JPS6329089A - Closed type rotary compressor - Google Patents
Closed type rotary compressorInfo
- Publication number
- JPS6329089A JPS6329089A JP16971686A JP16971686A JPS6329089A JP S6329089 A JPS6329089 A JP S6329089A JP 16971686 A JP16971686 A JP 16971686A JP 16971686 A JP16971686 A JP 16971686A JP S6329089 A JPS6329089 A JP S6329089A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- chamber
- discharge valve
- valve chamber
- liquid
- 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
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は密閉形ロータリ圧縮機、特に吐出弁の信頼性向
上および圧縮機容積効率向上に好適なロータリ、圧縮機
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hermetic rotary compressor, and particularly to a rotary compressor suitable for improving the reliability of a discharge valve and improving the volumetric efficiency of the compressor.
従来の密閉形ロータリ圧縮機の構造を第２図、１３図に
より説明する。なお、第３図は、第２図のＡ−Ａ断面図
である。図において、１は密閉容器で密閉容器内部の上
方には電動要素２が、下方には回転圧縮要素３が配設収
納されている。The structure of a conventional hermetic rotary compressor will be explained with reference to FIGS. 2 and 13. Note that FIG. 3 is a sectional view taken along line AA in FIG. 2. In the figure, reference numeral 1 denotes a closed container, in which an electric element 2 is placed above and a rotary compression element 3 is placed below.
４は前記電動要素によって駆動されるクランク軸。4 is a crankshaft driven by the electric element.
５はクランク軸４と同心のシリンダ室６を内周部に形成
するシリンダ、７はシリンダ室６の上側開口部を閉塞す
る上部軸受けで、この上部軸受けの７ランジ８の外周に
は蓋状のカップ２０が圧入装着されていて吐出消音室１
０を形成している。5 is a cylinder that forms a cylinder chamber 6 concentric with the crankshaft 4 on its inner circumference, 7 is an upper bearing that closes the upper opening of the cylinder chamber 6, and the outer periphery of the 7 flange 8 of this upper bearing is provided with a lid-shaped The cup 20 is press-fitted into the discharge silencing chamber 1.
0 is formed.
１１はシリンダ室６の下側開口部を閉塞する下部軸受け
、１２はシリンダ室６内にクランク軸４の偏心部１３に
装着されて収納され偏心運動するローラ、１４はシリン
ダ５にその軸方向に沿って形成された案内溝、１５は案
内溝１４に案内されてローラ１２の外周面に摺接してシ
リンダ室６を高圧室と低圧室に区分するベーン、１６は
ベーン１５をローラ１２の外周面に押圧するばね、１７
はシリンダ室６のラジアル方向に形成された吐出ポート
、１８は吐出ポート１７と連通してシ１Ｊンダ−５の軸
方向に沿って形成された吐出弁室、１９は吐出弁室１８
内に収納され、かつ吐出ポート１７の開閉を行うための
弾性薄板で形成された吐出弁である。11 is a lower bearing that closes the lower opening of the cylinder chamber 6; 12 is a roller that is mounted on the eccentric portion 13 of the crankshaft 4 in the cylinder chamber 6 and moves eccentrically; and 14 is a roller that is attached to the cylinder 5 in its axial direction. 15 is a vane that is guided by the guide groove 14 and slides on the outer peripheral surface of the roller 12 to divide the cylinder chamber 6 into a high pressure chamber and a low pressure chamber; 16 is a vane that guides the vane 15 along the outer peripheral surface of the roller 12; a spring pressing against, 17;
18 is a discharge port formed in the radial direction of the cylinder chamber 6, 18 is a discharge valve chamber formed along the axial direction of the cylinder 5 in communication with the discharge port 17, and 19 is a discharge valve chamber 18.
This is a discharge valve formed of an elastic thin plate for opening and closing the discharge port 17.
以上構成において圧縮機が運転されると、シリンダ室６
で圧縮された高圧ガスは吐出ボー）１７、吐出弁室１８
を経て吐出弁室１８より上方に位置する吐出消音室１０
へと移行するわけであるが、吐出弁室が吐出消音室より
下方にあるので冷凍サイクルより戻ってきた冷凍機油が
吐出弁室１８に滞溜する。また、蒸発器での熱交換量が
少ない状態で運転される場合等には液冷媒が圧縮機に戻
ってさて、この液冷媒が吐出弁室１８に滞溜する。When the compressor is operated with the above configuration, the cylinder chamber 6
The high-pressure gas compressed by the discharge valve chamber 17 and the discharge valve chamber 18
A discharge silencing chamber 10 located above the discharge valve chamber 18 through
However, since the discharge valve chamber is located below the discharge silencing chamber, the refrigerating machine oil returned from the refrigeration cycle accumulates in the discharge valve chamber 18. Further, when the compressor is operated with a small amount of heat exchanged in the evaporator, the liquid refrigerant returns to the compressor and accumulates in the discharge valve chamber 18.
