JPS61171890A - Oil return device of enclosure type compressor - Google Patents
Oil return device of enclosure type compressorInfo
- Publication number
- JPS61171890A JPS61171890A JP1403485A JP1403485A JPS61171890A JP S61171890 A JPS61171890 A JP S61171890A JP 1403485 A JP1403485 A JP 1403485A JP 1403485 A JP1403485 A JP 1403485A JP S61171890 A JPS61171890 A JP S61171890A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- oil return
- return pipe
- pipe
- opening
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- 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 この発明は密閉型圧縮機の油戻装置の改良に関する。[Detailed description of the invention] (b) Industrial application fields This invention relates to an improvement in an oil return device for a hermetic compressor.
（ロ）従来の技術
従来の密閉型圧縮機は実開昭５９−９１８５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３図において、（１）は密
閉容器で、この容器内には上部に電動機部（２）が、下
部に回転圧縮部（３）が夫々収納されている。電動機部
（２）は密閉容器（１）の内壁に取付けられたステータ
（４）と、このステータの内部にエアギャップ（５）を
有して配置されたロータ（６）とで構成されている。（
７）は密閉容器（１）の内面とステータ（４）の外周面
との間に軸方向に形成された隙間で、この隙間はステー
タ（４）の外周をカットすることにより形成されている
。（８）は隙間（７）に挿入されたパイプで、このパイ
プは上端をステータ（４）の上面と略同−高さで電動機
部（２）の上部空間（９）に、下端を密閉容器（１）の
底部に形成した油溜部（１０のオイル中に夫々開口させ
ている。αＤは回転圧縮部（３）の吐出口で、この吐出
口は電動機部（２）と回転圧縮部（３）との間の空間α
３に開口している。α謙は密閉容器（１）の土壁に取付
けた吐出管である。(B) Prior Art A conventional hermetic compressor is constructed as shown in Japanese Utility Model Application No. 59-9185. Here, a conventional example will be explained with reference to this publication. In FIG. 3, reference numeral (1) denotes a closed container, in which an electric motor section (2) is housed in the upper part and a rotary compression part (3) is housed in the lower part. The electric motor section (2) is composed of a stator (4) attached to the inner wall of the airtight container (1) and a rotor (6) arranged with an air gap (5) inside the stator. . (
7) is a gap formed in the axial direction between the inner surface of the closed container (1) and the outer circumferential surface of the stator (4), and this gap is formed by cutting the outer circumference of the stator (4). (8) is a pipe inserted into the gap (7), and the upper end of this pipe is approximately the same height as the upper surface of the stator (4), and the lower end is in the upper space (9) of the electric motor part (2), and the lower end is in the airtight container. The oil sump (10) formed at the bottom of the oil reservoir (10) is opened into the oil respectively. αD is the discharge port of the rotary compression section (3), and this discharge port is connected to the motor section (2) and the rotary compression section (10). 3) Space α between
It opens at 3. α-ken is a discharge pipe attached to the earthen wall of the closed container (1).
この構造の密閉型圧縮機では電動機部（２）の上部空間
（９）でガス冷媒から分離されたオイルをステータ（４
）の上面に溜め、ガス冷媒の流れないパイプ（８）でこ
のステータの上面のオイルを油溜部住〔に戻している。In a hermetic compressor with this structure, the oil separated from the gas refrigerant in the upper space (9) of the electric motor part (2) is transferred to the stator (4).
), and the oil on the top surface of the stator is returned to the oil reservoir through a pipe (8) through which gas refrigerant does not flow.
（ハ）発明が解決しようとする問題点
しかしながら、パイプ（８）は隙間（ηに挿入して上部
空間（９）と油溜部ａ〔のオイル中とに開口しており、
このオイル中の開口Ｋかかる圧力が上部空間（９）の開
口部かかる圧力よりも大きいため、ステータ（４）の上
面に溜ったオイルが油溜部（Ｉｔ）Ｉｃ戻らなかったり
、あるいは、パイプ（８）の囲うの隙間（７）を下方か
ら吹き上がるガス冷媒流のため、このパイプの上端開口
部流入しようとするオイルが吹きとばされ、油溜部（１
１に戻りにくくなったりする等の問題がありだ。(c) Problems to be solved by the invention However, the pipe (8) is inserted into the gap (η) and opens into the upper space (9) and into the oil in the oil sump a.
