JP2006083853A - Scroll compressor with lubricating oil flow-out preventing function - Google Patents

Scroll compressor with lubricating oil flow-out preventing function Download PDF

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Publication number
JP2006083853A
JP2006083853A JP2005264044A JP2005264044A JP2006083853A JP 2006083853 A JP2006083853 A JP 2006083853A JP 2005264044 A JP2005264044 A JP 2005264044A JP 2005264044 A JP2005264044 A JP 2005264044A JP 2006083853 A JP2006083853 A JP 2006083853A
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lubricating oil
scroll
prevention function
refrigerant gas
casing
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JP4943680B2 (en
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Hyo-Keun Park
ヒョ−ケウン パーク
Cheol-Hwan Kim
チョル−ファン キム
Yang-Hee Cho
ヤン−ヒー チョ
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LG Electronics Inc
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LG Electronics Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/026—Lubricant separation

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scroll compressor with lubricating oil flow-out preventing function, having improved compressing performance by effectively preventing the flow-out of lubricating oil together with refrigerant gas when discharged from a casing to a discharge pipe so that the proper amount of lubricating oil resides in the casing at all times to reduce the wear of components. <P>SOLUTION: The scroll compressor with the lubricating oil flow-out preventing function comprises the casing having a storage space formed inside, a fixed scroll having an involute shaped lap and a discharge port for the compressed refrigerant gas to be discharged therethrough, and arranged inside the casing, a rotary scroll having an involute shaped lap and joined to the fixed scroll in relatively rotary motion, and a lubricating oil separating part arranged around the discharge port for separating the lubricating oil from the refrigerant gas to be discharged through the discharge port. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、潤滑油流出防止機能を有するスクロール圧縮機に関し、より詳しくは、ケーシング内部の冷媒ガスが吐出管に吐出されるとき、冷媒ガスと共に潤滑油が流出されることを防止し得る潤滑油流出防止機能を有するスクロール圧縮機に関する。   The present invention relates to a scroll compressor having a lubricating oil outflow prevention function, and more specifically, a lubricating oil capable of preventing the lubricating oil from flowing out together with the refrigerant gas when the refrigerant gas inside the casing is discharged to the discharge pipe. The present invention relates to a scroll compressor having an outflow prevention function.

一般に、スクロール式圧縮機は、空調器分野に広く適用される高効率低騒音の圧縮機であり、固定スクロールと旋回スクロールとが相対旋回運動をすると、その間に形成された複数の圧縮室を持続的に旋回スクロールの中心方向に移動させることで、吸入した冷媒ガスを連続して圧縮及び吐出する構造になっている。   Generally, a scroll compressor is a high-efficiency, low-noise compressor widely applied in the field of air conditioners. When the fixed scroll and the orbiting scroll make a relative orbiting motion, a plurality of compression chambers formed between them are maintained. The refrigerant gas thus sucked is continuously compressed and discharged by moving it in the center of the orbiting scroll.

図４は、従来のスクロール圧縮機の断面図であり、図示されたように、従来のスクロール圧縮機１は、内部に密閉された収容空間が形成されるケーシング１１と、該ケーシング１１の内部に収容されて冷媒ガスを圧縮する圧縮部４１と、前記ケーシング１１の内部に設置されて前記圧縮部４１に駆動力を提供する電動モータ部３１と、を備える。   FIG. 4 is a cross-sectional view of a conventional scroll compressor. As shown in FIG. 4, the conventional scroll compressor 1 includes a casing 11 in which a sealed housing space is formed, and an interior of the casing 11. A compression unit 41 that is accommodated and compresses the refrigerant gas, and an electric motor unit 31 that is installed inside the casing 11 and provides driving force to the compression unit 41 are provided.

前記ケーシング１１には、一方で、冷媒ガスが吸入される吸入管１３が形成され、他方で、冷媒ガスが吐出される吐出管１５が形成される。
さらに、前記ケーシング１１の内部には、前記圧縮部４１及び電動モータ部３１を支持し得るように前記ケーシング１１の上下方向に相互離隔して上部フレーム２１及び下部フレーム３０がそれぞれ設置される。 On the one hand, the casing 11 is formed with a suction pipe 13 through which refrigerant gas is drawn, and on the other hand, a discharge pipe 15 through which refrigerant gas is discharged.
Furthermore, an upper frame 21 and a lower frame 30 are installed in the casing 11 so as to be spaced apart from each other in the vertical direction of the casing 11 so as to support the compression unit 41 and the electric motor unit 31.

前記電動モータ部３１は、前記ケーシング１１の内部に設置される固定子３３と、該固定子３３の内部に上下方向に配置された回転軸３６を中心に回転可能に収容設置される回転子３５と、を備える。   The electric motor unit 31 includes a stator 33 installed inside the casing 11 and a rotor 35 accommodated and installed rotatably about a rotary shaft 36 arranged in the vertical direction inside the stator 33. And comprising.

