複数の吐出口の開口面積の
和を、内側カバーの開口面積の和よりも小さくすると、
内側のカバーの吐出口による絞り度よりも、外側のカバ
ーの吐出口による絞り度が高くなることにより、外側の
カバーから密閉容器内への吐出流体および放出音の脈動
を抑えて音のピークを小さくすることができるので消音
効果が向上する。If the sum of the opening areas of the plurality of discharge ports of the outer cover is smaller than the sum of the opening areas of the inner cover,
The squeezing of the discharge fluid and discharge sound from the outer cover into the sealed container is suppressed by increasing the squeezing degree of the outlet of the outer cover as compared with the squeezing degree of the outlet of the inner cover, thereby reducing the sound peak. Since it can be made smaller, the silencing effect is improved.

【００１８】これら第４の特徴において、圧縮機構は、
シリンダとそれに収容されたピストンを１組有するとと
もに、圧縮機構における、密閉容器の圧縮機構が仕切る
一方の側に向く第１の面の側と、密閉容器の他方の側に
向く第２の面の側とに設けられた第１、第２の吐出口を
持ち、内外二重のカバーは第１の吐出口を覆うように第
１の面の側に設けられ、第２の面の側に第２の吐出口を
覆う一重のカバーを設け、第２の吐出口からの吐出流体
を一重のカバー内、および二重のカバーの外側カバー内
に順次吐出させる通路を設けたものとして、第１、第２
の吐出口からの各吐出流体をそれぞれ２つのカバーによ
る２段の消音を行うようにすることができる。In these fourth features, the compression mechanism comprises:
A cylinder and a set of pistons accommodated therein are provided, and a first surface of the compression mechanism facing one side partitioned by the compression mechanism of the closed container and a second surface facing the other side of the closed container. And first and second discharge ports provided on the first side and the inner and outer dual covers are provided on the first surface side so as to cover the first discharge ports, and the second cover is provided on the second surface side. The first and second passages are provided with a single cover for covering the second discharge port, and a passage for sequentially discharging the discharge fluid from the second discharge port into the single cover and into the outer cover of the double cover. Second
The two-stage silencing of each discharge fluid from the discharge ports by two covers can be performed.

【００１９】しかも、圧縮機構は、シリンダとそれに収
容されたピストンを２組有し、第１、第２の吐出口は各
シリンダごとのものとすることができる。Further, the compression mechanism has two sets of cylinders and pistons housed therein, and the first and second discharge ports can be provided for each cylinder.

【００２０】本発明の密閉型圧縮機は、密閉容器内に、
シリンダとそれに収容されたピストンを有した圧縮機構
と、この圧縮機構を駆動する電動機とを備え、圧縮機構
に密閉容器外から吸入した流体を圧縮して密閉容器の圧
縮機構が仕切る一方の側に吐出してから密閉容器外部に
吐出するものにおいて、圧縮機構における、密閉容器の
一方の側に向く第１の面の側と、他方の側に向く第２の
面の側とに設けられた第１、第２の吐出口と、圧縮機構
の第１の面の側に第１の吐出口を覆って第１の吐出口か
らの吐出流体を受け入れて圧縮機構の一方の側に吐出さ
せる第１のカバーと、圧縮機構の第２の面の側に第２の
吐出口を内外二重に覆うように設けられた第２、第３の
カバーと、第２の吐出口からの吐出流体を第２のカバー
内から第３のカバー内を経て第１のカバー内に順次吐出
させて合流させる通路と、を備えたものとしてもよく、
第１の吐出口からの吐出に関し１段の消音を行い、第２
の吐出口からの吐出に関し３段の消音を行って、３つの
カバーによりその数よりも１段多い４段の消音をするこ
とができ、第１の吐出口からの吐出量よりも第２の吐出
口からの吐出量が多く特に高い騒音を発するような場合
に、騒音が特に高い方の消音段数を数倍高めて全体とし
て効果的な消音を行うことができる。The hermetic compressor according to the present invention comprises:
A compression mechanism having a cylinder and a piston housed therein, and an electric motor for driving the compression mechanism are provided, and the compression mechanism of the closed vessel compresses fluid sucked from outside the closed vessel to one side of the compression mechanism of the closed vessel. In the one that is discharged and then discharged to the outside of the closed container, the compression mechanism includes a first surface provided on one side of the closed container and a second surface provided on a second surface provided on the other side. A first discharge port that covers the first discharge port on the side of the first face of the compression mechanism and receives the fluid discharged from the first discharge port and discharges the fluid to one side of the compression mechanism; , A second and a third cover provided on the side of the second surface of the compression mechanism so as to double cover the inside and outside of the second discharge port, and discharge fluid from the second discharge port to the second The liquid is sequentially discharged from the second cover to the first cover via the third cover and merged into the first cover. May be one having a road, a
One-stage silencing is performed on the discharge from the first discharge port, and the second
The three-stage silencing is performed with respect to the discharge from the discharge port, and the four covers can be silenced by three covers, which is one step larger than the number thereof. In a case where the amount of discharge from the discharge port is large and a particularly high noise is generated, the number of the muffling stages having the particularly high noise can be increased several times to achieve the effective silencing as a whole.

【００２１】本発明の密閉型圧縮機は、密閉容器内に、
シリンダとそれに収容されたピストンを有した圧縮機構
と、この圧縮機構を駆動する電動機とを備え、圧縮機構
に密閉容器外から吸入した流体を圧縮して密閉容器の圧
縮機構が仕切る一方の側に吐出してから密閉容器外に吐
出するものにおいて、圧縮機構における、密閉容器の一
方の側に向く第１の面の側と、他方の側に向く第２の面
の側とに設けられた第１、第２の吐出口と、圧縮機構の
第１の面の側に第１の吐出口を覆うように複数重ねて設
けられた第１カバーの組と、圧縮機構の第２の面の側に
第２の吐出口を覆うように第１のカバーの組と同数重ね
て設けられた第２のカバーの組と、第１の吐出口からの
吐出流体を第１のカバーの組の内側のカバー内から外側
のカバー内に順次吐出させ最外側のカバーから密閉容器
の一方の側に吐出させる第１の通路と、第２の吐出口か
らの吐出流体を第２のカバーの組の内側のカバー内から
外側のカバー内に順次に吐出させ、最外側のカバー内か
ら第１のカバーの組の最外側のカバー内に吐出して第１
の通路に合流させる第２の通路と、を備えたものとして
もよく、第１の吐出口からの吐出に関し２段以上の消音
を行い、第２の吐出口からの吐出に関し３段以上の消音
を行って、４つ以上の偶数のカバーによりその数よりも
１段多い５段以上の消音をすることができ、第１の吐出
口からの吐出量よりも第２の吐出口からの吐出量が多く
高い騒音を発するような場合に、騒音が高い方の消音段
数を高めて全体として効果的な消音を行うことができ
る。The hermetic compressor according to the present invention comprises:
A compression mechanism having a cylinder and a piston housed therein, and an electric motor for driving the compression mechanism are provided, and the compression mechanism of the closed vessel compresses fluid sucked from outside the closed vessel to one side of the compression mechanism of the closed vessel. In the compression mechanism, the first and second surfaces of the compression mechanism are provided on a first surface facing one side of the closed container and a second surface facing the other side. A set of a first cover, a plurality of first outlets, a plurality of first covers provided so as to cover the first outlet on the side of the first surface of the compression mechanism, and a side of the second surface of the compression mechanism; And a second cover set provided in the same number as the first cover set so as to cover the second discharge port, and a discharge fluid from the first discharge port is supplied to the inside of the first cover set. Discharge sequentially from inside the cover to the outside cover, then discharge from the outermost cover to one side of the sealed container The first passage and the discharge fluid from the second discharge port are sequentially discharged from the inner cover to the outer cover of the set of the second cover, and the first cover is discharged from the outermost cover to the first cover. Discharge into the outermost cover of the set
And a second passage merging with the second passage, wherein two or more stages of silencing are performed with respect to the discharge from the first discharge port, and three or more stages are silenced with respect to the discharge from the second discharge opening. , The number of muffles of five or more steps, which is one step larger than that number, can be reduced by the four or more even-numbered covers, and the discharge amount from the second discharge port is smaller than the discharge amount from the first discharge port When a large amount of noise is generated, the number of muffling stages with higher noise can be increased to achieve effective silencing as a whole.

【００２２】この場合、第１、第２のカバーの組は、二
重のカバーよりなるものとして従来よりも十分に高い消
音効果が得られる。In this case, the set of the first and second covers is formed of a double cover, so that a sufficiently high silencing effect can be obtained as compared with the related art.

【００２３】上記各発明において、さらに、密閉容器の
一方の側に面したカバーの吐出口に圧縮機構の軸線まわ
りに湾曲してカバー外に延びる尾管を設けたものとする
ことができ、これにより、吐出時の騒音を尾管によりさ
らに低減するとともに、尾管を通じて吐出される流体が
尾管の湾曲形状に沿って旋回されることにより、流体に
乗じていることのある異物を遠心分離することができ
る。In each of the above-mentioned inventions, a tail pipe that curves around the axis of the compression mechanism and extends outside the cover may be provided at the discharge port of the cover facing one side of the closed container. As a result, the noise at the time of discharge is further reduced by the tailpipe, and the fluid discharged through the tailpipe is swirled along the curved shape of the tailpipe, thereby centrifuging foreign substances that may have multiplied with the fluid. be able to.

