JPH03260392A - Rotary compressor - Google Patents
Rotary compressorInfo
- Publication number
- JPH03260392A JPH03260392A JP5864390A JP5864390A JPH03260392A JP H03260392 A JPH03260392 A JP H03260392A JP 5864390 A JP5864390 A JP 5864390A JP 5864390 A JP5864390 A JP 5864390A JP H03260392 A JPH03260392 A JP H03260392A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- tube
- refrigerant
- roller
- pressure chamber
- 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.)
- Pending
Links
- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims abstract description 19
- 239000003507 refrigerant Substances 0.000 abstract description 25
- 238000005192 partition Methods 0.000 abstract description 2
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
（イ〉産業上の利用分野
この発明はシリンダ内に流入した冷媒をローラとベーン
との協働で圧縮を行う回転圧縮機に関する。DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention relates to a rotary compressor that compresses refrigerant flowing into a cylinder through the cooperation of rollers and vanes.
（口）従来の技術
従来の回転圧縮機は例えば実開昭５８−３２１８５号公
報に示されているように構成されている。ここで、この
公報を参考に従来例を説明する。第５図において、５０
は密閉容器で、この容器内には回転圧縮要素５１が収納
されている．回転圧縮要素５１はシリンダ５２と、この
シリンダ内を回転軸５３の偏心部５４によって回転する
ローラ５５とで構成されている。シリンダ５２には吸込
孔５６が設けられている．５７は吸込装置で、この吸込
装置は密閉容器５０に取付けたスリーブ管５８と、この
スリーブ管に挿入し、シリンダ５２の吸込孔５６に嵌合
わされた接続管５９と、この接続管の内部に装着された
断熱チューブ６０とで構成されている。BACKGROUND OF THE INVENTION A conventional rotary compressor is constructed as shown in, for example, Japanese Utility Model Application Laid-Open No. 58-32185. Here, a conventional example will be explained with reference to this publication. In Figure 5, 50
is a closed container, and a rotary compression element 51 is housed in this container. The rotary compression element 51 is composed of a cylinder 52 and a roller 55 that rotates within the cylinder by an eccentric portion 54 of a rotating shaft 53. The cylinder 52 is provided with a suction hole 56. Reference numeral 57 denotes a suction device, and this suction device includes a sleeve pipe 58 attached to the closed container 50, a connecting pipe 59 inserted into the sleeve pipe and fitted into the suction hole 56 of the cylinder 52, and a connecting pipe installed inside the connecting pipe. It consists of a heat insulating tube 60.
この構造の回転圧縮機では接続管５９の内部に断熱チュ
ーブ６０を装着し、吸込装置５７を流れてシリンダ５２
内に吸込まれる冷媒の温度が密閉容器５０内の圧縮冷媒
によって加熱されないようにしている。In a rotary compressor with this structure, a heat insulating tube 60 is installed inside the connecting pipe 59, and the air flows through the suction device 57 and into the cylinder 52.
The temperature of the refrigerant sucked into the closed container 50 is prevented from being heated by the compressed refrigerant inside the closed container 50.
〈ハ〉発明が解決しようとする課題
しかしながら、従来の吸込装置５７は接続管５９の内部
に円筒状の断熱チューブ６０を装着しているだけであり
、シリンダ５２内に開口する吸込孔５６の開口部をロー
ラ５５が通過してから圧縮を始めるため、排除容積の増
加には何ら貢献しておらず、冷凍能力の向上をはかるの
が難かしくなる問題があった。<C> Problems to be Solved by the Invention However, the conventional suction device 57 only has a cylindrical heat insulating tube 60 installed inside the connecting pipe 59, and the opening of the suction hole 56 that opens into the cylinder 52 is difficult. Since compression starts after the roller 55 has passed through the refrigerating section, it does not contribute to increasing the displacement volume in any way, making it difficult to improve the refrigerating capacity.