前記回転軸３６の上部には、偏心部３７が形成され、前記回転軸３６の内部には、前記ケーシング１１の内部下側の潤滑油保存部１７に収容される潤滑油１８を前記圧縮部４１に移送し得るように潤滑油移送路３８が形成される。   An eccentric portion 37 is formed at the upper portion of the rotating shaft 36, and the lubricating oil 18 contained in the lubricating oil storage portion 17 inside the casing 11 is placed inside the rotating shaft 36 in the compression portion 41. The lubricating oil transfer path 38 is formed so that it can be transferred to.

さらに、前記回転軸３６の下部には、回転軸の回転時、前記潤滑油保存部１７に保存されている潤滑油１８を潤滑油移送路３８に沿って前記圧縮部４１に移送し得るように潤滑油移送部３９が備えられる。   Furthermore, below the rotating shaft 36, the lubricating oil 18 stored in the lubricating oil storage unit 17 can be transferred to the compressing unit 41 along the lubricating oil transfer path 38 when the rotating shaft rotates. A lubricating oil transfer unit 39 is provided.

前記圧縮部４１は、インボリュート形状のラップ４４を備えて上部フレーム２１の上側に結合される固定スクロール４３と、前記インボリュート形状のラップ５４を備えて固定スクロール４３と相互結合されて冷媒ガスの圧縮空間を形成すると共に、前記固定スクロール４３に相対旋回運動可能に結合される旋回スクロール５３と、を備える。前記固定スクロール４３の上面中央には、圧縮された冷媒ガスが吐出できるように吐出口４５が形成される。   The compression unit 41 includes an involute-shaped wrap 44 and a fixed scroll 43 coupled to the upper side of the upper frame 21, and the involute-shaped wrap 54 is coupled to the fixed scroll 43 so as to compress refrigerant gas. And a turning scroll 53 coupled to the fixed scroll 43 so as to be capable of relative turning movement. A discharge port 45 is formed at the center of the upper surface of the fixed scroll 43 so that compressed refrigerant gas can be discharged.

このように構成された従来のスクロール圧縮機においては、前記電動モータ部３１に電源が印加されて前記回転軸３６を中心に回転子３５が回転すると、前記偏心部３７に結合された旋回スクロール５３が固定スクロール４３に対して旋回運動するようになり、このとき、前記吸入管１３を通じて吸入された冷媒ガスは、前記固定スクロール４３の中央へ移動しながら圧縮された後、前記吐出口４５を通じて吐出され、該吐出された冷媒ガスは、前記吐出管１５を通じて前記ケーシング１１の外部に吐出される。   In the conventional scroll compressor configured as described above, when power is applied to the electric motor unit 31 and the rotor 35 rotates about the rotating shaft 36, the orbiting scroll 53 coupled to the eccentric portion 37 is used. The refrigerant gas sucked through the suction pipe 13 is compressed while moving to the center of the fixed scroll 43 and then discharged through the discharge port 45. The discharged refrigerant gas is discharged outside the casing 11 through the discharge pipe 15.

このように前記ケーシング１１の外部に吐出された冷媒ガスは、冷凍サイクルに沿って循環された後、また、前記吸入管１３を通じて前記ケーシング１１の内部に流入される過程を繰り返す。   The refrigerant gas discharged to the outside of the casing 11 as described above is circulated along the refrigeration cycle and then repeatedly flows into the casing 11 through the suction pipe 13.

しかしながら、このように構成された従来のスクロール圧縮機においては、前記回転軸３６の回転時、前記潤滑油移送路３８に沿って前記圧縮部４１に移送された潤滑油１８が前記固定スクロール４３及び旋回スクロール５３によって圧縮された冷媒ガスと共に前記吐出管１５を通じて前記ケーシング１１の外部に過度に流出されるために、前記ケーシング１１の内部の各構成部品の摩耗防止のために充填された潤滑油が必要量を維持せずに、足りなくなるという問題が発生する。これによって、各部品の摩耗が発生しやすくなるために、各部品の性能が低下し、結果的に、圧縮機の圧縮性能が低下する。   However, in the conventional scroll compressor configured as described above, when the rotary shaft 36 rotates, the lubricating oil 18 transferred to the compression portion 41 along the lubricating oil transfer path 38 is transferred to the fixed scroll 43 and Since the refrigerant gas compressed by the orbiting scroll 53 is excessively discharged to the outside of the casing 11 through the discharge pipe 15, lubricating oil filled to prevent wear of each component inside the casing 11 is used. The problem arises that the necessary amount is not maintained and is insufficient. As a result, the wear of each part is likely to occur, so that the performance of each part is lowered, and as a result, the compression performance of the compressor is lowered.