【００２４】さらに、加えて、密閉容器の圧縮機構が仕
切る一方の側は、電動機が設けられている側であると、
空間が大きく複雑なことを利用した膨張による消音効果
を高めることができる。[0024] In addition, one side of the sealed container partitioned by the compression mechanism is a side provided with an electric motor.
It is possible to enhance the noise reduction effect due to expansion using the large and complex space.

【００２５】今１つ、さらに加えて、密閉容器の一方の
分割側が上側に位置するようにした縦置き型のものに好
適である。The present invention is also suitable for a vertical type in which one of the divided sides of the closed container is located on the upper side.

【００２６】本発明のそれ以上の特徴は以下の詳細な説
明および図面の記載から明らかになる。本発明の各特徴
はそれ単独で、あるいは可能な範囲で種々な組み合わせ
で複合して用いることができる。Further features of the present invention will become apparent from the following detailed description and drawings. Each feature of the present invention can be used alone or in combination in various combinations as far as possible.

【００２７】[0027]

【発明の実施の形態】以下、本発明の幾つかの実施の形
態の密閉型圧縮機について、図面を参照しながら説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A hermetic compressor according to some embodiments of the present invention will be described below with reference to the drawings.

【００２８】（実施の形態１）本実施の形態１の密閉型
圧縮機は冷凍用であって、図１、図２に示すように、圧
縮機構Ａとこの圧縮機構Ａを駆動する電動機Ｂとを密閉
容器Ｃに収容している。圧縮機構Ａはシリンダ３とこれ
に収容したローラピストン１およびこれに従動するベー
ン２を１組持っている。シリンダ３はその両側開口面に
当てがいボルト９により締結した軸受部材７、８により
閉じられてローラピストン１を格納しており、ローラピ
ストン１がベーン２の摺動を伴って偏心回転することに
より、低温低圧のガス冷媒を吸入して圧縮し高温高圧の
ガス冷媒として吐出し、冷凍サイクルに繰り返し供す
る。しかし、圧縮機構Ａの圧縮方式や用途、圧縮する流
体の種類は上記のものに限られることはなく、種々の方
式や用途、圧縮流体の場合に適用して有効であり、いず
れの場合も本発明の範疇に属する。(Embodiment 1) A hermetic compressor according to Embodiment 1 is used for refrigerating. As shown in FIGS. 1 and 2, a compression mechanism A and an electric motor B for driving the compression mechanism A are used. In a closed container C. The compression mechanism A has a cylinder 3, a roller piston 1 housed in the cylinder 3, and a set of vanes 2 driven by the cylinder. The cylinder 3 is closed by bearing members 7, 8 fastened by fitting bolts 9 on both side opening surfaces thereof and houses the roller piston 1, and the roller piston 1 is eccentrically rotated with the sliding movement of the vane 2. A low-temperature and low-pressure gas refrigerant is sucked and compressed, discharged as a high-temperature and high-pressure gas refrigerant, and repeatedly provided to a refrigeration cycle. However, the compression method and application of the compression mechanism A and the type of the fluid to be compressed are not limited to those described above, and are effective when applied to various methods, applications and compressed fluids. It belongs to the category of the invention.

【００２９】さらに、本実施の形態１の密閉型圧縮機は
縦型で、上側に電動機Ｂが配置されその下側に圧縮機構
Ａが設置されている。電動機Ｂの固定子６ａおよび圧縮
機構Ａの上側軸受部材７が密閉容器Ｃの胴部の内周に焼
き嵌めや溶接によって固定され、電動機Ｂの回転子６ｂ
から下方に延びる回転軸１０がシリンダ３を貫通して前
記軸受部材７、８に軸受され電動機Ｂにより回転させら
れてローラピストン１を駆動する。Further, the hermetic compressor of the first embodiment is of a vertical type, in which an electric motor B is disposed on the upper side and a compression mechanism A is disposed on the lower side. The stator 6a of the electric motor B and the upper bearing member 7 of the compression mechanism A are fixed to the inner periphery of the body of the closed casing C by shrink fitting or welding, and the rotor 6b of the electric motor B is fixed.
A rotary shaft 10 extending downward from the cylinder 3 passes through the cylinder 3 and is supported by the bearing members 7 and 8, and is rotated by the electric motor B to drive the roller piston 1.

【００３０】圧縮機構Ａはシリンダ３の外周に吸入口４
を持ち密閉容器Ｃの胴部外から接続された吸入管１１を
通じ冷媒をシリンダ３内に吸入して圧縮し、シリンダ３
の内周の一箇所に設けた吐出路５ｃを通じ軸受部材７、
８に設けた２つの吐出口５ａ、５ｂから密閉容器Ｃ内に
吐出する。吐出した冷媒は密閉容器Ｃ内の圧縮機構Ａが
上下に仕切っている上側の電動機室１２に導かれて電動
機Ｂの冷却に供した後上部の吐出管１３から外部の冷凍
サイクルに供給される。冷凍サイクルに供した後の冷媒
はアキュームレータ１７を介して吸入管１１に戻す。密
閉容器Ｃの下側はオイルを溜めるオイル室１４になって
いる。The compression mechanism A has a suction port 4
The refrigerant is sucked into the cylinder 3 through the suction pipe 11 connected from the outside of the body of the sealed container C and compressed, and the cylinder 3
Bearing member 7 through a discharge passage 5c provided at one location on the inner circumference of
Discharge into the closed container C from the two discharge ports 5a and 5b provided in 8. The discharged refrigerant is guided to an upper motor room 12 partitioned vertically by a compression mechanism A in a closed container C, and is used to cool the motor B. Then, the refrigerant is supplied from an upper discharge pipe 13 to an external refrigeration cycle. The refrigerant that has been subjected to the refrigeration cycle is returned to the suction pipe 11 via the accumulator 17. The lower side of the closed container C is an oil chamber 14 for storing oil.

【００３１】圧縮機構Ａの上下の吐出口５ａ、５ｂから
吐出した冷媒を電動機室１２に導くのに、圧縮機構Ａに
施した敵数のカバーからなるカバー構造１５を利用して
いる。カバー構造１５は冷媒ガスが一定圧力以上に圧縮
される都度各吐出口５ａ、５ｂに施されたリードバルブ
１６（図１に吐出口５ｂの側で代表して示してある。）
を押し開いて繰り返し脈動的に吐出するときの音を低減
するためのもので、従来例で示したように通常用いられ
ているが、本実施の形態１では特に、各吐出口５ａ、５
ｂから圧縮機構Ａの上下に吐出する冷媒をカバー構造１
５を通じ合流させてカバー構造１５の電動機室１２に面
した部分から直接電動機室１２内に吐出させることによ
り、カバー構造１５のカバー数が従来と同じでも消音作
用を高められるようにしている。In order to guide the refrigerant discharged from the upper and lower discharge ports 5a and 5b of the compression mechanism A to the motor chamber 12, a cover structure 15 made up of enemy covers applied to the compression mechanism A is used. The cover structure 15 is a reed valve 16 provided to each of the discharge ports 5a and 5b each time the refrigerant gas is compressed to a certain pressure or more (represented by the discharge port 5b side in FIG. 1).
Is used to reduce the sound of repeatedly pulsating ejection by pushing and opening, and is usually used as shown in the conventional example. However, in the first embodiment, in particular, each of the ejection ports 5a, 5
b covers the refrigerant discharged from above and below the compression mechanism A.
5 and are discharged directly from the portion of the cover structure 15 facing the motor room 12 into the motor room 12, so that the silencing effect can be enhanced even if the number of covers of the cover structure 15 is the same as in the related art.

【００３２】具体的に述べると、カバー構造１５は、圧
縮機構Ａの吐出口５ａが設けられた、電動機室１２の側
に向く面をなす上側の軸受部材７の外面に、吐出口５ａ
を覆うように内外二重に施した２枚のカバー２１、２２
と、圧縮機構Ａの吐出口５ｂが設けられた、オイル室１
４の側に向く面をなす下側の軸受部材８の外面に、吐出
口５ｂを覆うように一重に施した１枚のカバー２３とで
構成された従来構造において、吐出口５ａからの吐出冷
媒カバー２１内からカバー２２内に至って後このカバー
２２内から密閉容器Ｃの電動機室１２内に順次吐出させ
る矢印で示した通路２４と、吐出口５ｂからの吐出冷媒
をカバー２３内からカバー２２内に順次吐出させて通路
２４に合流させる矢印で示した今１つの通路２５とを備
えている。通路２５はシリンダ３、軸受部材７、８を貫
通する穴４０を利用して単純な構成で形成しているが、
これに限られることはない。More specifically, the cover structure 15 is provided with a discharge port 5a on the outer surface of the upper bearing member 7 which is provided with the discharge port 5a of the compression mechanism A and faces the motor chamber 12 side.
Covers 21 and 22 that are double-coated inside and outside to cover
And the oil chamber 1 provided with the discharge port 5b of the compression mechanism A.
In the conventional structure including the outer surface of the lower bearing member 8 forming the surface facing the side 4 and a single cover 23 provided so as to cover the discharge port 5b, the refrigerant discharged from the discharge port 5a A passage 24 indicated by an arrow from the inside of the cover 21 to the inside of the cover 22 and then sequentially discharged from the inside of the cover 22 into the electric motor room 12 of the sealed container C, and the refrigerant discharged from the discharge port 5b is transferred from the inside of the cover 23 to the inside of the cover 22. And a single passage 25 indicated by an arrow that is sequentially discharged and merges with the passage 24. The passage 25 is formed with a simple configuration using a hole 40 passing through the cylinder 3 and the bearing members 7 and 8,
It is not limited to this.

