JP3399577B2 - Hermetic electric compressor - Google Patents
Hermetic electric compressorInfo
- Publication number
- JP3399577B2 JP3399577B2 JP08455893A JP8455893A JP3399577B2 JP 3399577 B2 JP3399577 B2 JP 3399577B2 JP 08455893 A JP08455893 A JP 08455893A JP 8455893 A JP8455893 A JP 8455893A JP 3399577 B2 JP3399577 B2 JP 3399577B2
- Authority
- JP
- Japan
- Prior art keywords
- suction pipe
- lubricating oil
- opening
- compression element
- cylinder
- 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.)
- Expired - Fee Related
Links
Landscapes
- Compressor (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は冷凍冷蔵装置等に使用さ
れる密閉型圧縮機に関し、特に給油機構に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor used in a refrigerating machine or the like, and more particularly to an oil supply mechanism.
【０００２】[0002]
【従来の技術】従来の密閉型圧縮機における圧縮要素の
シリンダー内への給油方法としては、特開昭５２−２６
００６号公報に示されるオイル溝や、オイルキャピラリ
ーが知られている。以下、図面を参照しながら、上述し
た従来の給油方法の一例について説明する。BACKGROUND ART is a refueling how into the cylinder of the compression element in a conventional hermetic compressor, JP 52-26
An oil groove and an oil capillary shown in Japanese Patent Laid-Open No. 006 are known. Hereinafter, an example of the above-described conventional oil supply method will be described with reference to the drawings.
【０００３】従来の構成を図８、図９に示す。A conventional configuration is shown in FIGS. 8 and 9.
【０００４】図８は、従来の密閉型圧縮機の縦断面図で
ある。図９は、同従来例のＣ−Ｃ線における要部断面図
である。FIG. 8 is a vertical sectional view of a conventional hermetic compressor. FIG. 9 is a sectional view of a principal part taken along the line CC of the conventional example.
【０００５】図８、図９において、２は密閉容器、６は
密閉容器２内に弾性支持された圧縮要素、７は圧縮要素
６の上部に配置された電動要素である。２０は吸入マフ
ラー、１７はシリンダーヘッド、２４は連通管で、吸込
マフラー２０はシリンダーヘッド１７にスプリング座金
２５を連通管２４を圧入して固定されている。２６は挿
入管で吸込マフラー２０内に挿入されている。２７は吸
入孔、１０はシリンダーである。In FIGS. 8 and 9 , 2 is a closed container, 6 is a compression element elastically supported in the closed container 2, and 7 is an electric element arranged above the compression element 6. Reference numeral 20 is a suction muffler, 17 is a cylinder head, and 24 is a communication pipe. The suction muffler 20 is fixed by pressing a spring washer 25 and a communication pipe 24 into the cylinder head 17. Reference numeral 26 is an insertion tube which is inserted into the suction muffler 20. 27 is a suction hole, and 10 is a cylinder.
【０００６】２８は一端２８ａが圧縮要素６に連結し、
他端２８ｂは密閉容器２底部に滞留する潤滑油２１に浸
漬しているオイルキャピラリーである 。28 has one end 28a connected to the compression element 6,
The other end 28b is an oil capillary immersed in the lubricating oil 21 staying at the bottom of the closed container 2.