本発明は、このような従来の問題点を解決するために提案されたものであり、本発明の目的は、ケーシングの内部の冷媒ガスが吐出管に吐出される時に、冷媒ガスと共に潤滑油が流出されることを効果的に防止し、適正量の潤滑油が常にケーシングの内部に残留するようにすることで、各部品の摩耗発生を減少させ、圧縮機の圧縮性能を向上し得る潤滑油流出防止機能付きのスクロール圧縮機を提供することにある。   The present invention has been proposed in order to solve such conventional problems, and the object of the present invention is to provide lubricating oil together with the refrigerant gas when the refrigerant gas inside the casing is discharged into the discharge pipe. Lubricating oil that effectively prevents spilling and ensures that the proper amount of lubricating oil always remains inside the casing, thereby reducing the occurrence of wear on each part and improving the compression performance of the compressor The object is to provide a scroll compressor with an outflow prevention function.

このような目的を達成するために、本発明の潤滑油流出防止機能付きのスクロール圧縮機は、内部に収容空間を形成するケーシングと、インボリュート形状のラップ及び圧縮された冷媒ガスが吐出される吐出口を備えて前記ケーシングの内部に配置される固定スクロールと、インボリュート形状のラップを備えて前記固定スクロールに対して相対旋回運動可能に結合される旋回スクロールと、前記吐出口を通じて吐出される冷媒ガスから潤滑油を分離し得るように前記吐出口の周辺に配置される潤滑油分離部と、を含んで構成されることを特徴とする。   In order to achieve such an object, a scroll compressor with a lubricating oil outflow prevention function according to the present invention includes a casing that forms a housing space therein, an involute wrap, and a discharge gas through which compressed refrigerant gas is discharged. A fixed scroll provided with an outlet and disposed inside the casing, a orbiting scroll provided with an involute wrap so as to be capable of relative orbiting relative to the fixed scroll, and a refrigerant gas discharged through the discharge port And a lubricating oil separating portion disposed around the discharge port so that the lubricating oil can be separated from the discharge port.

前記潤滑油分離部は、前記吐出口が形成された前記固定スクロールの上面に設置される網状体の潤滑油分離網と、該潤滑油分離網の上部に設置される潤滑油分離板と、を含むことを特徴とする。
前記潤滑油分離網によって分離された潤滑油を収集し得るように前記潤滑油分離網の内部に位置する前記固定スクロールの上面に傾斜面が形成されることを特徴とする。 The lubricating oil separating unit includes a mesh-like lubricating oil separating net installed on an upper surface of the fixed scroll in which the discharge port is formed, and a lubricating oil separating plate installed on the upper part of the lubricating oil separating net. It is characterized by including.
An inclined surface is formed on an upper surface of the fixed scroll located inside the lubricating oil separating net so that the lubricating oil separated by the lubricating oil separating net can be collected.

前記固定スクロールには、前記傾斜面に沿って流れる潤滑油をガイドし得るように潤滑油復帰流路が貫通形成されることを特徴とする。
前記潤滑油復帰流路は、前記上部フレームのスラストベアリングに形成された配油口と相互連通されることを特徴とする。 The fixed scroll is formed with a lubricant return passage so as to guide the lubricant flowing along the inclined surface.
The lubricating oil return flow path is interconnected with an oil distribution port formed in a thrust bearing of the upper frame.

本発明は、冷媒ガスの吸入、圧縮及び吐出の時、冷媒ガスと共に潤滑油が吐出管を通じてケーシングの外部に流出されることを効果的に防止することができ、よって、潤滑油が常にケーシング内部に残るようになるため、各部品の摩耗が減少し、各部品の性能及び圧縮機の圧縮性能が向上するという効果がある。   The present invention can effectively prevent the lubricating oil together with the refrigerant gas from flowing out of the casing through the discharge pipe when sucking, compressing and discharging the refrigerant gas, and therefore the lubricating oil is always kept inside the casing. Therefore, there is an effect that the wear of each part is reduced and the performance of each part and the compression performance of the compressor are improved.

以下、図面に基づいて本発明に係る潤滑油流出防止機能付きのスクロール圧縮機に対して説明する。   Hereinafter, a scroll compressor with a lubricating oil outflow prevention function according to the present invention will be described with reference to the drawings.

図１は、本発明に係る潤滑油流出防止機能付きのスクロール圧縮機の一実施形態の縦断面図であり、図２は、図１の主要部拡大図であり、図示されたように、本発明の一実施形態による潤滑油流出防止機能付きのスクロール圧縮機１００は、内部に収容空間を形成するケーシング１１１と、インボリュート形状のラップ１４４及び圧縮された冷媒ガスが吐出される吐出口１４５を備えて前記ケーシング１１１の内部に配置される固定スクロール１４３と、インボリュート形状のラップ１５４を備えて前記固定スクロール１４３に対して相対旋回運動可能に結合されて冷媒ガスを圧縮する旋回スクロール１５３と、前記ケーシング１１１の吐出口１４５を通じて吐出される冷媒ガスから潤滑油１１８のみを分離し得るように前記吐出口１４５の周辺に配置される潤滑油分離部１６１と、を含んで構成される。   FIG. 1 is a longitudinal sectional view of an embodiment of a scroll compressor with a lubricating oil outflow prevention function according to the present invention, and FIG. 2 is an enlarged view of a main part of FIG. A scroll compressor 100 with a lubricating oil spill prevention function according to an embodiment of the invention includes a casing 111 that forms a housing space therein, an involute wrap 144, and a discharge port 145 through which compressed refrigerant gas is discharged. A fixed scroll 143 disposed inside the casing 111, an orbiting scroll 153 that includes an involute-shaped wrap 154 and is coupled to the fixed scroll 143 so as to be capable of relative rotational movement, and compresses refrigerant gas, and the casing 111 so that only the lubricating oil 118 can be separated from the refrigerant gas discharged through the 111 discharge ports 145. Configured to include a lubricant separator unit 161 which is arranged to the side, a.