【００３３】このように、１つのシリンダ３からの吐出
冷媒を２つの吐出口５ａ、５ｂに分けて吐出することに
より各吐出口５ａ、５ｂでの音の発生を半減させておい
て、一方の吐出口５ａからの吐出冷媒は一方の通路２４
を通じ内外の２つのカバー２１、２２内に順次吐出させ
て２段に消音した後、密閉容器Ｃの電動機室１２に矢印
２６で示すように吐出するのに併せ、他方の吐出口５ｂ
からの吐出冷媒は今１つの通路２５を通じ今１つのカバ
ー２３内から前記外側のカバー２２内に順次吐出して前
記一方の通路２４に合流させカバー２３を共用して２段
に消音してカバー数よりも１段多い消音を行った後、密
閉容器Ｃの電動機室１２に矢印２６で示すように吐出
し、そこでの大きく複雑な空間を利用した膨張による消
音を有効に図ることができる。As described above, by discharging the refrigerant discharged from one cylinder 3 to the two discharge ports 5a and 5b, the generation of noise at each of the discharge ports 5a and 5b is reduced by half. The refrigerant discharged from the discharge port 5a passes through one of the passages 24.
Through the two covers 21 and 22 inside and outside to mute the sound in two steps, and then, as shown by an arrow 26, to the electric motor room 12 of the closed casing C, and at the same time, the other discharge port 5b
The refrigerant discharged from the cover 25 is sequentially discharged from the inside of the cover 23 to the outside cover 22 through the passage 25 and merges with the one of the passages 24 so that the cover 23 is shared and muffled in two stages. After silencing by one step more than the number, the sound is discharged into the motor room 12 of the closed casing C as indicated by an arrow 26, and the silencing by expansion using a large and complicated space there can be effectively achieved.

【００３４】このため、１つのシリンダ３で圧縮した冷
媒を密閉容器Ｃの電動機室１２に吐出するときの消音効
果を高めることができる。同時に、前記圧縮機構Ａの上
下２つの側への吐出冷媒をカバー２２内で合流させて双
方の消音に共用する分だけ消音段数に比しカバー数が少
なくなる利点がある。結果、従来と同じ３つのカバーに
より部品点数の増大やかさ張りなしに従来よりも高い消
音効果が得られる。For this reason, it is possible to enhance the noise reduction effect when the refrigerant compressed by one cylinder 3 is discharged to the motor room 12 of the closed casing C. At the same time, there is an advantage that the number of covers is reduced as compared with the number of muffling stages by the amount that the refrigerant discharged to the upper and lower two sides of the compression mechanism A is merged in the cover 22 and shared for both muffling. As a result, with the same three covers as in the prior art, a higher noise reduction effect than before can be obtained without increasing the number of parts or bulking.

【００３５】このような作用効果は、圧縮機構Ａの一方
の吐出口５ａを二重以上に覆うカバーの数に対し、他方
の吐出口５ｂを一重以上に覆うカバーの数が少ない場合
に、吐出口５ｂを覆うカバーの数が少ない分だけ、吐出
口５ａを覆うカバーの数の多い分を２つの通路により共
用することにより、カバーの数に関係なく得られる。カ
バー数が多いとスペース上の問題はあるが、特に静かな
運転が重要な場合やスペースに余裕のあるときはカバー
数を多くして有効である。しかも、カバー数が奇数であ
りながら吐出口５ａ、５ｂのいずれからの吐出に対して
も同程度の消音が行える。Such an operation and effect can be obtained when the number of covers that cover one discharge port 5a of the compression mechanism A more than double and the number of covers that cover the other discharge port 5b more than one are small. By sharing the larger number of covers covering the discharge port 5a with the two passages as much as the number of covers covering the outlet 5b, the number of covers can be obtained regardless of the number of covers. If there are many covers, there is a space problem, but it is effective to increase the number of covers especially when quiet driving is important or when there is enough space. Moreover, even if the number of covers is an odd number, the same level of noise can be eliminated for the discharge from any of the discharge ports 5a and 5b.

【００３６】もっとも、圧縮機構Ａの上下を反転したカ
バー構造１５にて、同じ消音作用を行って後、下側にな
る第２のカバー２２から圧縮機構Ａの上の電動機室１２
に吐出させるようにすることもできる。However, the same silencing effect is performed by the cover structure 15 in which the compression mechanism A is turned upside down, and then the lower cover 22 is moved from the lower second cover 22 to the motor chamber 12 above the compression mechanism A.
May be discharged.

【００３７】また、図１に仮想線で示すように第４のカ
バー２０を設けて、吐出口５ｂからの吐出流体を第３、
第４のカバーに順次吐出させた後、第２のカバー２２内
に吐出し、第２のカバー２２から電動機室１２に吐出さ
せるようにすると、吐出口５ａからの吐出につき２つの
カバー２１、２２によって２段の消音を行い、吐出口５
ｂからの吐出につき３つのカバー２０、２３、２２よっ
て３段の消音を行うことができ、４つのカバー数より１
段多い５段の消音により、さらに高い消音効果が得られ
る。吐出口５ｂからの吐出量が吐出口５ａからの吐出量
よりも多く騒音が高い場合に、騒音の高い側の吐出につ
き１段多い消音ができることになるので好適であり、容
量の異なるシリンダ３を併用するような場合に対応しや
すい。このような作用効果は吐出口５ａ側および吐出口
５ｂ側のカバー数が同数であれば、吐出口５ａ側よりも
吐出口５ｂ側で１段多い消音を達成することができる。Further, a fourth cover 20 is provided as shown by a virtual line in FIG.
After the liquid is sequentially discharged to the fourth cover, the liquid is discharged into the second cover 22 and discharged from the second cover 22 to the electric motor room 12, so that the two covers 21 and 22 are discharged per discharge from the discharge port 5a. Two-stage silencing by the discharge port 5
The three covers 20, 23, and 22 can perform three-stage silencing for the discharge from b.
With the five stages of silencing, a higher silencing effect can be obtained. When the amount of discharge from the discharge port 5b is larger than the amount of discharge from the discharge port 5a and the noise is high, it is preferable because the noise on the higher-noise side can be silenced by one step more. It is easy to cope with such cases. With such an operation and effect, as long as the number of covers on the discharge port 5a side and the discharge port 5b side is the same, it is possible to achieve one-stage more noise reduction on the discharge port 5b side than on the discharge port 5a side.

【００３８】さらに、具体的に図示しないが、吐出口５
ａ、５ｂの各カバー数を図１の場合と逆にするカバー構
造にて、吐出口５ａからの吐出流体を受け入れて電動機
室１２に吐出させる１つのカバーと、吐出口５ｂからの
吐出流体を順次に受け入れて外側のものから上記１つの
カバー内に吐出して合流させる通路を持った内外二重の
２つのカバーとの組み合わせ構造にすることもでき、こ
の場合、吐出口５ａからの吐出に関し１つのカバーによ
る１段の消音を行い、吐出口５ｂからの吐出に関し３つ
のカバーによる３段の消音を行って、３つのカバーによ
りその数よりも１段多い４段の消音をすることができ、
吐出口５ａからの吐出量よりも吐出口５ｂからの吐出量
が多く特に高い騒音を発するような場合に、騒音が特に
高い方の消音段数を数倍高めて全体として効果的な消音
を行うことができる。Although not specifically shown, the discharge port 5
In the cover structure in which the number of covers a and b is reversed from that in FIG. 1, one cover for receiving the discharge fluid from the discharge port 5a and discharging it to the motor chamber 12 and the discharge fluid from the discharge port 5b It is also possible to adopt a combination structure of two inner and outer covers having a passage for sequentially receiving and discharging from the outer one into the one cover and merging. In this case, the discharge from the discharge port 5a can be performed. One-stage silencing by one cover, three-stage silencing by three covers with respect to discharge from the discharge port 5b, and four-stage silencing by three covers, one more than that number. ,
In the case where the discharge amount from the discharge port 5b is larger than the discharge amount from the discharge port 5a and particularly high noise is generated, the number of muffling stages having particularly high noise is increased several times to perform effective noise reduction as a whole. Can be.