【０００７】以上のように構成された圧縮機について、
以下その動作を説明する。まず、電動要素７によって、
駆動される圧縮要素６には外部冷却回路（図示せず）か
ら挿入管２６を介し吸入マフラー２０内へ冷媒ガスが吸
い込まれる。その後、この冷媒ガスは連通管２４を通
り、シリンダーヘッド１７内へ吸い込まれ、吸入孔２７
を通りシリンダー１０へ導かれる。この吸入行程におい
て冷媒ガスが流れることにより、密閉容器２内の圧力よ
りもシリンダー１０やシリンダーヘッド１７等の圧縮要
素６内の圧力（静圧）が低下し、この圧力差により密閉
容器２底部の潤滑油を圧縮要素６に供給している。Regarding the compressor configured as described above,
The operation will be described below. First, by the electric element 7,
Refrigerant gas is sucked into the suction muffler 20 from the external cooling circuit (not shown) to the driven compression element 6 through the insertion pipe 26. Then, this refrigerant gas is sucked into the cylinder head 17 through the communication pipe 24, and the suction hole 27
It is led to the cylinder 10 through. Since the refrigerant gas flows in this suction stroke, the pressure (static pressure) in the compression element 6 such as the cylinder 10 and the cylinder head 17 is lower than the pressure in the closed container 2, and due to this pressure difference, Lubricating oil is supplied to the compression element 6.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、運転される圧力条件によって給油量が変動
する。このため、圧力差が小さいときには給油量が少な
く、効率の低下や油切れによる焼き付きが発生するとい
う問題点があった。また、圧力差が大きいときには給油
量が多くなり、潤滑油過多により過圧縮が発生するとい
う問題点があった。However, in the above-mentioned conventional configuration, the amount of oil supply varies depending on the operating pressure condition. For this reason, when the pressure difference is small, there is a problem that the amount of oil supply is small and the efficiency decreases and seizure due to oil shortage occurs. Further, when the pressure difference is large, there is a problem that the amount of oil supply increases and excessive compression occurs due to excessive lubricating oil.
【０００９】本発明は従来の課題を解決するもので、運
転される圧力条件に依存せず常に適正な給油を行い、給
油量不足による効率の低下や信頼性の低下、また給油量
過多による過圧縮を防止することを目的とする。The present invention solves the problems of the prior art, and always performs proper lubrication regardless of the operating pressure conditions, and reduces efficiency and reliability due to insufficient lubrication and excessive lubrication due to excessive lubrication. The purpose is to prevent compression.
【００１０】[0010]
【課題を解決するための手段】この目的を達成するため
本発明の密閉型圧縮機は、圧縮要素に設けた潤滑油溜め
と、一端が圧縮要素に連結し、他端の開口部近傍が圧縮
要素と接触または近接している吸入管とから構成されて
いる。To achieve this object, a hermetic compressor of the present invention is provided with a lubricating oil sump provided in a compression element.
And a suction pipe whose one end is connected to the compression element, and the vicinity of the opening at the other end is in contact with or close to the compression element.
【００１１】また、開口部が斜めに切断され、開口部端
面が重力方向と反対方向に開口した構成になっている。The opening is cut obliquely, and the end face of the opening is opened in the direction opposite to the direction of gravity.
【００１２】また、吸入管の開口部近傍に小孔を備えた
構成になっている。Further, it has a structure in which a small hole is provided near the opening of the suction pipe.
【００１３】[0013]
【作用】本発明の密閉型圧縮機は上記した構成によっ
て、吸入管の開口部近傍が圧縮要素と接触または近接し
ていることによって、吸入管開口部近傍に密閉容器内を
飛散している潤滑油を滞留させることができるため、適
量の潤滑油を吸入管から供給でき、吸入過多による過圧
縮を防止できる。The hermetic compressor of the present invention has the above structure.
Te, by the vicinity of the opening of the intake pipe is in contact or close proximity with the compression element, since it is possible to dwell the lubricating oil is scattered the closed container in the vicinity suction pipe opening, an appropriate amount of lubricating oil It can be supplied from the suction pipe and can prevent overcompression due to excessive suction.
【００１４】また、吸入管開口部が斜めに切断され、開
口部端面が重力方向と反対方向に開口しているため、吸
入管と圧縮要素との間に滞留した潤滑油がその自重によ
り吸入管内に確実に吸い込まれる。Further, since the suction pipe opening is obliquely cut and the end face of the opening is opened in the direction opposite to the direction of gravity, the lubricating oil accumulated between the suction pipe and the compression element is sucked into the suction pipe by its own weight. Is surely sucked in.
【００１５】また、圧縮要素と接触または近接している
吸入管の開口部近傍に小孔を設けることで、吸入管中を
冷媒が逆流した時でも冷媒は開口部に向かって流れるた
め、小孔近傍に滞留した潤滑油を吹きとばすことを防止
でき、小孔から吸入管内に潤滑油が確実に吸い込まれ
る。Further, by providing a small hole in the vicinity of the opening of the suction pipe which is in contact with or close to the compression element, the refrigerant flows toward the opening even when the refrigerant flows backward in the suction pipe. It is possible to prevent the lubricating oil accumulated in the vicinity from being blown out, and the lubricating oil is surely sucked into the suction pipe through the small hole.