前記ケーシング１１１は、内部に密閉収容空間が形成され、該ケーシング１１１には、一方で、冷媒ガスを吸入する吸入管１１３が設置され、前記ケーシング１１１には、他方で、冷媒ガスを吐出する吐出管１１５が設置される。   The casing 111 has a sealed housing space formed therein, and on the one hand, the casing 111 is provided with a suction pipe 113 for sucking refrigerant gas, and on the other hand, the casing 111 is discharged to discharge refrigerant gas. A tube 115 is installed.

前記ケーシング１１１の内部には、冷媒ガスを圧縮する圧縮部１４１及び該圧縮部１４１に駆動力を提供する電動モータ部１３１が備えられ、前記ケーシング１１１の内部の上部及び下部には、前記圧縮部１４１及び電動モータ部１３１を支持し得るように上部フレーム１２１と下部フレーム１３０が設置される。   The casing 111 includes a compression unit 141 that compresses the refrigerant gas and an electric motor unit 131 that provides driving force to the compression unit 141. The upper frame 121 and the lower frame 130 are installed to support the 141 and the electric motor unit 131.

前記電動モータ部１３１は、前記ケーシング１１１の内部に配置される固定子１３３と、該固定子１３３の内部に回転軸１３６を中心に回転される回転子１３５と、から構成される。   The electric motor unit 131 includes a stator 133 disposed inside the casing 111 and a rotor 135 rotated around a rotation shaft 136 inside the stator 133.

前記回転軸１３６の上段には、旋回スクロール１５３を偏心駆動させ得るように偏心部１３７が形成され、前記回転軸１３６の内部には、前記ケーシング１１１の下部に収容された潤滑油１１８を前記圧縮部１４１側に移送し得るように潤滑油移送路１３８が形成される。前記回転軸１３６の下部には、回転軸の回転時、潤滑油１１８を前記圧縮部１４１方向に移送させることができる潤滑油移送部１３９が備えられている。   An eccentric part 137 is formed in the upper stage of the rotating shaft 136 so that the orbiting scroll 153 can be driven eccentrically, and the lubricating oil 118 accommodated in the lower part of the casing 111 is compressed inside the rotating shaft 136. A lubricating oil transfer path 138 is formed so as to be transferred to the portion 141 side. A lower portion of the rotating shaft 136 is provided with a lubricating oil transfer unit 139 that can transfer the lubricating oil 118 in the direction of the compressing unit 141 when the rotating shaft rotates.

前記圧縮部１４１は、インボリュート形状のラップ１４４を備えて上部フレーム１２１の上側に結合される固定スクロール１４３と、インボリュート形状のラップ１５４を備えて前記固定スクロール１４３と結合されて冷媒ガスの圧縮空間を形成すると共に、前記固定スクロール１４３に対して偏心運動し得るように偏心部１３７に結合される旋回スクロール１５３と、を備える。   The compression unit 141 includes an involute-shaped wrap 144 and a fixed scroll 143 coupled to the upper side of the upper frame 121, and an involute-shaped wrap 154 coupled to the fixed scroll 143 to provide a refrigerant gas compression space. And a turning scroll 153 coupled to the eccentric portion 137 so as to be eccentric with respect to the fixed scroll 143.

前記旋回スクロール１５３は、前記上部フレーム１２１に対して相対旋回運動可能に設置され、該旋回スクロール１５３の下部は、前記上部フレーム１２１のスラストベアリング１２３に接触している。   The orbiting scroll 153 is installed so as to be capable of relative orbiting with respect to the upper frame 121, and a lower portion of the orbiting scroll 153 is in contact with a thrust bearing 123 of the upper frame 121.