【００３９】これらカバー２０、２１、２２、２３によ
る消音は、それらが覆う吐出口５ａ、５ｂおよび内側と
なるカバー２１の図３（ａ）に示す吐出口２７の開口面
積に対して一定以上大きな広がりを持った消音室を形成
し、そこに狭い吐出口５ａ、５ｂ、２７、２８などから
冷媒を吐出させるときの膨張の働きによることを基本と
している。そこで、図１、図３に示すように、カバー２
２の電動機室１２への吐出口２８からカバー２２内にそ
の内面に沿って延びる尾管状の絞り通路２９を形成する
と、かさ張らない構造にて吐出口２８での絞り作用を高
めて電動機室１２内に吐出させることができ、消音効果
が向上する。The noise produced by the covers 20, 21, 22, and 23 is greater than the opening area of the discharge ports 5a and 5b covered by the covers and the opening area of the discharge port 27 shown in FIG. It is basically based on the expansion function when a refrigerant is discharged from narrow discharge ports 5a, 5b, 27, 28, etc., in a sound-absorbing chamber having an expansion. Therefore, as shown in FIGS.
When a tail tubular throttle passage 29 extending along the inner surface of the cover 22 from the discharge port 28 to the second motor chamber 12 is formed in the cover 22, the throttle function at the discharge port 28 is enhanced in a non-bulky structure, and the inside of the motor chamber 12 is increased. , And the silencing effect is improved.

【００４０】絞り通路２９は図３（ａ）に示すようにカ
バー２２のボルト９による取り付け穴３０を避けて３つ
の消音室および吐出口２８を形成した形状に対応して長
さが２通りある。絞り通路２９はその長さによって消音
に有効な音の波長に違いがあるので、もし消音室の大き
さや場所によってそこに発生する音の波長に違いがある
とき、その各波長位置に合わせた位置および長さの絞り
通路２９を形成すると消音に有効である。As shown in FIG. 3 (a), the throttle passage 29 has two lengths corresponding to the shape in which the three muffling chambers and the discharge ports 28 are formed while avoiding the mounting holes 30 formed by the bolts 9 of the cover 22. . Since there is a difference in the sound wavelength effective for noise reduction depending on the length of the aperture passage 29, if there is a difference in the wavelength of the sound generated there depending on the size or location of the noise reduction chamber, a position corresponding to each wavelength position. Forming a throttle passage 29 having a length and a length is effective for noise reduction.

【００４１】絞り通路２９は図１、図３（ａ）（ｂ）
（ｃ）に示すように、カバー２２と、このカバー２２の
吐出口２８を持った平坦部分の内側に当てがった当て板
３１との間で形成している。当て板３１は図３（ｃ）に
示すように開放端部３２ａと閉じ端部３２ｂとを持った
円弧状の溝３２を３つ形成しており、各溝３２の閉じ端
部３２ｂが吐出口２８に対応する位置関係にて当てがっ
て溶接などにより一体に結合されている。The throttle passage 29 is shown in FIGS. 1, 3 (a) and 3 (b).
As shown in (c), the cover 22 is formed between the cover 22 and a contact plate 31 applied to the inside of a flat portion having the discharge port 28 of the cover 22. As shown in FIG. 3C, the contact plate 31 is formed with three arc-shaped grooves 32 having an open end 32a and a closed end 32b, and the closed end 32b of each groove 32 is formed as a discharge port. 28 and are integrally connected by welding or the like.

【００４２】図４に絞り通路２９を持ったカバー２２の
変形例を示してある。このカバー２２は絞り通路２９を
吐出口２８からカバー２２の外面に沿って外側に円弧状
に延びるものとして形成している。このため、当て板３
１はカバー２２の外面に当てがって一体に結合してあ
る。このように円弧状の絞り通路２９をカバー２２の外
側に設けると、内側に設けた場合に加え、吐出口２８か
ら絞り通路２９を通じて電動機室１２に吐出する冷媒は
旋回流となり、圧縮機構Ａの部分などを経て乗じること
がある異物であるオイルなどを遠心分離により外側に追
いやって電動機Ｂや密閉容器Ｃの胴部内面などに付着さ
せて上昇する冷媒から分離し、冷凍サイクルにオイルが
侵入するのを防止することができる。この旋回流の向き
を回転子６ｂの回転方向に合わせると、旋回流を勢いづ
かせて遠心分離作用を高めることができる。FIG. 4 shows a modification of the cover 22 having the throttle passage 29. The cover 22 has a throttle passage 29 formed so as to extend outward from the discharge port 28 along the outer surface of the cover 22 in an arc shape. For this reason, the backing plate 3
Numeral 1 is attached to the outer surface of the cover 22 to be integrally connected. When the arc-shaped throttle passage 29 is provided outside the cover 22 as described above, in addition to the case where the throttle passage 29 is provided inside, the refrigerant discharged from the discharge port 28 to the electric motor chamber 12 through the throttle passage 29 becomes a swirling flow, and The oil, which is a foreign substance which may be multiplied through a part, is driven outward by centrifugal separation and adheres to the inner surface of the body of the electric motor B or the closed vessel C and is separated from the rising refrigerant, and the oil enters the refrigeration cycle. Can be prevented. When the direction of the swirling flow is adjusted to the rotating direction of the rotor 6b, the swirling flow can be urged to enhance the centrifugal action.

【００４３】もっとも、絞り通路２９は当て板３１を平
板とし、カバー２２の側に溝３２を設けて形成すること
もできる。このようにすると、当て板３１は打ち抜き加
工だけで形成でき、溝３２はカバー２２のプレス加工と
同時に形成できる利点がある。However, the throttle passage 29 can also be formed by forming the backing plate 31 as a flat plate and providing the groove 32 on the cover 22 side. This has the advantage that the backing plate 31 can be formed only by punching, and the groove 32 can be formed simultaneously with the pressing of the cover 22.

【００４４】このような絞り通路２９による作用効果
は、カバー数や一部のカバーを２つの吐出口からの吐出
冷媒に共用するかどうかなどに無関係に得られるので、
片面に１つの吐出口しか設けられないことが普通になっ
ているスクロールタイプなど他のタイプの圧縮機構に適
用することもできる。The effect of the throttle passage 29 can be obtained irrespective of the number of covers and whether or not some of the covers are shared by the refrigerant discharged from the two discharge ports.
The present invention can be applied to other types of compression mechanisms such as a scroll type in which only one discharge port is usually provided on one side.

【００４５】（実施の形態２）本実施の形態２は図５に
示すように、圧縮機構Ａがシリンダ３とそれに収容され
たローラピストン１を２組有し、上方のシリンダ３から
は上側の軸受部材７にある吐出口５ａに吐出し、下方の
シリンダ３からは下側の軸受部材８にある吐出口５ｂに
吐出するようにしてあり、吐出口５ａ、５ｂから吐出さ
れる冷媒を３枚のカバー２１〜２３により実施の形態１
の場合と同様な通路２４、２５により消音しながらカバ
ー２１内で合流させて電動機室１２に直接吐出させるカ
バー構造１５を有している。(Embodiment 2) In Embodiment 2, as shown in FIG. 5, a compression mechanism A has two sets of a cylinder 3 and a roller piston 1 housed therein, The refrigerant is discharged to the discharge port 5a of the bearing member 7, and discharged from the lower cylinder 3 to the discharge port 5b of the lower bearing member 8. Three refrigerants discharged from the discharge ports 5a and 5b are discharged. Embodiment 1 by the covers 21 to 23
And a cover structure 15 that joins inside the cover 21 and discharges directly to the electric motor room 12 while silencing by the passages 24 and 25 similar to the case of FIG.

【００４６】これにより、２つのシリンダ３、３からの
吐出冷媒を騒音が大きくならないように個々に取り扱っ
て３つのカバー２１〜２３によって消音するのに、実施
の形態１の場合同様に、吐出口５ａからの吐出冷媒は一
方の通路２４を通じ内外２つのカバー２１、２２による
２段の消音を行い、吐出口５ｂからの吐出冷媒は今１つ
の通路２５を通じカバー２３、２２による２段の消音を
行うので、従来同様に３つのカバー２１〜２３を用いな
がら、部品点数の増大やかさ張りなしに消音の段数を１
つ増大し消音効果が向上する。Thus, the refrigerant discharged from the two cylinders 3, 3 is individually handled so as not to increase the noise and is silenced by the three covers 21 to 23. The refrigerant discharged from the outlet 5a performs two-stage silencing by the two inner and outer covers 21 and 22 through one passage 24, and the refrigerant discharged from the outlet 5b performs the two-stage silencing by the covers 23 and 22 through the single passage 25. Therefore, while using the three covers 21 to 23 as in the related art, the number of muffling stages can be reduced to one without increasing the number of parts or bulking.
And the noise reduction effect is improved.