なお、この種の従来技術として関連するものには例えば
実開昭５７−１２１７９４が挙げられる。Incidentally, a related prior art of this type includes, for example, Japanese Utility Model Application Laid-Open No. 57-121794.
上記従来構造では圧縮機運転時に吐出弁室内に液が滞溜
するため、吐出弁はこの液の中で作動することになり、
吐出弁の信頼性が低下するとともに吐出弁のとじ遅れ現
象が発生し易（、圧縮機の一容債効率を低下させるおそ
れがあった。In the conventional structure described above, liquid accumulates in the discharge valve chamber during compressor operation, so the discharge valve operates in this liquid.
The reliability of the discharge valve decreases, and a closing delay phenomenon of the discharge valve tends to occur (there is a risk that the unit efficiency of the compressor may be reduced).
本発明の目的は従来構造の密閉形ロータリ圧縮機の有す
る問題点を解消して信頼性の高い容積効率の良いロータ
リ圧縮機を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a rotary compressor which is highly reliable and has good volumetric efficiency by solving the problems of the conventional hermetic rotary compressor.
上記目的は吐出弁室内に吐出された高圧ガスを吐出弁室
より下方に配置した吐出消音室に導（ことにより達成さ
れる。The above object is achieved by guiding high-pressure gas discharged into the discharge valve chamber to a discharge silencing chamber disposed below the discharge valve chamber.
すなわち、高圧ガスは吐出弁室に吐出された後、この吐
出弁室より下方に位置する吐出消音室に放出されるので
圧縮機運転時に吐出弁室に吐出された冷凍機油等の液は
直ちに下部の吐出消音室へと放出され、吐出弁室内に液
が滞溜することがない。In other words, after high-pressure gas is discharged into the discharge valve chamber, it is discharged into the discharge silencing chamber located below the discharge valve chamber, so liquids such as refrigerating machine oil discharged into the discharge valve chamber when the compressor is operating are immediately discharged to the lower part. The liquid is discharged into the discharge muffling chamber of the valve, and the liquid does not accumulate in the discharge valve chamber.
以下、本発明の一実施例を第１図により説明する。なお
、第１図において、第２図及び第３図と同一符号のもの
は同−又は均等物を示す。An embodiment of the present invention will be described below with reference to FIG. In FIG. 1, the same reference numerals as in FIGS. 2 and 3 indicate the same or equivalent parts.
第１図において、■は密閉容器でこの密閉容器内部の上
方には電動要素２が、下方には回転圧縮装１３が配設収
納されている。In FIG. 1, ``■'' is a closed container, and inside this closed container, an electric element 2 is arranged and housed in an upper part and a rotary compression device 13 in a lower part.
６はシリンダ５の内周部に形成されたシリンダ室、７は
シリンダ室６の上側開口部を閉塞する上部軸受け、１１
はシリンダ室６の下側開口部を閉塞する下部軸受けで、
この下部軸受けの７ランジ９の外周には蓋状のカップ２
１が圧入装着されていて吐出消音室１０を形成している
。6 is a cylinder chamber formed in the inner peripheral part of the cylinder 5; 7 is an upper bearing that closes the upper opening of the cylinder chamber 6; 11
is a lower bearing that closes the lower opening of the cylinder chamber 6;
A lid-shaped cup 2 is attached to the outer periphery of the 7 flange 9 of this lower bearing.
1 is press-fitted to form a discharge silencing chamber 10.
１７はシリンダ室６のラジアル方向に形成された吐出ポ
ート、１８はシリンダ室６の軸方向に沿って形成された
吐出弁室で前記シリンダ室６に連通ずるとともに吐出弁
室より下方に位置する吐出消音室１０に連通している。17 is a discharge port formed in the radial direction of the cylinder chamber 6, and 18 is a discharge valve chamber formed along the axial direction of the cylinder chamber 6, which communicates with the cylinder chamber 6 and is located below the discharge valve chamber. It communicates with the silencing room 10.
１９は吐出弁室６内に収納され、かつ吐出ポート１７の
開閉を行うための吐出弁である。A discharge valve 19 is housed in the discharge valve chamber 6 and is used to open and close the discharge port 17.
本実施例によれば圧縮機運転時に高圧吐出ガスは吐出ポ
ート、吐出弁室を経て吐出弁室より下方に位置する吐出
消音室へと移行するので冷凍サイクルより戻ってきた冷
凍機油等の液は吐出弁室に吐出された後直ちに下部の消
音室へと放出され吐出弁室内に液が滞溜することはない
。According to this embodiment, when the compressor is in operation, the high-pressure discharge gas passes through the discharge port and the discharge valve chamber to the discharge silencing chamber located below the discharge valve chamber, so that liquids such as refrigeration oil returned from the refrigeration cycle are After being discharged into the discharge valve chamber, the liquid is immediately discharged into the lower silencing chamber, so that the liquid does not accumulate in the discharge valve chamber.