前記スラストベアリング１２３の一方側には、前記潤滑油移送路１３８に沿って上向き流動された潤滑油１１８を排出し得るように水平方向に配油口１２５が形成される。
前記固定スクロール１４３、上部フレーム１２１、及び、固定子１３３と前記ケーシング１１１との間には、潤滑油復帰流路１２７が形成され、前記配油口１２５は、前記潤滑油復帰流路１２７と連通されている。 An oil distribution port 125 is formed on one side of the thrust bearing 123 in the horizontal direction so that the lubricating oil 118 that has flowed upward along the lubricating oil transfer path 138 can be discharged.
A lubricating oil return channel 127 is formed between the fixed scroll 143, the upper frame 121, the stator 133 and the casing 111, and the oil distribution port 125 communicates with the lubricant return channel 127. Has been.

また、前記固定スクロール１４３の中央の上部には、圧縮された冷媒ガスが吐出できるように吐出口１４５が形成され、該吐出口１４５の周辺には、冷媒ガスと共に吐出される潤滑油１１８を分離し得るように潤滑油分離部１６１が備えられる。   A discharge port 145 is formed at the upper center of the fixed scroll 143 so that compressed refrigerant gas can be discharged, and the lubricating oil 118 discharged together with the refrigerant gas is separated around the discharge port 145. A lubricating oil separation unit 161 is provided so as to be able to.

前記潤滑油分離部１６１は、板状部材から形成され、冷媒ガスの吐出方向に沿って吐出口１４５から所定距離離隔して配置される潤滑油分離板１６３と、所定のメッシュ(Mesh)の網状体として円筒形状を有する潤滑油分離網１６５と、から構成される。ここで、前記潤滑油分離網１６５のメッシュ(Mesh)の大きさは、潤滑油は通過できずに、冷媒ガスのみが通過できる程度の大きさが良い。   The lubricating oil separation part 161 is formed of a plate-like member, and is arranged with a predetermined distance from the discharge port 145 along the refrigerant gas discharge direction, and a predetermined mesh (Mesh) mesh shape. And a lubricating oil separation net 165 having a cylindrical shape as a body. Here, the size of the mesh of the lubricating oil separation net 165 is good enough to allow only the refrigerant gas to pass through without passing through the lubricating oil.

前記固定スクロール１４３の上面には、前記潤滑油分離部１６１によって冷媒ガスから分離された潤滑油１１８を収集し得るように傾斜面１４７が形成される。従って、前記潤滑油分離部１６１によって収集された潤滑油１１８は、傾斜面１４７に沿って潤滑油復帰流路１４９、１２７を経て潤滑油保存部１１７に移送される。   An inclined surface 147 is formed on the upper surface of the fixed scroll 143 so that the lubricating oil 118 separated from the refrigerant gas by the lubricating oil separation unit 161 can be collected. Accordingly, the lubricating oil 118 collected by the lubricating oil separation unit 161 is transferred along the inclined surface 147 to the lubricating oil storage unit 117 via the lubricating oil return channels 149 and 127.

このように構成された本発明の一実施形態による潤滑油流出防止機能を有する圧縮機１００において、電動モータ部１３１に電源が印加されて回転子１３５が回転すると、前記旋回スクロール１５３は、前記固定スクロール１４３に対して偏心運動をするようになり、前記吸入管１１３を通じて吸入された冷媒ガスは、固定スクロール１５３の中央に移動しながら圧縮された後、吐出口１４５を通じて吐出され、該吐出された冷媒ガスは、吐出管１１５を通じてケーシング１１１の外部に吐出される。該吐出された冷媒ガスは、潤滑油分離網１６５を経ながら潤滑油分離部１６１の内部に収集され、収集された潤滑油１１８は、傾斜面１４７を流れながら潤滑油復帰流路１４９、１２７に沿って潤滑油保存部１１７に移送される。   In the compressor 100 having the lubricating oil outflow prevention function according to the embodiment of the present invention configured as described above, when the power is applied to the electric motor unit 131 and the rotor 135 is rotated, the orbiting scroll 153 is fixed. The refrigerant gas that has eccentrically moved with respect to the scroll 143 is compressed through the suction pipe 113 while moving to the center of the fixed scroll 153, and is then discharged through the discharge port 145. The refrigerant gas is discharged to the outside of the casing 111 through the discharge pipe 115. The discharged refrigerant gas is collected in the lubricating oil separation unit 161 through the lubricating oil separation network 165, and the collected lubricating oil 118 flows into the lubricating oil return flow paths 149 and 127 while flowing through the inclined surface 147. Along with this, it is transferred to the lubricating oil storage unit 117.

これと同時に、潤滑油１１８が分離されたガス状態の冷媒ガスは、潤滑油分離網１６５を経て(通過して)吐出管１１５を通じてケーシング１１１の外部に吐出されて冷凍サイクルに従って循環する。   At the same time, the refrigerant gas in a gas state from which the lubricating oil 118 has been separated is discharged (passed) through the lubricating oil separation network 165 to the outside of the casing 111 through the discharge pipe 115 and circulates according to the refrigeration cycle.