【００４７】本実施の形態２では特に、二重のカバー２
１、２２における内側のカバー２１と、その内側である
圧縮機構Ａとの間で、内側のカバー２１の吐出口２７か
ら内側に続く尾管状の絞り通路２９を形成するように、
少なくとも外となる内側のカバー２１の側にプレス成形
した通路部４１を設けている。通路部４１は内側のカバ
ー２１内に吐出されて膨張した後の冷媒が吐出口２７か
ら外側のカバー２２に吐出するときの絞り効果で消音を
図り、カバー数よりも１段多い消音に加えさらに消音効
果を高めることができる。しかし、絞り通路２９は吐出
口５ａから吐出口２７の間に１つもしくは複数設けられ
てもよく、数が多い程消音効果は高まり、通路形態はど
のように設計されてもよい。図６、図７に示す場合は吐
出口２７からカバー２１内へ求心方向に延びるように１
つ形成されている。図８に示す変形例の場合は、絞り通
路２９を２箇所に設けてある。これら絞り効果を得るの
に本実施の形態２では、実施の形態１におけるような当
て板が不要であって部品点数の増大なしに達成すること
ができる。このような作用効果はカバーが圧縮機構Ａの
片面に設けられるだけの構造でも有効であり、二重以上
のカバーでも任意のカバーとその内側となる圧縮機構Ａ
または他のカバーとの間で同じようなことが行え、片面
のみに吐出させることが多いスクロールタイプの圧縮機
構に適用しやすい。In the second embodiment, in particular, the double cover 2
Between the inner cover 21 in 1 and 22 and the compression mechanism A inside thereof, a tail tubular throttle passage 29 extending inward from the discharge port 27 of the inner cover 21 is formed.
At least a passage portion 41 formed by press molding is provided on the side of the inner cover 21 that is located outside. The passage portion 41 silences by the throttling effect when the refrigerant discharged into the inner cover 21 and expanded and discharged from the discharge port 27 to the outer cover 22, and in addition to silencing one step more than the number of covers, The silencing effect can be enhanced. However, one or a plurality of throttle passages 29 may be provided between the discharge port 5a and the discharge port 27. The greater the number, the higher the noise reduction effect, and the passage form may be designed in any manner. In the case shown in FIGS. 6 and 7, it is necessary to extend the discharge port 27 into the cover 21 in the centripetal direction.
One is formed. In the case of the modified example shown in FIG. 8, the throttle passage 29 is provided at two places. According to the second embodiment, to obtain such an aperture effect, the backing plate as in the first embodiment is not required, and can be achieved without increasing the number of parts. Such an operation and effect is effective even in a structure in which the cover is provided only on one side of the compression mechanism A. Even if the cover has two or more covers, an arbitrary cover and the compression mechanism A inside the cover may be provided.
Alternatively, the same operation can be performed with another cover, and it is easy to apply to a scroll-type compression mechanism that often discharges only one side.

【００４８】図７に示す場合は特に、図７（ａ）に示す
外側のカバー２２の吐出口２８の開口面積の和を、図７
（ｂ）に示す内側のカバー２１の吐出口２７の開口面積
の和よりも小さくしてある。これにより、内側のカバー
２１の吐出口２７による絞り度よりも、外側のカバー２
２の吐出口２８による絞り度が高くなることにより、外
側のカバ２２ーから密閉容器Ｃ内への吐出流体および放
出音の脈動を抑えて音のピークを小さくすることができ
るので消音効果が向上する。In the case shown in FIG. 7, in particular, the sum of the opening areas of the discharge ports 28 of the outer cover 22 shown in FIG.
The sum of the opening areas of the discharge ports 27 of the inner cover 21 shown in FIG. As a result, the outer cover 2 is smaller than the aperture of the inner cover 21 due to the discharge port 27.
By increasing the degree of squeezing by the second discharge port 28, the pulsation of the discharge fluid and the discharge sound from the outer cover 22 into the closed container C can be suppressed and the sound peak can be reduced, so that the noise reduction effect is improved. I do.

【００４９】（実施の形態３）本実施の形態３は図９、
図１０に示すように、実施の形態２と同様なカバー構造
１５を持ち、二重のカバー２１、２２における内側のカ
バー２１とその内側の圧縮機構Ａとの間、および外側の
カバー２２とその内側のカバー２１との間で、内側のカ
バー２１の吐出口２７、および外側のカバー２２の吐出
口２８に、それぞれ内側に続く尾管状の絞り通路２９を
形成するように、それぞれの対にあって少なくとも外側
となる圧縮機構Ａに対しては内側のカバー２１の側に、
内側のカバー２１に対しては外側のカバー２２の側に、
プレス成形した通路部４１を設けている。図示の場合通
路部４１による絞り通路２９が多い分だけ実施の形態２
の場合よりも高い消音特性を発揮することができる。(Embodiment 3) Embodiment 3 is shown in FIG.
As shown in FIG. 10, a cover structure 15 similar to that of the second embodiment is provided, and between the inner cover 21 and the compression mechanism A inside the double covers 21 and 22, and the outer cover 22 and the outer cover 22. Between the inner cover 21 and the discharge port 27 of the inner cover 21 and the discharge port 28 of the outer cover 22, each pair is formed so as to form a tail pipe-shaped throttle passage 29 continuing to the inside. And at least the outer side of the inner cover 21 for the compression mechanism A,
For the inner cover 21, on the side of the outer cover 22,
A press-formed passage portion 41 is provided. In the case of illustration, the second embodiment corresponds to the large number of the throttle passages 29 by the passage portion 41.
In this case, higher silencing characteristics can be exhibited.

【００５０】また、二重のカバー２１、２２の外側のカ
バー２２の吐出口２８につき、図９、図１０に示すよう
にカバー２２の外周部に複数の吐出口２８ａ〜２８ｅに
分散して形成して、必要な総開口面積を持つようにして
形成してある。これにより、外側のカバー２２の吐出口
２８がその外周の近傍に複数あることにより、吐出口２
８がカバー２２の大きな外周域を利用して広く分散され
る分だけ１つの吐出口２８ａ〜２８ｅなどを小さくして
必要な総開口面積を確保することができ、吐出口２８ａ
〜２８ｅが小さくなる分だけ、内側のカバー２１内から
外側のカバー２２内に冷媒が吐出されるときの内側のカ
バー２１の吐出口２７の位置に対応した図９に示す高い
音圧域Ｈから外側のカバー２２の吐出口２８ａ〜２８ｅ
よりなる吐出口２８を外しやすくして、音圧の高い音が
外側のカバー２２の吐出口２８に対応して直接放出され
てしまうようなことを防止することができるので、消音
効果が向上する。The discharge ports 28 of the cover 22 outside the double covers 21 and 22 are formed by dispersing a plurality of discharge ports 28a to 28e on the outer periphery of the cover 22 as shown in FIGS. Then, it is formed so as to have a necessary total opening area. Accordingly, since there are a plurality of outlets 28 of the outer cover 22 near the outer periphery thereof, the outlets 2
One of the outlets 28a to 28e and the like can be reduced by an amount corresponding to the fact that the nozzles 8 are widely dispersed by using the large outer peripheral area of the cover 22, and a necessary total opening area can be secured.
9 corresponds to the position of the discharge port 27 of the inner cover 21 when the refrigerant is discharged from the inside of the inner cover 21 to the outside of the cover 22 by an amount corresponding to a decrease in the pressure 28H. Discharge ports 28a to 28e of outer cover 22
This makes it possible to easily remove the discharge port 28 and prevent a sound having a high sound pressure from being directly emitted corresponding to the discharge port 28 of the outer cover 22, thereby improving the sound deadening effect. .

【００５１】この場合、図９、図１０に示すように外側
のカバー２２の吐出口２８ａ〜２８ｅが等間隔に設けら
れていると、そのピッチの設定により、各吐出口２８ａ
〜２８ｅから冷媒が吐出されるときに放出される残音を
互いに干渉させて消音させることができ、消音効果がさ
らに向上する。In this case, if the discharge ports 28a to 28e of the outer cover 22 are provided at regular intervals as shown in FIGS.
-E can be silenced by interfering with the residual sound emitted when the refrigerant is discharged from -e, thereby further improving the silencing effect.

【００５２】外側のカバー２２の吐出口２８ａ〜２８ｅ
が内側のカバー２１の吐出口２７がある円周位置よりも
外側に設けられていると、外側のカバー２２の吐出口２
８ａ〜２８ｅを内側のカバー２１の吐出口２７に対応し
た高い音圧域Ｈから十分に外すことができ、消音効果が
向上する。The outlets 28a to 28e of the outer cover 22
Is provided outside the circumferential position where the discharge port 27 of the inner cover 21 is located, the discharge port 2 of the outer cover 22 is
8a to 28e can be sufficiently removed from the high sound pressure range H corresponding to the discharge port 27 of the inner cover 21, and the noise reduction effect is improved.

【００５３】[0053]

【発明の効果】１つまたは２つのシリンダを持つロータ
リタイプの圧縮機構、ないしはスクロールタイプなど他
の方式の圧縮機構で圧縮した流体を密閉容器の圧縮機構
が仕切る一方の側に吐出するときの消音効果を、部品点
数の増大やかさ張りなく高めることができる。According to the present invention, there is provided a muffler for discharging a fluid compressed by a rotary type compression mechanism having one or two cylinders or another type of compression mechanism such as a scroll type to one side partitioned by a compression mechanism of a closed container. The effect can be increased without increasing the number of parts and bulkiness.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施の形態１に係る冷凍機用の密閉型
圧縮機を示す断面図である。FIG. 1 is a cross-sectional view showing a hermetic compressor for a refrigerator according to Embodiment 1 of the present invention.

【図２】図１の圧縮機におけるロータリタイプの圧縮機
構の内部構造である。FIG. 2 is an internal structure of a rotary type compression mechanism in the compressor of FIG.

【図３】図２の圧縮機構に設けたカバー構造の一部を示
し、その（ａ）は二重カバー部の外カバーの平面図、そ
の（ｂ）は外カバーの断面図、その（ｃ）は外カバーに
施した当て板の下面図である。3A and 3B show a part of a cover structure provided in the compression mechanism of FIG. 2, wherein FIG. 3A is a plan view of an outer cover of a double cover portion, FIG. 3B is a cross-sectional view of the outer cover, and FIG. () Is a bottom view of the backing plate applied to the outer cover.