この発明は上記の問題を解決するもので、シリンダ内に
吸込まれる冷媒の温度上昇を防止するとともに、圧縮行
程の始まりを早めて排除容積を多くするようにした回転
圧縮機を提供することを目的としたものである。The present invention solves the above problems, and aims to provide a rotary compressor that prevents the temperature of the refrigerant sucked into the cylinder from rising, and also accelerates the start of the compression stroke to increase the displaced volume. This is the purpose.
（二〉課題を解決するための手段
この発明は密閉容器内に回転圧縮要素を収納し、この回
転圧縮要素をシリンダと、このシリンダの内壁に沿って
回転軸によって回転するローラと、このローラに接して
シリンダ内を高圧室及び低圧室に区画するベーンとで構
成し、前記シリンダのベーンの近傍に低圧室に連通ずる
円筒状の吸込孔を設けた回転圧縮機において、前記吸込
孔内に断面が多角形のチューブを嵌合わせて取付けたも
のである。(2) Means for Solving the Problems This invention stores a rotary compression element in a closed container, and connects this rotary compression element to a cylinder, a roller that rotates by a rotating shaft along the inner wall of the cylinder, and a roller that rotates along the inner wall of the cylinder. In a rotary compressor, the rotary compressor includes vanes that touch each other and partition the inside of the cylinder into a high-pressure chamber and a low-pressure chamber, and a cylindrical suction hole that communicates with the low-pressure chamber is provided near the vane of the cylinder. The tubes are fitted with polygonal tubes.
また、この発明はベーンから遠い側のチューブの辺を回
転軸の軸線方向と平行に設けたものである。Moreover, in this invention, the side of the tube on the side far from the vane is provided parallel to the axial direction of the rotating shaft.
（＊〉作用
この発明は上記のように構成したことにより、シリンダ
内に冷媒を導く吸込孔内に多角形のチューブを挿入して
吸込孔内に前記チューブで断熱空間を形成し、チューブ
内を流れる吸込冷媒が密閉容器内の圧縮冷媒の熱的影響
を受けないようにするとともに、シリンダ内に吸込まれ
た冷媒の圧縮行程を早めて排除容積を多くして冷凍能力
を向上させるようにしたものである。(*〉Operation) By having the above-described structure, the present invention inserts a polygonal tube into the suction hole that guides the refrigerant into the cylinder, forms a heat insulating space with the tube inside the suction hole, and insulates the inside of the tube. This system prevents the flowing suction refrigerant from being thermally affected by the compressed refrigerant in the sealed container, and also speeds up the compression stroke of the refrigerant sucked into the cylinder to increase the displacement volume and improve refrigeration capacity. It is.
（へ〉実施例
以下この発明を第１図乃至第４図に示す実施例に基いて
説明する。(F) EXAMPLE The present invention will be explained below based on the example shown in FIGS. 1 to 4.
１は密閉容器で、この容器内には上側に回転軸２を有す
る電動要素３と、下側にこの電動要素によって駆動され
る回転圧縮要素４とが夫々収納されている。回転圧縮要
素４はシリンダ５と、回転軸２の偏心部６によってシリ
ンダ５内を回転するローラ７と、このローラに接してシ
リンダ５内を高圧室８及び低圧室９とに区画するベーン
１０と、シリンダ５の開口を封じる上軸受部１１及び下
軸受部１２と、この上軸受部に取付けられた吐出弁工３
と、この吐出弁を覆うように上軸受部１１に取付けたカ
ップマフラ１４とで構成されている。シリンダ５には円
筒状の吸込孔１５が設けられている。この吸込孔はベー
ン１０の近傍に設けられている。Reference numeral 1 designates a closed container, in which an electric element 3 having a rotating shaft 2 on the upper side and a rotary compression element 4 driven by the electric element on the lower side are housed. The rotary compression element 4 includes a cylinder 5, a roller 7 that rotates inside the cylinder 5 by an eccentric portion 6 of the rotating shaft 2, and a vane 10 that comes into contact with the roller and divides the inside of the cylinder 5 into a high pressure chamber 8 and a low pressure chamber 9. , an upper bearing portion 11 and a lower bearing portion 12 that close the opening of the cylinder 5, and a discharge valve fitting 3 attached to the upper bearing portion.
and a cup muffler 14 attached to the upper bearing part 11 so as to cover the discharge valve. The cylinder 5 is provided with a cylindrical suction hole 15. This suction hole is provided near the vane 10.