一方、図３は、本発明に係る潤滑油流出防止機能付きのスクロール圧縮機の他の実施形態を示した断面図であり、図示されたように、本発明の他の実施形態による潤滑油流出防止機能付きのスクロール圧縮機２００は、内部に収容空間を形成するケーシング２１１と、インボリュート形状のラップ２４４及び圧縮された流体が吐出される吐出口２４５を備えて前記ケーシング２１１の内部に配置される固定スクロール２４３と、インボリュート形状のラップ２５４を備えて固定スクロール２４３に対して相対運動可能に結合される旋回スクロール２５３と、前記吐出口２４５を通して吐出される冷媒ガスから潤滑油２１８のみを分離し得るように吐出口２４５の周辺に配置される潤滑油分離部２６１と、を含んで構成される。   Meanwhile, FIG. 3 is a cross-sectional view illustrating another embodiment of the scroll compressor with a function of preventing the outflow of lubricating oil according to the present invention, and as illustrated, the outflow of lubricating oil according to another embodiment of the present invention. The scroll compressor 200 with a prevention function includes a casing 211 that forms a housing space therein, an involute wrap 244, and a discharge port 245 through which compressed fluid is discharged, and is disposed inside the casing 211. Only the lubricating oil 218 can be separated from the fixed scroll 243, the orbiting scroll 253 provided with an involute wrap 254 and coupled to the fixed scroll 243 so as to be capable of relative movement, and the refrigerant gas discharged through the discharge port 245. And a lubricating oil separation part 261 disposed around the discharge port 245 as described above.

前記固定スクロール２４３の中央の上部には、圧縮された冷媒ガスが吐出できるように吐出口２４５が形成され、該吐出口２４５の周辺には、冷媒ガスと共に吐出される潤滑油２１８を分離し得るように潤滑油分離部２６１が形成される。   A discharge port 245 is formed at the upper center of the fixed scroll 243 so that compressed refrigerant gas can be discharged, and the lubricating oil 218 discharged together with the refrigerant gas can be separated around the discharge port 245. Thus, the lubricating oil separation part 261 is formed.

前記潤滑油分離部２６１は、冷媒ガスの吐出方向に吐出口２４５から所定距離離隔して配置される潤滑油分離板２６３と、所定のメッシュの網状体構造からなり、筒形状を有する潤滑油分離網２６５と、前記潤滑油分離板２６３の外郭に配置される冷媒ガスガイド部材２７３と、を備える。該冷媒ガスガイド部材２７３は、中央が開放され、下段は、固定スクロール２４３の上面に固定されている。   The lubricating oil separating unit 261 includes a lubricating oil separating plate 263 disposed at a predetermined distance from the discharge port 245 in the refrigerant gas discharging direction, and a mesh structure having a predetermined mesh, and has a cylindrical shape. A net 265 and a refrigerant gas guide member 273 disposed outside the lubricating oil separation plate 263. The refrigerant gas guide member 273 is open at the center, and the lower stage is fixed to the upper surface of the fixed scroll 243.

前記スラストベアリング２２３の一方側には、潤滑油移送路２３８に沿って上向き流動された潤滑油２１８を排出し得るように水平方向に配油口２２５が形成される。
前記固定スクロール２４３、上部フレーム２２１、及び、固定子２３３と前記ケーシング２１１との間には、潤滑油復帰流路２２７が形成され、前記配油口２２５は、潤滑油復帰流路２２７と連通されている。 An oil distribution port 225 is formed on one side of the thrust bearing 223 in the horizontal direction so that the lubricating oil 218 that has flowed upward along the lubricating oil transfer path 238 can be discharged.
A lubricating oil return channel 227 is formed between the fixed scroll 243, the upper frame 221, the stator 233 and the casing 211, and the oil distribution port 225 communicates with the lubricant return channel 227. ing.

前記固定スクロール２４３の上面には、潤滑油分離部２６１によって冷媒ガスから分離された潤滑油２１８を収集し得るように傾斜面２４７が形成される。従って、前記潤滑油分離部２６１によって収集された潤滑油２１８は、傾斜面２４７に沿って潤滑油復帰流路２４９、２２７を経て潤滑油保存部２１７に移送される。   An inclined surface 247 is formed on the upper surface of the fixed scroll 243 so as to collect the lubricating oil 218 separated from the refrigerant gas by the lubricating oil separator 261. Accordingly, the lubricating oil 218 collected by the lubricating oil separation unit 261 is transferred along the inclined surface 247 to the lubricating oil storage unit 217 via the lubricating oil return channels 249 and 227.

上部フレーム２２１と潤滑油保存部２１７との間には、前記潤滑油復帰流路２２７に沿って前記潤滑油保存部２１７側に移送される潤滑油２１８が冷媒ガスと混合されないように、前記潤滑油２１８を潤滑油保存部２１７に案内する潤滑油ガイド２７５が設置される。   Between the upper frame 221 and the lubricating oil storage part 217, the lubricating oil 218 transferred to the lubricating oil storage part 217 side along the lubricating oil return flow path 227 is prevented from being mixed with the refrigerant gas. A lubricant guide 275 for guiding the oil 218 to the lubricant storage unit 217 is installed.