【図４】図２の圧縮機構に設けたカバー構造の一部の変
形例を示し、その（ａ）は二重カバー部の外カバーの平
面図、その（ｂ）は外カバーの断面図、その（ｃ）は外
カバーに施した当て板の平面図である。4A and 4B show a modification of a part of the cover structure provided in the compression mechanism of FIG. 2, wherein FIG. 4A is a plan view of an outer cover of a double cover portion, and FIG. (C) is a plan view of the backing plate applied to the outer cover.

【図５】本発明の実施の形態２に係る冷凍機用の密閉型
圧縮機を示す断面図である。FIG. 5 is a cross-sectional view showing a hermetic compressor for a refrigerator according to a second embodiment of the present invention.

【図６】図５の圧縮機構に設けたカバー構造の一部を示
し、その（ａ）は二重カバー部の平面図、その（ｂ）は
二重カバー部の断面図である。6A and 6B show a part of a cover structure provided in the compression mechanism of FIG. 5, wherein FIG. 6A is a plan view of a double cover portion, and FIG. 6B is a cross-sectional view of the double cover portion.

【図７】図６の二重カバーを（ａ）の外カバーと（ｂ）
の内カバーとに分離して示す平面図である。FIG. 7 shows the double cover of FIG. 6 with the outer cover of FIG.
FIG. 4 is a plan view separately shown with an inner cover.

【図８】図６の内カバーの変形例を仮想線で示す圧縮機
構部の平面図である。FIG. 8 is a plan view of a compression mechanism portion shown by a phantom line in a modification of the inner cover of FIG. 6;

【図９】本発明の実施の形態２に係る冷凍機用の密閉型
圧縮機を示し、その（ａ）は二重カバー側から見た圧縮
機構部の平面図、その（ｂ）は上カバーを外して見た平
面図、その（ｃ）は下カバーを外して見た平面図であ
る。FIG. 9 shows a hermetic compressor for a refrigerator according to a second embodiment of the present invention, in which (a) is a plan view of a compression mechanism section viewed from a double cover side, and (b) is an upper cover. Is a plan view when the lower cover is removed, and FIG. 3C is a plan view when the lower cover is removed.

【図１０】図９の密閉型圧縮機のカバー構造および圧縮
機構を分解して見た斜視図である。FIG. 10 is an exploded perspective view of a cover structure and a compression mechanism of the hermetic compressor of FIG. 9;

【符号の説明】[Explanation of symbols]

１ ローラピストン ２ ベーン ３ シリンダ ４ 吸入口 ５ａ、５ｂ 吐出口 １０ 回転軸 １２ 電動機室 １５ カバー構造 １６ リードバルブ ２０〜２３ カバー ２４、２５ 通路 ２７、２８、２８ａ〜２８ｅ 吐出口 ２９ 絞り通路 ４１ 通路部 Ａ 圧縮機構 Ｂ 電動機 Ｃ 密閉容器 DESCRIPTION OF SYMBOLS 1 Roller piston 2 Vane 3 Cylinder 4 Suction port 5a, 5b Discharge port 10 Rotary shaft 12 Motor room 15 Cover structure 16 Reed valve 20-23 Cover 24, 25 Passage 27, 28, 28a-28e Discharge port 29 Throttle passage 41 Passage A Compression mechanism B Motor C Closed container

───────────────────────────────────────────────────── フロントページの続き (72)発明者 阪井 学 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 橋本 雄史 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 神崎 秀幸 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 3H003 AA05 AB04 AC03 BA02 3H029 AA04 AA09 AA13 AA21 AB03 BB21 CC03 CC09 CC25 CC28 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Manabu Sakai, 1006 Kazuma Kadoma, Osaka Prefecture, Matsushita Electric Industrial Co., Ltd. 72) Inventor Hideyuki Kanzaki 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd.

Claims (19)