Since the pressure applied to the opening K in this oil is greater than the pressure applied to the opening in the upper space (9), the oil accumulated on the upper surface of the stator (4) may not return to the oil sump (It) Ic or the pipe ( Due to the flow of gas refrigerant blowing up from below through the gap (7) surrounding the pipe (8), the oil that is about to flow into the upper end opening of this pipe is blown away,
There are problems such as it becoming difficult to return to 1.
この発明は上記の問題を解決するために、電動機部の上
方に設けた油分離器で分離されたオイルを強制的に密閉
容器内の底部に回収することを目的としたものである。In order to solve the above-mentioned problem, this invention aims to forcibly collect oil separated by an oil separator provided above an electric motor section to the bottom of a closed container.
に）問題点を解決するための手段
この発明は油分離器の底部にオイル戻しパイプを設け、
このオイル戻しパイプの一端をオイル中に開口し、この
開口を回転軸に設けた給油孔の流入口の近傍に位置させ
たものである。2) Means for solving the problem This invention provides an oil return pipe at the bottom of the oil separator,
One end of this oil return pipe is opened into oil, and this opening is located near the inlet of an oil supply hole provided in the rotating shaft.
（ホ）作用
この発明は油分離器の底部にオイル戻しパイプを設け、
このオイル戻しパイプの一端開口なオイル中の回転軸の
流入口に近接させることにより、回転軸の流入口に流れ
込むオイル流れによってオ離されたオイル圧力差により
密閉容器内の底部に八
戻すようにしたものである。(E) Function This invention provides an oil return pipe at the bottom of the oil separator,
By placing the oil return pipe close to the inlet of the rotating shaft with one end open, the oil flowing into the inlet of the rotating shaft returns the oil to the bottom of the sealed container due to the pressure difference. This is what I did.
（へ）実施例
以下この発明を第１図及び第２図に示す実施例に基づい
て説明する。(F) EXAMPLE The present invention will be explained below based on the example shown in FIGS. 1 and 2.
底部にオイルが貯溜された油溜部ａ１を有する密閉容器
内（１）には上部に電動機部（２）が、下部に回転圧縮
部（３）が夫々収納されている。電動機部（２）はステ
ータ（４）とロータ（６）とで構成され、このステータ
とロータとの間にはエアギャップ（５）が形成されてい
る。隙間（７）はステータ（４）の外周を軸方向にカッ
會トすることにより、このステータの外周面
と密閉容器（１）の内面との間に形成されている。回転
圧縮部（３）の吐出口αυはこの回転圧縮部と電動機部
（２）との間の空間ａｚに開口している。Ｉは油分離器
で、この油分離器は密閉容器（１）の上壁に取付けた吐
出管０の開口を囲むように、この容器の内壁に取付けら
れている。油分離器ａ４は円筒状のフィルタ霞と、この
フィルタの底部に取付けられた底板（ＩＩとにより構成
されている。この底板は中央部を高く、外周部を低くし
て傘状に形成されている。（１７）は底板αｅの外周部
に取付けられたオイル戻しパイプで、このパイプはステ
ータ（４）Ｋ穿設した貫通孔（１８を通って一端開口部
α優が油溜部員のオイル中に開口するようにしている。In a closed container (1) having an oil reservoir a1 at the bottom, an electric motor section (2) is housed in the upper part, and a rotary compression part (3) is housed in the lower part. The electric motor section (2) is composed of a stator (4) and a rotor (6), and an air gap (5) is formed between the stator and the rotor. A gap (7) is formed between the outer circumferential surface of the stator (4) and the inner surface of the closed container (1) by cutting the outer circumference of the stator (4) in the axial direction. The discharge port αυ of the rotary compressor (3) opens into the space az between the rotary compressor and the electric motor portion (2). I denotes an oil separator, and this oil separator is attached to the inner wall of the closed container (1) so as to surround the opening of the discharge pipe 0 attached to the upper wall of the container. The oil separator A4 is composed of a cylindrical filter haze and a bottom plate (II) attached to the bottom of the filter. (17) is an oil return pipe attached to the outer periphery of the bottom plate αe, and this pipe passes through the through hole (18) drilled in the stator (4) K, and the opening α at one end returns to the oil of the oil sump member. I'm trying to open it up.
オイル戻しパイプαηの下部はオイル中で５字状に折曲
げられ、回転軸（至）の下端の近傍に開口部（１９を位
置させている。回転軸（１）の下端にはこの回転軸の中
央に穿設された給油孔Ｑυの流入口器が設けられている
。The lower part of the oil return pipe αη is bent into a 5-shape in oil, and an opening (19) is located near the lower end of the rotating shaft (1). An inlet device for an oil supply hole Qυ is provided in the center of the tank.
