JPH0544671A - Rotary type sealed compressor - Google Patents
Rotary type sealed compressorInfo
- Publication number
- JPH0544671A JPH0544671A JP20505591A JP20505591A JPH0544671A JP H0544671 A JPH0544671 A JP H0544671A JP 20505591 A JP20505591 A JP 20505591A JP 20505591 A JP20505591 A JP 20505591A JP H0544671 A JPH0544671 A JP H0544671A
- Authority
- JP
- Japan
- Prior art keywords
- vane
- lubricating oil
- cylinder
- groove
- compression
- 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)
- Rotary Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はエアコン・冷蔵庫等に使
用され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 used in air conditioners, refrigerators and the like.
【０００２】[0002]
【従来の技術】従来のこの種の回転型密閉圧縮機の構造
を示す断面図を図１，図６，図７に示す。５は密閉容器
であり、６は密閉容器１０に固定されたモータのステー
タである。７はロータ、８は回転軸であり、ロータ７は
回転軸８に圧入固定されている。この圧縮機の圧縮機構
部は、シリンダ９、上軸受け１０、下軸受け１１であ
り、シリンダ９は密閉容器５に固定されており、上軸受
け１０と下軸受け１１はシリンダ９にボルト結合されて
おり、ピストン４は回転軸８のクランク部１２に勘合さ
れて回転し、このピストン４に図７に示すベーン３はそ
の先端は接して、シリンダ９に形成されたベーン溝１３
を往復運動するように構成されている。2. Description of the Related Art Sectional views showing the structure of a conventional rotary hermetic compressor of this type are shown in FIGS. Reference numeral 5 is a closed container, and 6 is a motor stator fixed to the closed container 10. Reference numeral 7 is a rotor, 8 is a rotary shaft, and the rotor 7 is press-fitted and fixed to the rotary shaft 8. The compression mechanism portion of this compressor is a cylinder 9, an upper bearing 10, and a lower bearing 11. The cylinder 9 is fixed to the closed container 5, and the upper bearing 10 and the lower bearing 11 are bolted to the cylinder 9. The piston 4 rotates by being fitted into the crank portion 12 of the rotary shaft 8, and the vane 3 shown in FIG.
Is configured to reciprocate.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の圧縮機構部において、シリンダ９のベーン溝
１３とベーン側面３ａは潤滑油の供給機構を有していな
いため双方は摺動し、摺動音が発生したり、圧縮室と吸
入室の冷媒圧力バランスによりシリンダ・ベーン間にお
ける衝突音が発生していた。また、双方の摺動により焼
き付きを発生したり、摩擦損失により圧縮機効率の低下
を招いていた。However, in such a conventional compression mechanism portion, since the vane groove 13 and the vane side surface 3a of the cylinder 9 do not have a lubricating oil supply mechanism, both slide and slide. A dynamic noise was generated, and a collision noise between the cylinder and the vane was generated due to the refrigerant pressure balance between the compression chamber and the suction chamber. In addition, seizure occurs due to the sliding of both, and friction loss causes a reduction in compressor efficiency.
【０００４】従来、この様な問題を解決するために実開
昭６２−１８４１８４号公報（図９（ｂ））や特開昭６
２−２７１９８５号公報（図９（ａ））のようにベーン
側面１９に図９のような溝１４を設けていた。しかしな
がら、図９のような構成の溝１４では、供給された潤滑
油は上下方向のシリンダ・軸受けの隙間に逃げてしまい
上記課題を解決するに至っていない。Conventionally, in order to solve such a problem, Japanese Utility Model Laid-Open No. 62-184184 (FIG. 9 (b)) and Japanese Patent Laid-Open No. 6-184184.
The groove 14 as shown in FIG. 9 was provided on the side surface 19 of the vane as in Japanese Patent Laid-Open No. 2-271985 (FIG. 9A). However, in the groove 14 having the configuration as shown in FIG. 9, the supplied lubricating oil escapes into the gap between the cylinder and the bearing in the vertical direction, and the above problem has not been solved yet.