【特許請求の範囲】[Claims] 【請求項１】 密閉容器内に、シリンダとそれに収容さ
れたピストンを１組有した圧縮機構と、この圧縮機構を
駆動する電動機とを備え、シリンダ内に密閉容器外から
吸入した流体を圧縮して密閉容器の圧縮機構が仕切る一
方の側に吐出してから密閉容器外に吐出する密閉型圧縮
機において、 圧縮機構における、密閉容器の一方の側に向く第１の面
の側と、密閉容器の他方の側に向く第２の面の側とに設
けられた第１、第２の吐出口と、 圧縮機構の第１の面の側に第１の吐出口を内外二重に覆
うように設けられた第１、第２のカバーと、 圧縮機構の第２の面の側に第２の吐出口を覆うように設
けられた第３のカバーと、 第１の吐出口からの吐出流体を第１のカバー内から第２
のカバー内に至って後この第２のカバーから密閉容器の
一方の側に順次吐出させる第１の通路と、第２の吐出口
からの吐出流体を第３のカバー内から第２のカバー内に
順次吐出させて第１の通路に合流させる第２の通路と、 を備えたことを特徴とする密閉型圧縮機。1. A closed container includes a compression mechanism having a cylinder and a set of pistons housed therein, and an electric motor for driving the compression mechanism. The cylinder compresses fluid sucked from outside the closed container into the cylinder. A hermetic-type compressor that discharges to one side partitioned by a compression mechanism of a closed container and then discharges to the outside of the closed container, the first surface of the compression mechanism facing one side of the closed container; A first and a second discharge port provided on a second surface side facing the other side of the first and second surfaces of the compression mechanism so as to cover the first discharge port inward and outward on the first surface side of the compression mechanism. First and second covers provided, a third cover provided on the second surface side of the compression mechanism so as to cover the second discharge port, and a discharge fluid from the first discharge port. The second from inside the first cover
And a first passage for sequentially discharging from the second cover to one side of the sealed container after the second cover, and discharging fluid from the second discharge port from the third cover to the second cover. A hermetic compressor comprising: a second passage for sequentially discharging and merging with the first passage. 【請求項２】 密閉容器内に、シリンダとそれに収容さ
れたピストンを２組有した圧縮機構と、この圧縮機構を
駆動する電動機とを備え、シリンダ内に密閉容器外から
吸入した流体を圧縮して密閉容器の圧縮機構が仕切る一
方の側に吐出してから密閉容器外に吐出する密閉型圧縮
機において、 圧縮機構における、密閉容器の一方の側に向く第１の面
側と、密閉容器の他方の側に向く第２の面の側とに設け
られた各シリンダごとの第１、第２の吐出口と、 圧縮機構の第１の面の側に第１の吐出口を内外二重に覆
うように設けられた第１、第２のカバーと、 圧縮機構の第２の面の側に第２の吐出口を覆うように設
けられた第３のカバーと、 圧縮機構の第１の吐出口からの吐出流体を第１のカバー
内から第２のカバー内に至って後密閉容器の一方の側に
順次吐出させる第１の通路と、 圧縮機構の第２の吐出口からの吐出流体を第３のカバー
内から第２のカバー内に順次吐出させて第１の通路に合
流させる第２の通路と、 を備えたことを特徴とする密閉型圧縮機。2. A compression mechanism having a cylinder and two sets of pistons housed therein in a closed container, and an electric motor for driving the compression mechanism, wherein a fluid sucked from outside the closed container is compressed in the cylinder. A hermetic container that discharges to one side partitioned by a compression mechanism of the hermetic container and then discharges outside the hermetic container, wherein a first surface side of the compression mechanism facing one side of the hermetic container; A first and a second discharge port for each cylinder provided on the second surface side facing the other side, and a first discharge port on the first surface side of the compression mechanism, the inside and outside being doubled. A first cover provided to cover the second discharge port, a third cover provided to cover the second discharge port on the second surface side of the compression mechanism, a first discharge port of the compression mechanism; The fluid discharged from the outlet flows from the inside of the first cover to the inside of the second cover. A first passage for sequentially discharging the fluid to the first side, and a second passage for sequentially discharging the fluid discharged from the second discharge port of the compression mechanism from within the third cover into the second cover and joining the first passage. A hermetic compressor comprising: a passage; 【請求項３】 第１、第２の通路は、第１〜第３のカバ
ーが形成する通路断面積に対し第１〜第３のカバーに設
けられた吐出口の開口面積を小さくした膨張型のマフラ
ー構造をなしている請求項１、２のいずれか１項に記載
の密閉型圧縮機。3. An inflatable type in which the first and second passages have an opening area of discharge ports provided in the first to third covers smaller than a passage cross-sectional area formed by the first to third covers. 3. The hermetic compressor according to claim 1, wherein the hermetic compressor has a muffler structure. 【請求項４】 密閉容器内に、圧縮機構と、この圧縮機
構を駆動する電動機とを備え、圧縮機構に密閉容器外か
ら吸入した流体を圧縮して密閉容器の圧縮機構が仕切る
一方の側に吐出してから密閉容器外に吐出する密閉型圧
縮機において、 圧縮機構における、密閉容器の少なくとも一方の側に向
く面の側に設けられた吐出口と、 この吐出口を持った面の側にこの吐出口を一重以上に覆
うように設けられた１つ以上のカバーと、 圧縮機構からの吐出流体を１つ以上のカバー内を順次通
じて密閉容器の一方の側に吐出させる通路と、 任意のカバーとその内側となる圧縮機構または他のカバ
ーとの間で、任意のカバーの吐出口の内側に任意のカバ
ーの内側となる圧縮機構または他のカバーの１つまたは
複数の吐出口側へ向く尾管状の絞り通路を形成するよう
に、少なくとも任意のカバーの側にプレス成形した通路
部と、 を備えたことを特徴とする密閉型圧縮機。4. A compression mechanism and an electric motor for driving the compression mechanism are provided in the closed container, and the compression mechanism compresses fluid sucked from outside the closed container to one side of the closed container partitioned by the compression mechanism. In a hermetic compressor that discharges and then discharges outside the closed container, a discharge port provided on a surface of the compression mechanism facing at least one side of the closed container, and a discharge port provided on a surface having the discharge port. One or more covers provided so as to cover the discharge port in a single layer or more; a passage for discharging the discharge fluid from the compression mechanism through one or more covers sequentially to one side of the closed container; Between the cover and the compression mechanism or other cover inside the cover, inside the discharge port of any cover to one or more discharge ports of the compression mechanism or other cover inside any cover Shapes a narrow tubular passage that points to the tail To manner, hermetic compressor, characterized in that it includes a passage portion which is pressed into the side of at least any cover, a. 【請求項５】 カバーは圧縮機構の吐出口を内外二重に
覆うように設けられ、通路部は内側のカバーに設けられ
ている請求項４に記載の密閉型圧縮機。5. The hermetic compressor according to claim 4, wherein the cover is provided so as to cover the discharge port of the compression mechanism in an inside and outside manner, and the passage is provided in the inner cover. 【請求項６】 密閉容器内に、圧縮機構と、この圧縮機
構を駆動する電動機とを備え、圧縮機構に密閉容器外か
ら吸入した流体を圧縮して密閉容器の圧縮機構が仕切る
一方の側に吐出してから密閉容器外に吐出する密閉型圧
縮機において、 圧縮機構における、密閉容器の少なくとも一方の側に向
く面に設けられた吐出口と、 この吐出口が設けられた面の側に、この吐出口を圧縮機
構の駆動軸のまわりで覆い、吐出口からの吐出流体を順
次に受け入れ外側のカバーから密閉容器内に吐出させる
ように内外二重に設けられたカバーと、 を備え、外側のカバーはその外周の近傍に複数配設され
た吐出口から密閉容器内に吐出するようにしたことを特
徴とする密閉型圧縮機。6. A compression mechanism and an electric motor for driving the compression mechanism are provided in the closed container, and the compression mechanism compresses fluid sucked from the outside of the closed container to one side where the compression mechanism of the closed container partitions. In a hermetic type compressor that discharges and then discharges outside the closed container, the compression mechanism includes a discharge port provided on a surface facing at least one side of the closed container, and a discharge port provided on a surface on which the discharge port is provided. A cover that covers the discharge port around the drive shaft of the compression mechanism, and is provided with a double inner and outer cover so as to sequentially receive the discharge fluid from the discharge port and discharge the fluid from the outer cover into the closed container. Wherein the cover is configured to discharge into a closed container from a plurality of discharge ports disposed in the vicinity of the outer periphery of the cover. 【請求項７】 複数の吐出口は等間隔に設けられている
請求項６に記載の密閉型圧縮機。7. The hermetic compressor according to claim 6, wherein the plurality of discharge ports are provided at equal intervals. 【請求項８】 複数の吐出口は内側のカバーの吐出口が
ある円周位置よりも外側に設けた請求項６、７のいずれ
か１項に記載の密閉型圧縮機。8. The hermetic compressor according to claim 6, wherein the plurality of discharge ports are provided outside a circumferential position where the discharge ports of the inner cover are located. 【請求項９】 複数の吐出口の開口面積の和を、内側カ
バーの開口面積の和よりも小さくする請求項６〜８のい
ずれか１項に記載の密閉型圧縮機。9. The hermetic compressor according to claim 6, wherein the sum of the opening areas of the plurality of discharge ports is smaller than the sum of the opening areas of the inner cover. 【請求項１０】 圧縮機構は、シリンダとそれに収容さ
れたピストンを１組有するとともに、圧縮機構におけ
る、密閉容器の圧縮機構が仕切る一方の側に向く第１の
面の側と、密閉容器の他方の側に向く第２の面の側とに
設けられた第１、第２の吐出口を持ち、内外二重のカバ
ーは第１の吐出口を覆うように第１の面の側に設けら
れ、第２の面の側に第２の吐出口を覆う一重のカバーを
設け、第２の吐出口からの吐出流体を一重のカバー内、
および二重のカバーの外側カバー内に順次吐出させる通
路を設けた請求項６〜９のいずれか１項に記載の密閉型
圧縮機。10. The compression mechanism has a cylinder and a set of pistons accommodated therein, and has a first surface side of the compression mechanism facing one side partitioned by the compression mechanism of the closed container, and the other of the closed container. And first and second discharge ports provided on the second surface side facing the first side, and an inner / outer double cover is provided on the first surface side so as to cover the first discharge port. A single cover for covering the second discharge port is provided on the side of the second surface, and the discharge fluid from the second discharge port is provided in the single cover;
The hermetic compressor according to any one of claims 6 to 9, further comprising a passage for sequentially discharging air in an outer cover of the double cover. 【請求項１１】 圧縮機構は、シリンダとそれに収容さ
れたピストンを２組有し、第１、第２の吐出口は各シリ
ンダごとのものである請求項１０に記載の密閉型圧縮
機。11. The hermetic compressor according to claim 10, wherein the compression mechanism has two sets of cylinders and pistons accommodated in the cylinders, and the first and second discharge ports are provided for each cylinder. 【請求項１２】 密閉容器内に、シリンダとそれに収容
されたピストンを有した圧縮機構と、この圧縮機構を駆
動する電動機とを備え、圧縮機構に密閉容器外から吸入
した流体を圧縮して密閉容器の圧縮機構が仕切る一方の
側に吐出してから密閉容器外部に吐出する密閉型圧縮機
において、 圧縮機構における、密閉容器の一方の側に向く第１の面
の側と、他方の側に向く第２の面の側とに設けられた第
１、第２の吐出口と、 圧縮機構の第１の面の側に第１の吐出口を覆って第１の
吐出口からの吐出流体を受け入れて圧縮機構の一方の側
に吐出させる第１のカバーと、 圧縮機構の第２の面の側に第２の吐出口を内外二重に覆
うように設けられた第２、第３のカバーと、 第２の吐出口からの吐出流体を第２のカバー内から第３
のカバー内を経て第１のカバー内に順次吐出させて合流
させる通路と、 を備えたことを特徴とする密閉型圧縮機。12. A compression mechanism having a cylinder and a piston housed therein, and an electric motor for driving the compression mechanism are provided in the closed container, and the compression mechanism compresses fluid sucked from outside the closed container and seals the fluid. In a hermetic-type compressor that discharges to one side partitioned by a compression mechanism of a container and then discharges to the outside of the closed container, the first surface of the compression mechanism facing one side of the closed container and the other side include A first and a second discharge port provided on the side of the second surface facing the first surface, and a discharge fluid from the first discharge port covering the first discharge port on the first surface side of the compression mechanism. A first cover for receiving and discharging on one side of the compression mechanism; and a second and third cover provided on the side of the second surface of the compression mechanism so as to cover the second discharge port inside and outside. And discharging the fluid discharged from the second discharge port into the third cover from within the second cover.
And a passage for sequentially discharging and merging into the first cover through the inside of the cover, and a passage. 【請求項１３】 密閉容器内に、シリンダとそれに収容
されたピストンを有した圧縮機構と、この圧縮機構を駆
動する電動機とを備え、圧縮機構に密閉容器外から吸入
した流体を圧縮して密閉容器の圧縮機構が仕切る一方の
側に吐出してから密閉容器外に吐出する密閉型圧縮機に
おいて、 圧縮機構における、密閉容器の一方の側に向く第１の面
の側と、他方の側に向く第２の面の側とに設けられた第
１、第２の吐出口と、 圧縮機構の第１の面の側に第１の吐出口を覆うように複
数重ねて設けられた第１のカバーの組と、 圧縮機構の第２の面の側に第２の吐出口を覆うように第
１のカバーの組と同数重ねて設けられた第２のカバーの
組と、 第１の吐出口からの吐出流体を第１のカバーの組の内側
のカバー内から外側のカバー内に順次に吐出させ最外側
のカバーから密閉容器の一方の側に吐出させる第１の通
路と、 第２の吐出口からの吐出流体を第２のカバーの組の内側
のカバー内から外側のカバー内に順次に吐出させ、最外
側のカバー内から第１のカバーの組の最外側のカバー内
に吐出して第１の通路に合流させる第２の通路と、 を備えたことを特徴とする密閉型圧縮機。13. A closed mechanism comprising a compression mechanism having a cylinder and a piston housed therein in a closed container, and an electric motor for driving the compression mechanism, wherein the compression mechanism compresses fluid sucked from outside the closed container and seals it. In a hermetic-type compressor that discharges to one side partitioned by a compression mechanism of a container and then discharges to the outside of the closed container, the first side of the compression mechanism facing one side of the closed container and the other side of the compression mechanism. First and second discharge ports provided on the side of the second surface facing, and a plurality of first discharge ports provided on the side of the first surface of the compression mechanism so as to cover the first discharge ports. A set of covers, a second set of covers provided in the same number as the set of first covers so as to cover the second discharge ports on the side of the second surface of the compression mechanism, and a first discharge port From the inner cover of the first set of covers into the outer cover sequentially. A first passage for discharging from the outermost cover to one side of the sealed container, and a discharge fluid from the second discharge port is sequentially discharged from the inside cover of the second cover set to the outside cover. And a second passage for discharging from the outermost cover into the outermost cover of the first set of covers and joining the first passage. 【請求項１４】 第１、第２のカバーの組は、二重のカ
バーよりなる請求項１３に記載の密閉型圧縮機。14. The hermetic compressor according to claim 13, wherein the set of the first and second covers comprises a double cover. 【請求項１５】 密閉容器内に、シリンダとそれに収容
されたピストンを有した圧縮機構と、この圧縮機構を駆
動する電動機とを備え、圧縮機構に密閉容器外から吸入
した流体を圧縮して密閉容器の圧縮機構が仕切る一方の
側に吐出してから密閉容器外に吐出する密閉型圧縮機に
おいて、 圧縮機構における、密閉容器の一方の側に向く第１の面
の側と、他方の側に向く第２の面の側とに設けられた第
１、第２の吐出口と、 圧縮機構の第１の面の側に第１の吐出口を覆うように二
重以上設けられた第１のカバーの組と、 圧縮機構の第２の面の側に第２の吐出口を覆うように、
第１のカバーの組よりも１つ少なく一重以上設けられた
第２のカバーの組または第２のカバーと、 第１の吐出口からの吐出流体を第１のカバーの組の内側
のカバー内から外側のカバー内に順次吐出させ最外側の
カバーから密閉容器の一方の側に吐出させる第１の通路
と、 第２の吐出口からの吐出流体を、第２のカバー内に吐出
させ、あるいは第２のカバーの組の内側のカバー内から
外側のカバー内に順次吐出させて、第２のカバーまたは
第２のカバーの組の最外側のカバーから、第１のカバー
の組の最外側のカバー内に吐出して第１の通路に合流さ
せる第２の通路と、 を備えたことを特徴とする密閉型圧縮機。15. A compression mechanism having a cylinder and a piston housed in the cylinder, and an electric motor for driving the compression mechanism are provided in the closed vessel, and the compression mechanism compresses fluid sucked from outside the closed vessel and seals the fluid. In a hermetic-type compressor that discharges to one side partitioned by a compression mechanism of a container and then discharges to the outside of the closed container, the first side of the compression mechanism facing one side of the closed container and the other side of the compression mechanism. A first and a second discharge port provided on the side of the second surface facing the first side, and a first or more double discharge port provided on the side of the first surface of the compression mechanism so as to cover the first discharge port. A set of covers and a second discharge port on the side of the second surface of the compression mechanism,
A second cover set or a second cover provided at least one less than the first cover set, and a discharge fluid from the first discharge port in a cover inside the first cover set. A first passage for discharging sequentially from the outer cover to one side of the closed container from the outermost cover, and discharging a discharge fluid from the second discharge port into the second cover, or The ink is sequentially discharged from the inner cover of the second set of covers to the outer cover, and the outermost cover of the second set of covers or the outermost cover of the second set of covers is discharged from the outermost cover of the first set of covers. A second passage that discharges into the cover and merges with the first passage. 【請求項１６】 密閉容器内に、シリンダとそれに収容
されたピストンを有した圧縮機構と、この圧縮機構を駆
動する電動機とを備え、圧縮機構に密閉容器外から吸入
した流体を圧縮して密閉容器の圧縮機構が仕切る一方の
側に吐出してから密閉容器外に吐出する密閉型圧縮機に
おいて、 圧縮機構における、密閉容器の一方の側に向く第１の面
の側と、他方の側に向く第２の面の側とに設けられた第
１、第２の吐出口と、 圧縮機構の第１の面の側に第１の吐出口を覆うように一
重以上設けられた第１のカバーまたは第１のカバーの組
と、 圧縮機構の第２の面の側に第２の吐出口を覆うように二
重以上第１のカバーまたは第１のカバーの組よりも１つ
多く設けられた第２のカバーの組と、 第１の吐出口からの吐出流体を、第１のカバー内に吐出
させ、または第１のカバーの組の内側のカバー内から外
側のカバー内に順次吐出させて、第１のカバーまたは第
１のカバーの組の最外側のカバーから、密閉容器の一方
の側に吐出させる第１の通路と、 第２の吐出口からの吐出流体を、第２のカバーの組の内
側のカバー内から外側のカバー内に順次吐出させて最外
側のカバー内から、第１のカバー内または第１のカバー
の組の最外側のカバー内に吐出して第１の通路に合流さ
せる第２の通路と、 を備えたことを特徴とする密閉型圧縮機。16. A compression mechanism having a cylinder and a piston housed in the cylinder, and an electric motor for driving the compression mechanism are provided in the closed vessel, and the compression mechanism compresses fluid sucked from outside the closed vessel and hermetically seals the fluid. In a hermetic-type compressor that discharges to one side partitioned by a compression mechanism of a container and then discharges to the outside of the closed container, the first side of the compression mechanism facing one side of the closed container and the other side of the compression mechanism. First and second discharge ports provided on the side of the second surface facing the first surface, and a first cover provided at least one time so as to cover the first discharge port on the side of the first surface of the compression mechanism. Alternatively, two or more pairs of the first cover and the first cover are provided on the second surface side of the compression mechanism so as to cover the second discharge port. A set of second covers, and a discharge fluid from the first discharge port is discharged into the first cover. Or from the inner cover of the first set of covers into the outer cover in sequence, from the first cover or the outermost cover of the first set of covers to one side of the sealed container. The first passage to be discharged, and the discharge fluid from the second discharge port is sequentially discharged from the inner cover of the second cover set to the outer cover, and the first fluid is discharged from the outermost cover to the first cover. A second passage that discharges into the cover or into the outermost cover of the first set of covers and merges with the first passage. 【請求項１７】 密閉容器の一方の側に面したカバーの
吐出口に圧縮機構の軸線まわりに湾曲してカバー外に延
びる尾管を設けた請求項１〜１６のいずれか１項に記載
の密閉型圧縮機。17. The discharge port of the cover facing one side of the closed container, wherein a tail pipe which is curved around the axis of the compression mechanism and extends outside the cover is provided. Hermetic compressor. 【請求項１８】 密閉容器の一方の側は、電動機が設け
られている請求項１〜１７のいずれか１項に記載の密閉
型圧縮機。18. The hermetic compressor according to claim 1, wherein an electric motor is provided on one side of the hermetic container. 【請求項１９】 密閉容器の一方の側が上側に位置する
ようにした縦置き型である請求項１〜１８のいずれか１
項に記載の密閉型圧縮機。19. A vertical installation type wherein one side of a sealed container is located on the upper side.
A hermetic compressor according to the item.
JP2000095152A 2000-03-30 2000-03-30 Hermetic compressor Expired - Lifetime JP4246353B2 (en)