このように構成された本発明の他の実施形態による潤滑油流出防止機能を有する圧縮機２００において、電動モータ部２３１に電源が印加されて回転子２３５が回転すると、旋回スクロール２５３は、固定スクロール２４３に対して旋回しながら冷媒ガスを圧縮し、該圧縮された冷媒ガスは吐出口２４５を通じて吐出され、該吐出された冷媒ガスは、吐出管２１５を通じてケーシング２１１の外部に吐出される。   In the compressor 200 having the lubricating oil leakage prevention function according to another embodiment of the present invention configured as described above, when the power is applied to the electric motor unit 231 and the rotor 235 rotates, the orbiting scroll 253 is fixed. The refrigerant gas is compressed while turning with respect to the H.243, the compressed refrigerant gas is discharged through the discharge port 245, and the discharged refrigerant gas is discharged outside the casing 211 through the discharge pipe 215.

該吐出された冷媒ガスは、潤滑油分離網２６５を経ながら潤滑油分離部２６１の内部に収集され、収集された潤滑油２１８は、傾斜面２４７を流れながら潤滑油復帰流路２２７に流入され、このように流入された潤滑油２１８は、潤滑油ガイド２７５によってガイドされて潤滑油保存部２１７に移送される。   The discharged refrigerant gas is collected in the lubricating oil separation unit 261 through the lubricating oil separation net 265, and the collected lubricating oil 218 flows into the lubricating oil return flow path 227 while flowing through the inclined surface 247. The lubricating oil 218 thus introduced is guided by the lubricating oil guide 275 and transferred to the lubricating oil storage unit 217.

これと同時に、潤滑油分離部２６１によって潤滑油２１８が分離されたガス状態の冷媒ガスは、潤滑油分離網２６５を経て冷媒ガスガイド部材２７３によってガイドされながら吐出管２１５を通じてケーシング２１１の外部に吐出されて、冷凍サイクルに従って循環される。   At the same time, the refrigerant gas in a gas state from which the lubricating oil 218 is separated by the lubricating oil separation unit 261 is discharged to the outside of the casing 211 through the discharge pipe 215 while being guided by the refrigerant gas guide member 273 through the lubricating oil separation net 265. And circulated according to the refrigeration cycle.

本発明に係る潤滑油流出防止機能付きのスクロール圧縮機の一実施形態の縦断面図である。It is a longitudinal cross-sectional view of one Embodiment of the scroll compressor with a lubricating oil outflow prevention function which concerns on this invention. 図１の主要拡大図である。FIG. 2 is a main enlarged view of FIG. 1. 本発明に係る潤滑油流出防止機能付きのスクロール圧縮機の他の実施形態の縦断面図である。It is a longitudinal cross-sectional view of other embodiment of the scroll compressor with a lubricating oil outflow prevention function based on this invention. 従来のスクロール圧縮機の縦断面図である。It is a longitudinal cross-sectional view of the conventional scroll compressor.

符号の説明Explanation of symbols

１１１ ケーシング
１２３ スラストベアリング
１２５ 配油口
１２７、１４９ 潤滑油復帰流路
１３６ 回転軸
１３７ 偏心部
１４３ 固定スクロール
１４７ 潤滑油収集部
１５３ 旋回スクロール
１６１ 潤滑油分離部
１６３ 潤滑油分離板
１６５ 潤滑油分離網 111 Casing 123 Thrust bearing 125 Oil distribution port 127, 149 Lubricating oil return flow path 136 Rotating shaft 137 Eccentric part 143 Fixed scroll 147 Lubricating oil collecting part 153 Orbiting scroll 161 Lubricating oil separating part 163 Lubricating oil separating plate 165 Lubricating oil separating net

Claims (11)