【０００５】本発明は、上記従来例の課題を解決するも
ので、ベーン溝１３とベーン側面３ａの衝突を緩和し、
これに伴う密閉型圧縮機の振動・騒音を抑制することを
目的とするものである。The present invention solves the above-mentioned problems of the prior art by reducing the collision between the vane groove 13 and the side surface 3a of the vane,
The purpose is to suppress the vibration and noise of the hermetic compressor associated therewith.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に本発明は、圧縮要素部のベーンの吸入室に面する側面
において、ベーン先端よりベーンのストローク距離をは
ずして潤滑油を保持するための潤滑油溜を設けたもので
ある。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention aims to retain the lubricating oil by removing the stroke distance of the vane from the tip of the vane on the side surface of the compression element portion facing the suction chamber of the vane. The lubricating oil reservoir is provided.
【０００７】[0007]
【作用】圧縮要素部のベーンの吸入室に面する側面にお
いて、ベーン先端よりベーンのストローク距離をはずし
て潤滑油を保持するための潤滑油溜を形成することによ
って、潤滑油溜に保持された潤滑油はベーン往復運動に
よって潤滑油を少量ずつ供給してシリンダ溝・ベーン間
に油膜を形成せしめる。前記潤滑油溜はベーン溝以外の
どの箇所にも通じていないので、従来のベーン溝のよう
に潤滑油がシリンダ溝・ベーン間以外の箇所に逃げてい
くこともない。In the side surface of the compression element portion facing the suction chamber of the vane, the stroke distance of the vane is removed from the tip of the vane to form a lubricating oil reservoir for holding the lubricating oil, thereby retaining the lubricating oil reservoir. The lubricating oil is supplied little by little by the vane reciprocating motion to form an oil film between the cylinder groove and the vane. Since the lubricating oil reservoir does not communicate with any portion other than the vane groove, unlike the conventional vane groove, the lubricating oil does not escape to a portion other than between the cylinder groove and the vane.
【０００８】つまり、シリンダ溝・ベーン摺動部分に潤
滑油膜を形成せしめることによって、双方の摺動音や圧
縮室と吸入室の冷媒圧力バランスによりシリンダ・ベー
ン間における衝突音を抑制することができる。That is, by forming a lubricating oil film on the sliding portion of the cylinder groove / vane, it is possible to suppress the sliding noise of both and the collision noise between the cylinder / vane due to the refrigerant pressure balance between the compression chamber and the suction chamber. .
【０００９】[0009]
【実施例】以下本発明の一実施例における回転型密閉圧
縮機について図面とともに説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A rotary hermetic compressor according to an embodiment of the present invention will be described below with reference to the drawings.
【００１０】図１は、本発明の１実施例である回転型密
閉圧縮機の断面図を示している。５は密閉容器であり、
６は密閉容器５に固定されたモータのステータである。
７はロータ、８は回転軸であり、ロータ７は回転軸８に
圧入固定されている。この圧縮機の圧縮機構部は、シリ
ンダ９、上軸受け１０、下軸受け１１であり、シリンダ
９は密閉容器５に固定されており、上軸受け１０と下軸
受け１１はシリンダ９にボルト結合されており、ピスト
ン４は回転軸８のクランク部１２に勘合されて回転し、
またベーンバネ１５の力によってこのピストン４にベー
ン３先端は接してシリンダ９に形成されたベーン溝１３
を図８のようなストローク１６でもって往復運動するよ
うに構成されている。ベーン３の吸入室側の側面には図
２，３のような潤滑油溜２が形成されており、上記ベー
ンの往復運動の際には潤滑油を保持したり、供給したり
してシリンダ９のベーン溝１３とベーン３の摺動面に潤
滑油膜を形成する。FIG. 1 is a sectional view of a rotary hermetic compressor which is an embodiment of the present invention. 5 is a closed container,
Reference numeral 6 denotes a motor stator fixed to the closed container 5.
Reference numeral 7 is a rotor, 8 is a rotary shaft, and the rotor 7 is press-fitted and fixed to the rotary shaft 8. The compression mechanism portion of this compressor is a cylinder 9, an upper bearing 10, and a lower bearing 11. The cylinder 9 is fixed to the closed container 5, and the upper bearing 10 and the lower bearing 11 are bolted to the cylinder 9. , The piston 4 rotates by being fitted into the crank portion 12 of the rotary shaft 8,
Further, the tip of the vane 3 is brought into contact with the piston 4 by the force of the vane spring 15, and the vane groove 13 formed in the cylinder 9 is formed.
Is configured to reciprocate with a stroke 16 as shown in FIG. A lubricating oil sump 2 as shown in FIGS. 2 and 3 is formed on the side surface of the vane 3 on the suction chamber side. The lubricating oil is retained or supplied during the reciprocating motion of the vane to supply the cylinder 9 with the lubricating oil. A lubricating oil film is formed on the sliding surface between the vane groove 13 and the vane 3.