１６は吸込装置で、この吸込装置は密閉容器１のバーリ
ング孔１７に溶着されたスリーブ管１８と、吸込孔１５
内に挿入されたチューブ１９と、このチューブ内に挿入
されてスリーブ管１８及びチューブ１９と一体に溶着さ
れる接続管２０とで構成されている。チューブ１９はシ
リンダ５の開口端に嵌合わされる円形のプランジ２１と
、四角形に形成された胴体２２と、吸込孔１５内に圧入
される拡管された円１！ｉｆ部２３とで形成されている
。胴体２２の外周にはシリンダ５との間に空間２４が形
成されている。また、チューブ１９はベー〉・１０から
遠い側の胴体２２の辺を回転軸２の軸線方向と平行にし
ている。16 is a suction device, and this suction device includes a sleeve pipe 18 welded to the burring hole 17 of the closed container 1, and a suction hole 15.
It consists of a tube 19 inserted therein, and a connecting tube 20 inserted into this tube and welded together with the sleeve tube 18 and tube 19. The tube 19 includes a circular plunge 21 that fits into the open end of the cylinder 5, a rectangular body 22, and an expanded circle 1 that is press-fitted into the suction hole 15! if section 23. A space 24 is formed between the outer periphery of the body 22 and the cylinder 5. Further, the tube 19 has the side of the body 22 on the side far from the base 10 parallel to the axial direction of the rotating shaft 2.
２５は密閉容器１の上部に取付けられた吐出管である。25 is a discharge pipe attached to the upper part of the closed container 1.
このように構成された回転圧縮機において、吸込装置１
６の接続管２０からチューブ１９を通ってシリンダ５内
の低圧室９に流入した冷媒はローラ７とベーン１０との
協働によって圧縮され、吐出弁１３を開放してカップマ
フラ１４内に吐出される。このカツブマブラ内の冷媒は
密閉容器１内に吐出され、電動要素３を通って吐出管２
５から密閉容器１外に吐出される。In the rotary compressor configured in this way, the suction device 1
The refrigerant flowing into the low pressure chamber 9 in the cylinder 5 from the connecting pipe 20 of No. 6 through the tube 19 is compressed by the cooperation of the roller 7 and the vane 10, opens the discharge valve 13, and is discharged into the cup muffler 14. Ru. The refrigerant in this Katsubumabura is discharged into the closed container 1 and passes through the electric element 3 into the discharge pipe 2.
5 to the outside of the closed container 1.
ローラ７はシリンダ５内の低圧室９に流入した冷媒をこ
のシリンダ内に開口するチューブ１９を通過した後、圧
縮行程に入る。After the refrigerant flowing into the low pressure chamber 9 in the cylinder 5 passes through a tube 19 opening into the cylinder, the roller 7 enters a compression stroke.
吸込装置１６は円筒状の吸込孔１５内に四角形のチュー
ブ１９を挿入することにより、このチューブの胴体２２
の外周に空間２４を形成し、圧縮された密閉容器ｌ内に
吐出された冷媒でシリンダ５が加熱されてもチューブ１
９内を流れる冷媒が暖められないようにしている。そし
て、回転圧縮要素４はシリンダ５内に流入する冷媒の温
度上昇が抑えられ、冷凍能力を向上できるようにしてい
る。The suction device 16 is constructed by inserting a rectangular tube 19 into the cylindrical suction hole 15.
A space 24 is formed around the outer periphery of the tube 1, so that even if the cylinder 5 is heated by the refrigerant discharged into the compressed closed container l, the tube 1
This prevents the refrigerant flowing inside 9 from heating up. The rotary compression element 4 suppresses the temperature rise of the refrigerant flowing into the cylinder 5, thereby improving the refrigerating capacity.