内部に収容空間を形成するケーシングと、
インボリュート形状のラップ及び圧縮された冷媒ガスが吐出される吐出口を備えて前記ケーシングの内部に配置される固定スクロールと、
インボリュート形状のラップを備えて前記固定スクロールに対して相対旋回運動可能に結合される旋回スクロールと、
前記吐出口を通じて吐出される冷媒ガスから潤滑油を分離し得るように前記吐出口の周辺に配置される潤滑油分離部と、
を含んで構成されることを特徴とする潤滑油流出防止機能付きのスクロール圧縮機。 A casing forming an accommodating space inside,
A fixed scroll disposed inside the casing with an involute wrap and a discharge port through which compressed refrigerant gas is discharged;
An orbiting scroll having an involute wrap and coupled to the fixed scroll so as to be capable of relative orbiting movement;
A lubricating oil separator disposed around the discharge port so that the lubricant can be separated from the refrigerant gas discharged through the discharge port;
A scroll compressor with a lubricating oil outflow prevention function, characterized by comprising 前記潤滑油分離部は、前記吐出口が形成された前記固定スクロールの上面に設置される網状体の潤滑油分離網と、
該潤滑油分離網の上部に設置される潤滑油分離板と、を含んで構成されることを特徴とする請求項１に記載の潤滑油流出防止機能付きのスクロール圧縮機。 The lubricating oil separating portion is a mesh-like lubricating oil separating net installed on the upper surface of the fixed scroll where the discharge port is formed,
The scroll compressor with a lubricating oil outflow prevention function according to claim 1, comprising a lubricating oil separating plate installed at an upper portion of the lubricating oil separating net. 前記潤滑油分離部は、メッシュ構造からなり、前記吐出口を囲むように配置される潤滑油分離網を含むことを特徴とする請求項１に記載の潤滑油流出防止機能付きのスクロール圧縮機。   2. The scroll compressor with a lubricating oil outflow prevention function according to claim 1, wherein the lubricating oil separating unit includes a lubricating oil separating net having a mesh structure and disposed so as to surround the discharge port. 前記潤滑油分離網によって分離された潤滑油を収集し得るように前記潤滑油分離網の内部に位置する前記固定スクロールの上面に傾斜面が形成されることを特徴とする請求項２に記載の潤滑油流出防止機能付きのスクロール圧縮機。   The inclined surface according to claim 2, wherein an inclined surface is formed on an upper surface of the fixed scroll located inside the lubricating oil separation net so as to collect the lubricating oil separated by the lubricating oil separation net. Scroll compressor with lubricating oil spill prevention function. 前記固定スクロールには、前記傾斜面に沿って流れる潤滑油をガイドし得るように潤滑油復帰流路が貫通形成されることを特徴とする請求項４に記載の潤滑油流出防止機能付きのスクロール圧縮機。   The scroll with a lubricating oil outflow prevention function according to claim 4, wherein a lubricating oil return flow path is formed through the fixed scroll so as to guide the lubricating oil flowing along the inclined surface. Compressor. 前記潤滑油復帰流路は、前記上部フレームのスラストベアリングに形成された配油口と相互連通されることを特徴とする請求項５に記載の潤滑油流出防止機能付きのスクロール圧縮機。   6. The scroll compressor with a lubricating oil outflow prevention function according to claim 5, wherein the lubricating oil return flow path is interconnected with an oil distribution port formed in a thrust bearing of the upper frame. 固定スクロールの上面に設置される潤滑油分離網と、
前記潤滑油分離網の上部に設置される潤滑油分離板と、
前記潤滑油分離板の外郭に離隔して設置される冷媒ガスガイド部材と、
を含むことを特徴とする潤滑油流出防止機能付きのスクロール圧縮機。 A lubricating oil separation net installed on the upper surface of the fixed scroll;
A lubricating oil separation plate installed on top of the lubricating oil separation network;
A refrigerant gas guide member installed separately from the outer shell of the lubricating oil separation plate;
A scroll compressor with a lubricating oil spill prevention function. 前記潤滑油分離網によって分離された潤滑油を収集し得るように前記潤滑油分離網の内部に位置する前記固定スクロールの上面に傾斜面が形成されることを特徴とする請求項７に記載の潤滑油流出防止機能付きのスクロール圧縮機。   The inclined surface according to claim 7, wherein an inclined surface is formed on an upper surface of the fixed scroll located inside the lubricating oil separation net so as to collect the lubricating oil separated by the lubricating oil separation net. Scroll compressor with lubricating oil spill prevention function. 前記固定スクロールには前記傾斜面に沿って流れる潤滑油をガイドし得るように潤滑油復帰流路が貫通形成されることを特徴とする請求項８に記載の潤滑油流出防止機能付きのスクロール圧縮機。   The scroll compression with a lubricating oil outflow prevention function according to claim 8, wherein a lubricating oil return flow path is formed through the fixed scroll so as to guide the lubricating oil flowing along the inclined surface. Machine. 前記潤滑油復帰流路は、前記上部フレームのスラストベアリングに形成された配油口と相互連通されることを特徴とする請求項９に記載の潤滑油流出防止機能付きのスクロール圧縮機。   The scroll compressor with a lubricating oil outflow prevention function according to claim 9, wherein the lubricating oil return flow path is interconnected with an oil distribution port formed in a thrust bearing of the upper frame. 前記潤滑油復帰流路から流入される潤滑油を前記ケーシングの下部に案内し得るように前記上部フレームの下側に潤滑油ガイドが設置されることを特徴とする請求項１０に記載の潤滑油流出防止機能付きのスクロール圧縮機。   11. The lubricating oil according to claim 10, wherein a lubricating oil guide is installed on the lower side of the upper frame so that the lubricating oil flowing in from the lubricating oil return flow path can be guided to the lower part of the casing. A scroll compressor with an outflow prevention function.
JP2005264044A 2004-09-13 2005-09-12 Scroll compressor with lubricating oil leakage prevention function Expired - Fee Related JP4943680B2 (en)

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