このように構成された密閉型圧縮機の油戻装置において
、回転圧縮部（３）で圧縮されたガス冷媒は吐出口αυ
がら空間α２に吐出され、電動機部（２）のエアギャッ
プ（５）とステータ（４）の外周の隙間（７）とを流れ
て上部空間（９）に流出する。この上部空間に流出した
ガス冷媒は油分離器α荀のフィルタα９を通過するとき
にオイルを分離し、吐出管α騰から密閉容器（１）外に
吐出される。このフィルタで分離されたオイルは自重に
より底板αＩＫ落下し、傘状に形成されて中央部よりも
低くなっている底板傾の外周部に集められる。この外周
部に集められたオイルは底板αｅの外周部罠取付けられ
たオイル戻しパイプ値η内を通りて密閉容器（１）内の
油溜部員に戻される。In the oil return device for the hermetic compressor configured in this way, the gas refrigerant compressed in the rotary compression section (3) is discharged through the discharge port αυ
The air is discharged into the space α2, flows through the air gap (5) of the electric motor section (2) and the gap (7) on the outer periphery of the stator (4), and flows out into the upper space (9). The gas refrigerant flowing into the upper space separates oil when passing through the filter α9 of the oil separator α, and is discharged from the discharge pipe α to the outside of the closed container (1). The oil separated by this filter falls down on the bottom plate αIK due to its own weight, and is collected on the outer circumference of the bottom plate, which is formed into an umbrella shape and is lower than the center portion. The oil collected on the outer periphery passes through the oil return pipe η attached to the outer periphery of the bottom plate αe and is returned to the oil sump member in the closed container (1).
このとき、油分離器α荀を設けた上部空間（９）はガス
冷媒が電動機部（２）のエアギャップ（５）と隙間（力
とを通るときに圧力降下し、空間α２よりも圧力が低く
なっている。しかしながら、オイル中ＫｙＲ口したオイ
ル戻しパイプαηの開口部翰は回転軸（イ）の流入口＠
に近接しており、この流入口から給油孔Ｑυに吸込まれ
るオイル流により、負圧にさせられるため、底板αｅＫ
溜ったオイルがオイル戻しパイプα力内を通って油溜部
ａ〔に戻るのである。At this time, when the gas refrigerant passes through the air gap (5) of the electric motor part (2) and the gap (force), the pressure in the upper space (9) where the oil separator α is installed decreases, and the pressure is lower than that in the space α2. However, the opening of the oil return pipe αη that entered KyR in the oil is the inlet of the rotating shaft (A).
The oil flow sucked into the oil supply hole Qυ from this inlet creates a negative pressure, so
The accumulated oil passes through the oil return pipe α and returns to the oil sump a.
尚、上記説明においてはステータ（４）に穿設した貫通
孔ａ８にオイル戻しパイプａηを挿入し、このパイプを
密閉容器（１）内に配置させるように説明したが、オイ
ル戻しパイプを密閉容器外に位置させてもよく、この場
合にはステータ（４）にこのパイプ挿入用の孔等を穿設
する必要がなく、モータ特性の低下を防止できる。In the above explanation, the oil return pipe aη is inserted into the through hole a8 drilled in the stator (4), and this pipe is placed inside the closed container (1). It may be located outside. In this case, there is no need to drill holes in the stator (4) for inserting this pipe, and deterioration of motor characteristics can be prevented.
（ト）発明の効果
この発明の密閉型圧縮機の油戻装置は油分離器の底部に
オイル戻しパイプを設け、このオイル戻しパイプの一端
をオイル中に開口し、この開口を回転軸に設けた給油孔
の流入口の近傍に位置させ、この回転軸のポンプ作用に
よるオイル流れでオイル戻しパイプの開口な負圧にする
のであるから、油分離器で分離されたオイルを密閉容器
内の底部に強制的に回収しやすくなり、オイル不足によ
る焼付きや、オイル吐出による冷凍能力の低下等を防止
できる。(G) Effects of the Invention The oil return device for a hermetic compressor of this invention is provided with an oil return pipe at the bottom of the oil separator, one end of the oil return pipe is opened into the oil, and this opening is provided on the rotating shaft. It is located near the inlet of the oil supply hole, and the oil flow caused by the pump action of this rotating shaft creates a negative pressure at the opening of the oil return pipe. This makes it easier to forcibly collect the oil, and prevents seizures due to lack of oil and decreases in refrigeration capacity due to oil discharge.