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JP4246353B2 JP4246353B2 (en) 2009-04-02

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Publication number Priority date Publication date Assignee Title
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US8979517B2 (en) 2012-09-28 2015-03-17 Fujitsu General Limited Rotary compressor having semicircular-step-snap enlarged diameter portion in groove portion of end plate closing end portion of cylinder
CN103306984A (en) * 2013-07-02 2013-09-18 松下·万宝(广州)压缩机有限公司 Compressor
AU2016225795B2 (en) * 2015-09-11 2020-03-05 Fujitsu General Limited Rotary compressor
US9951775B2 (en) 2015-09-11 2018-04-24 Fujitsu General Limited Rotary compressor
EP3144536A1 (en) * 2015-09-11 2017-03-22 Fujitsu General Limited Rotary compressor
JP2018009488A (en) * 2016-07-12 2018-01-18 株式会社富士通ゼネラル Rotary Compressor
EP3376035A1 (en) * 2017-03-15 2018-09-19 LG Electronics Inc. Rotary compressor
US20180266423A1 (en) * 2017-03-15 2018-09-20 Lg Electronics Inc. Rotary compressor
KR20180105378A (en) * 2017-03-15 2018-09-28 엘지전자 주식회사 Rotary compressor
CN108626125A (en) * 2017-03-15 2018-10-09 Lg电子株式会社 Rotary compressor
US10731650B2 (en) 2017-03-15 2020-08-04 Lg Electronics Inc. Rotary compressor
CN108626125B (en) * 2017-03-15 2020-09-01 Lg电子株式会社 Rotary compressor
KR102238358B1 (en) * 2017-03-15 2021-04-12 엘지전자 주식회사 Rotary compressor
KR20200021855A (en) * 2018-08-21 2020-03-02 삼성전자주식회사 A compressor and electronic device using the same
KR102507786B1 (en) * 2018-08-21 2023-03-09 삼성전자주식회사 A compressor and electronic device using the same

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