また、吸込装置１６のチューブ１９は胴体２２の四角形
に形成してベーン１０から遠い方の一辺を回転軸２の軸
線方向と平行に設けることにより、シリンダ５内での圧
縮行程を早められ、排除容積を向上できるようにしてい
る。In addition, the tube 19 of the suction device 16 is formed into a square shape of the body 22, and one side far from the vane 10 is provided parallel to the axial direction of the rotating shaft 2, thereby speeding up the compression stroke within the cylinder 5 and eliminating the This allows for increased volume.
チューブ１９の円筒部２３は接続管２０との接続部を拡
管して吸込孔１５内に圧スすることにより、密閉容器１
内の圧縮冷媒がシリンダ５内の低圧室９内に吸込装置１
６を介して吸込孔１５からノークしないようにしている
。また、チューブ１９のフランジ２１は吸込孔１５の孔
径と同じにしてこの吸込孔の内壁に圧入することにより
、胴体２２の外周に形成される空間２４をシリンダ５内
と区画するようにしている。The cylindrical part 23 of the tube 19 is expanded at the connection part with the connecting pipe 20 and pressurized into the suction hole 15 to close the closed container 1.
The compressed refrigerant in the suction device 1 enters the low pressure chamber 9 in the cylinder 5.
6 from the suction hole 15. Further, the flange 21 of the tube 19 has the same diameter as the suction hole 15 and is press-fitted into the inner wall of the suction hole, thereby separating a space 24 formed on the outer periphery of the body 22 from the inside of the cylinder 5.
この発明は円筒状の吸込孔１５内に挿入した四角形のチ
ューブ１９で、このチューブの外周に空間２４を形成す
ることにより、密閉容器１内に吐出された圧縮冷媒でシ
リンダ５が加熱されても吸込装置１６を通ってこのシリ
ンダ内に吸込まれる冷媒が暖められないようにし、冷凍
能力の低下を防止できるようにするものである。This invention uses a rectangular tube 19 inserted into a cylindrical suction hole 15, and by forming a space 24 around the outer periphery of this tube, even if the cylinder 5 is heated by the compressed refrigerant discharged into the closed container 1. This prevents the refrigerant sucked into this cylinder through the suction device 16 from being warmed up, thereby preventing a decrease in refrigerating capacity.
（ト）発明の効果
以上のようにこの発明によれば、シリンダに設けた円筒
状の吸込孔内に多角形のチューブを挿入し、このチュー
ブの外周に空間を形成したのであるから、シリンダ内に
吸込まれる冷媒の温度上昇を防止でき、冷凍能力を向上
できるものである。(g) Effects of the invention As described above, according to this invention, a polygonal tube is inserted into the cylindrical suction hole provided in the cylinder, and a space is formed around the outer circumference of the tube. It is possible to prevent the temperature rise of the refrigerant sucked into the refrigerant and improve the refrigerating capacity.
しかも、この発明はベーンから遠い側のチューブの辺を
回転軸の軸線方向と平行にすることにより、シリンダ内
に吸込まれた冷媒の圧縮行程を早めて排除容積の増加を
はかり、吸込冷媒の低温化と相まって冷凍能力の向上を
はかることができるものである。Moreover, by making the side of the tube on the side far from the vane parallel to the axial direction of the rotating shaft, this invention accelerates the compression stroke of the refrigerant sucked into the cylinder and increases the displacement volume, thereby reducing the temperature of the sucked refrigerant. In combination with this, it is possible to improve the refrigeration capacity.