【００１１】したがって、ベーン側面の潤滑油溜によっ
てシリンダ９のベーン溝１３とベーン３の摺動面に潤滑
油が不足することが防止できるので焼き付きや摩擦損失
による圧縮機効率の低下を防止でき、双方の摺動による
騒音も抑制できる。Therefore, it is possible to prevent a shortage of the lubricating oil on the sliding surface of the vane groove 13 of the cylinder 9 and the vane 3 due to the lubricating oil reservoir on the side surface of the vane, so that it is possible to prevent the deterioration of the compressor efficiency due to seizure or friction loss. It is possible to suppress the noise caused by the sliding of both.
【００１２】また、ベーン３は圧縮機構部内の冷媒の吸
入室と圧縮室の圧力差によってベーン溝１３内でピスト
ン４回転方向で不安定な挙動を示している。その中でも
クランク角度１８０゜の近辺では圧縮室１８内の急激な
圧縮工程によってベーン１９は吸入室側１７へ大きな力
２０をうける。このため、従来のベーンではベーン溝１
３とベーン３は衝突して圧縮機シェル振動２１に図５の
ような衝撃振動１９が発生する。しかしながら、ベーン
側面において潤滑油溜２を形成することによって、ベー
ン溝１３との間に油膜が形成され、油膜がクッションの
役割を果たし、図４のように上記挙動時に発生する衝撃
振動を抑制することができる。これにより、回転型圧縮
機の振動・騒音を抑制することができる。The vane 3 exhibits unstable behavior in the vane groove 13 in the rotation direction of the piston 4 due to the pressure difference between the suction chamber and the compression chamber of the refrigerant in the compression mechanism portion. Among them, in the vicinity of the crank angle of 180 °, the vane 19 receives a large force 20 toward the suction chamber side 17 due to the rapid compression process in the compression chamber 18. Therefore, in the conventional vane, the vane groove 1
3 and the vane 3 collide with each other, and shock vibration 19 as shown in FIG. However, by forming the lubricating oil sump 2 on the side surface of the vane, an oil film is formed between the vane groove 13 and the vane groove 13, and the oil film serves as a cushion to suppress shock vibration generated during the above-described behavior as shown in FIG. be able to. As a result, vibration and noise of the rotary compressor can be suppressed.
【００１３】[0013]
【発明の効果】圧縮要素部のベーンの吸入室に面する側
面において、ベーン先端よりベーンのストローク距離を
はずして潤滑油を保持するための潤滑油溜を形成するこ
とによって、双方の摺動による騒音や圧縮室と吸入室の
冷媒圧力バランスによりシリンダ・ベーン間における衝
突音を抑制できる。また、シリンダ・ベーン間に潤滑油
膜が形成できるためシリンダ・ベーン間の摺動音の抑制
やさらにベーン焼き付きや双方の摺動による摩擦損失に
よる圧縮機効率の低下を防止することもできる。EFFECTS OF THE INVENTION In the side surface of the compression element portion facing the suction chamber of the vane, the stroke distance of the vane is removed from the tip of the vane to form a lubricating oil reservoir for holding the lubricating oil. Noise and collision noise between the cylinder and the vane can be suppressed by the balance of the refrigerant pressure between the compression chamber and the suction chamber. In addition, since a lubricating oil film can be formed between the cylinder and the vane, it is possible to suppress the sliding noise between the cylinder and the vane, and prevent the reduction of the compressor efficiency due to the burn loss of the vane and the friction loss due to the sliding of both.
【図１】本発明の１実施例である回転型圧縮機の断面図FIG. 1 is a cross-sectional view of a rotary compressor that is an embodiment of the present invention.
【図２】本発明の実施例を示す潤滑油溜を形成したベー
ンの側面図FIG. 2 is a side view of a vane in which a lubricating oil reservoir is formed according to an embodiment of the present invention.
【図３】他の実施例のベーンの側面図FIG. 3 is a side view of another embodiment of a vane.
【図４】本発明のベーンによる圧縮機のシェル振動波形
図FIG. 4 is a shell vibration waveform diagram of the compressor according to the vane of the present invention.
【図５】従来のベーンによる圧縮機のシェル振動波形図FIG. 5: Shell vibration waveform diagram of a conventional compressor with vanes
【図６】圧縮機構部の平面図FIG. 6 is a plan view of a compression mechanism section.