第１図及び第２図はこの発明を示し、第１図は回転圧縮
機の縦断面図、第２図は本願装置の要部拡大図、第３図
は従来の回転圧縮機の縦断面図である。
（１）・・・密閉容器、 （２）・・・電動機部、 （
３）・・・回転圧縮部、 α、り・・油分離器、 αη
・・・オイル戻しパイプ、（イ）・・・回転軸、 Ｃ２
１）・・・給油孔、 ＠・・・流入口。
出願人 三洋電機株式会社 外１名
代理人 弁理士 佐 野 静 夫
第１図1 and 2 show the present invention, FIG. 1 is a longitudinal sectional view of a rotary compressor, FIG. 2 is an enlarged view of the main parts of the device of the present invention, and FIG. 3 is a longitudinal sectional view of a conventional rotary compressor. It is. (1)...Airtight container, (2)...Electric motor section, (
3)... Rotating compression section, α, Ri... Oil separator, αη
...Oil return pipe, (A) ... Rotating shaft, C2
1)...Oil supply hole, @...Inlet. Applicant Sanyo Electric Co., Ltd. and one other agent Patent attorney Shizuo Sano Figure 1
Claims (1)
て連結された電動機部を上部に、圧縮部を下部に夫々配
置し、この電動機部の上方に油分離器を備えた密閉型圧
縮機において、前記油分離器の底部にオイル戻しパイプ
を設け、このオイル戻しパイプの一端をオイル中に開口
し、この開口を回転軸に設けた給油孔の流入口の近傍に
位置させたことを特徴とする密閉型圧縮機の油戻装置。1. In a hermetic compressor with an oil separator above the electric motor, the electric motor connected by a rotating shaft is placed in the upper part and the compression part is located in the lower part in a closed container with oil stored at the bottom. , an oil return pipe is provided at the bottom of the oil separator, one end of the oil return pipe is opened into the oil, and this opening is located near the inlet of an oil supply hole provided in the rotating shaft. Oil return device for hermetic compressors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1403485A JPS61171890A (en) | 1985-01-28 | 1985-01-28 | Oil return device of enclosure type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1403485A JPS61171890A (en) | 1985-01-28 | 1985-01-28 | Oil return device of enclosure type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61171890A true JPS61171890A (en) | 1986-08-02 |
Family
ID=11849855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1403485A Pending JPS61171890A (en) | 1985-01-28 | 1985-01-28 | Oil return device of enclosure type compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61171890A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000077401A1 (en) * | 1999-06-14 | 2000-12-21 | Matsushita Refrigeration Company | Motor-driven hermetic compressor |
| KR100864754B1 (en) * | 2005-11-28 | 2008-10-22 | 엘지전자 주식회사 | Oil feeding structure for scroll compressor |
| CN103867448A (en) * | 2012-12-13 | 2014-06-18 | 上海日立电器有限公司 | Oil return structure for rolling rotor type compressor |
| WO2020161965A1 (en) * | 2019-02-07 | 2020-08-13 | 東芝キヤリア株式会社 | Rotary compressor, method for manufacturing rotary compressor, and refrigeration cycle device |
-
1985
- 1985-01-28 JP JP1403485A patent/JPS61171890A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000077401A1 (en) * | 1999-06-14 | 2000-12-21 | Matsushita Refrigeration Company | Motor-driven hermetic compressor |
| KR100864754B1 (en) * | 2005-11-28 | 2008-10-22 | 엘지전자 주식회사 | Oil feeding structure for scroll compressor |
| CN103867448A (en) * | 2012-12-13 | 2014-06-18 | 上海日立电器有限公司 | Oil return structure for rolling rotor type compressor |
| WO2020161965A1 (en) * | 2019-02-07 | 2020-08-13 | 東芝キヤリア株式会社 | Rotary compressor, method for manufacturing rotary compressor, and refrigeration cycle device |
| CN113396285A (en) * | 2019-02-07 | 2021-09-14 | 东芝开利株式会社 | Rotary compressor, method for manufacturing rotary compressor, and refrigeration cycle device |
| JPWO2020161965A1 (en) * | 2019-02-07 | 2021-10-14 | 東芝キヤリア株式会社 | Rotary compressor, manufacturing method of rotary compressor and refrigeration cycle equipment |
| CN113396285B (en) * | 2019-02-07 | 2023-02-17 | 东芝开利株式会社 | Rotary compressor, method for manufacturing rotary compressor, and refrigeration cycle device |
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