第１図はこの発明の一実施例を示す回転圧縮機の縦断面
図、第２図は同じく吸込装置の拡大断面図、第３図は同
じくシリンダの要部拡大斜視図、第４図は同じくシリン
ダの要部側面図、第５図は従来例を示す回転圧縮機の要
部断面図である。
１・・・密閉容器、 ２・・・回転軸、 ４・・・回転
圧縮要素、 ５・・・シリンダ、 ８・・・高圧室
、 ９・・・低圧室、 １ｏ・・・ベーン、 工
５・・・吸込孔、 １９・・・チューブ。
第 １ 図Fig. 1 is a vertical sectional view of a rotary compressor showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the suction device, Fig. 3 is an enlarged perspective view of the main part of the cylinder, and Fig. 4 is the same. FIG. 5 is a side view of the main part of the cylinder, and FIG. 5 is a sectional view of the main part of a rotary compressor showing a conventional example. DESCRIPTION OF SYMBOLS 1... Airtight container, 2... Rotating shaft, 4... Rotating compression element, 5... Cylinder, 8... High pressure chamber, 9... Low pressure chamber, 1o... Vane, Engineering 5 ...Suction hole, 19...Tube. Figure 1
Claims (1)
要素をシリンダと、このシリンダの内壁に沿って回転軸
によって回転するローラと、このローラに接してシリン
ダ内を高圧室及び低圧室に区画するベーンとで構成し、
前記シリンダのベーンの近傍に低圧室に連通する円筒状
の吸込孔を設けた回転圧縮機において、前記吸込孔内に
断面が多角形のチューブを取付けたことを特徴とする回
転圧縮機。 ２、ベーンから遠い側の多角形のチューブの辺を、回転
軸の軸線方向と平行に設けたことを特徴とする第１請求
項に記載された回転圧縮機。[Claims] 1. A rotary compression element is housed in an airtight container, and the rotary compression element is connected to a cylinder, a roller that rotates by a rotating shaft along the inner wall of the cylinder, and a roller that is in contact with the roller and runs inside the cylinder. It consists of a vane that divides into a high pressure chamber and a low pressure chamber,
A rotary compressor comprising a cylindrical suction hole communicating with a low pressure chamber near a vane of the cylinder, characterized in that a tube having a polygonal cross section is installed in the suction hole. 2. The rotary compressor according to claim 1, wherein the side of the polygonal tube on the side far from the vane is provided parallel to the axial direction of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5864390A JPH03260392A (en) | 1990-03-09 | 1990-03-09 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5864390A JPH03260392A (en) | 1990-03-09 | 1990-03-09 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03260392A true JPH03260392A (en) | 1991-11-20 |
Family
ID=13090264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5864390A Pending JPH03260392A (en) | 1990-03-09 | 1990-03-09 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03260392A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5616017A (en) * | 1994-12-28 | 1997-04-01 | Kabushiki Kaisha Toshiba | Rotary compressor having a cylinder portion formed of a valve sheet |
| KR20020040039A (en) * | 2000-11-23 | 2002-05-30 | 구자홍 | Apparatus for protecting gas-leakage of rotary compressor |
| KR100455423B1 (en) * | 2002-03-14 | 2004-11-06 | 주식회사 엘지이아이 | Suction structure of rotary compressor |
| JP2008163832A (en) * | 2006-12-28 | 2008-07-17 | Daikin Ind Ltd | Fluid machine |
| WO2013069275A1 (en) * | 2011-11-08 | 2013-05-16 | パナソニック株式会社 | Compressor |
-
1990
- 1990-03-09 JP JP5864390A patent/JPH03260392A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5616017A (en) * | 1994-12-28 | 1997-04-01 | Kabushiki Kaisha Toshiba | Rotary compressor having a cylinder portion formed of a valve sheet |
| KR20020040039A (en) * | 2000-11-23 | 2002-05-30 | 구자홍 | Apparatus for protecting gas-leakage of rotary compressor |
| KR100455423B1 (en) * | 2002-03-14 | 2004-11-06 | 주식회사 엘지이아이 | Suction structure of rotary compressor |
| JP2008163832A (en) * | 2006-12-28 | 2008-07-17 | Daikin Ind Ltd | Fluid machine |
| WO2013069275A1 (en) * | 2011-11-08 | 2013-05-16 | パナソニック株式会社 | Compressor |
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