【図７】同平面図FIG. 7 is a plan view of the same.
【図８】従来のベーンの斜視図FIG. 8 is a perspective view of a conventional vane.
【図９】（ａ）はクランク角度１８０゜の時のベーンの
状態の概略側面図 （ｂ）は従来の発明によるベーン溝を示す断面図9 (a) is a schematic side view of a vane state at a crank angle of 180 °, and FIG. 9 (b) is a sectional view showing a vane groove according to a conventional invention.
２ 潤滑油溜 ３ ベーン ９ シリンダ １３ ベーン溝 １６ ストローク距離 2 Lubricant oil reservoir 3 Vane 9 Cylinder 13 Vane groove 16 Stroke distance
Claims (1)
この電動要素の回転軸によって駆動される圧縮要素とを
収納し、前記回転軸のクランク部に回転自在に勘合され
たピストンとこのピストンと先端が接して往復運動を行
い、シリンダ内を冷媒の吸入室と圧縮室に分けるベーン
とシリンダ両端を閉塞する上端板および下端板からなる
前記圧縮要素内に有する回転型圧縮機において、前記ベ
ーンの吸入室に面する側面にベーン先端からこのベーン
のストローク距離を除いた位置に潤滑油を保持させるた
めの潤滑油溜を形成したことを特徴とする回転型密閉圧
縮機。1. An electric element having a rotary shaft in a closed container,
A compression element driven by the rotary shaft of the electric element is housed, and a piston rotatably fitted to the crank portion of the rotary shaft and the tip of the piston come into contact with each other to reciprocate to suck refrigerant in the cylinder. In a rotary compressor having a compression element consisting of an upper plate and a lower plate that closes both ends of a cylinder and a vane that divides into a chamber and a compression chamber, a stroke distance of the vane from a tip of the vane to a side surface facing the suction chamber of the vane. A rotary hermetic compressor characterized in that a lubricating oil reservoir for holding the lubricating oil is formed at a position other than the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20505591A JPH0544671A (en) | 1991-08-15 | 1991-08-15 | Rotary type sealed compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20505591A JPH0544671A (en) | 1991-08-15 | 1991-08-15 | Rotary type sealed compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0544671A true JPH0544671A (en) | 1993-02-23 |
Family
ID=16500699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20505591A Pending JPH0544671A (en) | 1991-08-15 | 1991-08-15 | Rotary type sealed compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0544671A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07174090A (en) * | 1993-12-20 | 1995-07-11 | Matsushita Electric Ind Co Ltd | Rotary type compressor |
| JP2013256915A (en) * | 2012-06-14 | 2013-12-26 | Mitsubishi Heavy Ind Ltd | Rotary compressor |
| JPWO2021053741A1 (en) * | 2019-09-18 | 2021-03-25 | ||
| WO2021152915A1 (en) * | 2020-01-29 | 2021-08-05 | 株式会社富士通ゼネラル | Rotary compressor |
| CN116255334A (en) * | 2023-01-04 | 2023-06-13 | 郑州凌达压缩机有限公司 | Sliding structure and compressor |
-
1991
- 1991-08-15 JP JP20505591A patent/JPH0544671A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07174090A (en) * | 1993-12-20 | 1995-07-11 | Matsushita Electric Ind Co Ltd | Rotary type compressor |
| JP2013256915A (en) * | 2012-06-14 | 2013-12-26 | Mitsubishi Heavy Ind Ltd | Rotary compressor |
| JPWO2021053741A1 (en) * | 2019-09-18 | 2021-03-25 | ||
| WO2021152915A1 (en) * | 2020-01-29 | 2021-08-05 | 株式会社富士通ゼネラル | Rotary compressor |
| JP2021116797A (en) * | 2020-01-29 | 2021-08-10 | 株式会社富士通ゼネラル | Rotary compressor |
| CN115023551A (en) * | 2020-01-29 | 2022-09-06 | 富士通将军股份有限公司 | Rotary compressor |
| US11959480B2 (en) | 2020-01-29 | 2024-04-16 | Fujitsu General Limited | Rotary compressor including a plurality of recessed portions for retaining lubricating oil |
| CN116255334A (en) * | 2023-01-04 | 2023-06-13 | 郑州凌达压缩机有限公司 | Sliding structure and compressor |
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