−〔発明の効果〕
本発明によれば、圧縮機運転時に吐出弁室に液が滞溜し
ないので吐出弁は液の中で作動することはない。従がっ
て、吐出弁の信頼性を低下させることがなく、また吐出
弁の液中作動によるとじ遅れ現象もなく圧縮機の容積効
率を向上させることができる。- [Effects of the Invention] According to the present invention, since liquid does not accumulate in the discharge valve chamber during compressor operation, the discharge valve does not operate in liquid. Therefore, the volumetric efficiency of the compressor can be improved without lowering the reliability of the discharge valve and without closing delay caused by submerged operation of the discharge valve.
第１図は本発明の一実施例を示す密閉形ロータリ圧縮機
の縦断面図、第２図は従来の密閉形ｏ −タリ圧縮機の
縦断面図、第３図は第２図のＡＡ断面図である。
１・・・密閉容器、２・・・電動要素、３・・・回転圧
縮要素、４・・・クランク軸、５・・・シリンダ、６・
・・シリンダ室、７・・・上部軸受け、８．９・・・フ
ランジ、１０・・・吐出消音室、１１・・・下部軸受け
、１２・・・ローラ、１３・・・偏心部、１４・・・案
内溝、１５・・・ベーン、１６・・・ばね、１７・・・
吐出ポート、１８・・・吐出弁室、１９・・・吐出弁、
２０．２１・・・カップ。 コ不代理人 弁理士
小 川 勝 ’ｔ＋−−Ｊ ′芽１ 目
ヲ・・フラ〉シ” １７・ 口土云ホード２Ｉ・・
・ カンフ１茅２ 口Fig. 1 is a longitudinal sectional view of a hermetic rotary compressor showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of a conventional hermetic o-tary compressor, and Fig. 3 is a cross section taken along line AA in Fig. 2. It is a diagram. DESCRIPTION OF SYMBOLS 1... Airtight container, 2... Electric element, 3... Rotating compression element, 4... Crankshaft, 5... Cylinder, 6...
... Cylinder chamber, 7... Upper bearing, 8.9... Flange, 10... Discharge silencing chamber, 11... Lower bearing, 12... Roller, 13... Eccentric part, 14... ...Guide groove, 15...Vane, 16...Spring, 17...
Discharge port, 18...Discharge valve chamber, 19...Discharge valve,
20.21...Cup. Non-representative patent attorney
Masaru Ogawa 't+--J 'bud 1 eye...flash' 17. Kuchidoun Horde 2I...
・Kanfu 1 kaya 2 mouths
Claims (1)
ベアリング部材を配設するとともに、シリンダ室のラジ
アル方向に吐出ポートを形成し、かつこの吐出ポートに
連通した吐出弁室を有する密閉形ロータリ圧縮機におい
て、上記下部ベアリング部材とで吐出消音室を形成する
カップ状マフラを具備すると共に上記吐出消音室と上記
吐出弁室とを連通したことを特徴とする密閉形ロータリ
圧縮機。1. Closed type rotary compression having an upper bearing member at the top of the cylinder and a lower bearing member at the bottom, a discharge port formed in the radial direction of the cylinder chamber, and a discharge valve chamber communicating with the discharge port. What is claimed is: 1. A closed rotary compressor, comprising: a cup-shaped muffler forming a discharge silencing chamber with the lower bearing member, and communicating the discharge silencing chamber with the discharge valve chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16971686A JPS6329089A (en) | 1986-07-21 | 1986-07-21 | Closed type rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16971686A JPS6329089A (en) | 1986-07-21 | 1986-07-21 | Closed type rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6329089A true JPS6329089A (en) | 1988-02-06 |
Family
ID=15891540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16971686A Pending JPS6329089A (en) | 1986-07-21 | 1986-07-21 | Closed type rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6329089A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH051884U (en) * | 1991-03-13 | 1993-01-14 | ダイキン工業株式会社 | Rotary compressor |
| KR101176951B1 (en) | 2005-12-30 | 2012-08-30 | 엘지전자 주식회사 | Modulation type rotary compressor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566980B2 (en) * | 1974-03-28 | 1981-02-14 | ||
| JPS59208195A (en) * | 1983-05-11 | 1984-11-26 | Mitsubishi Electric Corp | Construction of discharge valve of compressor |
-
1986
- 1986-07-21 JP JP16971686A patent/JPS6329089A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566980B2 (en) * | 1974-03-28 | 1981-02-14 | ||
| JPS59208195A (en) * | 1983-05-11 | 1984-11-26 | Mitsubishi Electric Corp | Construction of discharge valve of compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH051884U (en) * | 1991-03-13 | 1993-01-14 | ダイキン工業株式会社 | Rotary compressor |
| KR101176951B1 (en) | 2005-12-30 | 2012-08-30 | 엘지전자 주식회사 | Modulation type rotary compressor |
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