【００１６】[0016]
【実施例】以下、本発明の第１の実施例について図面を
参照しながら説明する。尚、従来と同一構成について
は、同一符号を付して詳細な説明を省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. It should be noted that the same components as those of the related art are denoted by the same reference numerals and detailed description thereof will be omitted.
【００１７】図１は、本発明の第１の実施例による密閉
型圧縮機の縦断面図である。図２は、同実施例の圧縮要
素部の上面図である。図３は、図２のＢ−Ｂ線における
断面図である。 FIG. 1 is a vertical sectional view of a hermetic compressor according to a first embodiment of the present invention. FIG. 2 is a top view of the compression element portion of the embodiment. FIG. 3 is taken along line BB of FIG.
FIG.
【００１８】図１、図２、図３において、６は圧縮要素
であり、ブロック９と一体に設けられたシリンダー１
０、ピストン１１、クランク軸１２、コンロッド１３、
ベアリング１４等により構成されている。１８は吸入管
であり、一端１８ｂは圧縮要素に連結され、他端の開口
部近傍１８ａは圧縮要素６のシリンダーヘッド１７に近
接している。 In FIGS. 1, 2 and 3, reference numeral 6 is a compression element.
And the cylinder 1 provided integrally with the block 9.
0, piston 11, crankshaft 12, connecting rod 13,
The bearing 14 and the like are used. 18 is a suction pipe
And one end 18b is connected to the compression element and the other end has an opening
The portion 18a is close to the cylinder head 17 of the compression element 6.
Touching.
【００１９】以上のように構成された密閉型圧縮機につ
いて以下その動作を説明する。クランク軸１２は、一端
１２ａを密閉容器２底部に貯留する潤滑油２１に浸漬
し、電動要素７によって駆動されることでクランク軸１
２内に設けた給油機構（図示せず）により、おもにクラ
ンク軸１２とベアリング１４の摺動部１２ｃに給油を行
う。その後、潤滑油２１はクランク軸１２から密閉容器
２内に放出され、密閉容器２内の空間には潤滑油２１が
飛散する。 The hermetic compressor constructed as described above
The operation will be described below. Crankshaft 12 has one end
Immerse 12a in lubricating oil 21 stored in the bottom of the closed container 2
The crankshaft 1 by being driven by the electric element 7.
The lubrication mechanism (not shown) provided in 2 mainly
The sliding shaft 12 and the sliding portion 12c of the bearing 14 are lubricated.
U After that, the lubricating oil 21 is transferred from the crankshaft 12 to the closed container.
The lubricating oil 21 is discharged into the space inside the closed container 2
Scatter.
【００２０】密閉容器２内を飛散している潤滑油２１は
圧縮要素６に付着する。従って、シリンダーヘッド１
７、吸入管１８にも潤滑油２１が付着し、シリンダーヘ
ッド１７と吸入管１８との間の隙間に潤滑油２１が溜ま
る。このシリンダーヘッド１７と吸入管１８との隙間に
溜まった潤滑油２１は、吸入管１８内に流れ込む冷媒ガ
スの流れに巻き込まれて、吸入管１８の開口部１８ａか
ら吸入管１８内に吸い込まれ、シリンダー１０へと導か
れて給油を行う。 The lubricating oil 21 scattered in the closed container 2
Attach to the compression element 6. Therefore, the cylinder head 1
7. Lubricating oil 21 adheres to the suction pipe 18 and
Lubricant oil 21 collects in the gap between the lid 17 and the suction pipe 18.
It In the gap between the cylinder head 17 and the suction pipe 18,
The accumulated lubricating oil 21 flows into the suction pipe 18 as a refrigerant gas.
Is caught in the flow of gas, and is it the opening 18a of the suction pipe 18?
Is sucked into the suction pipe 18 and guided to the cylinder 10.
To refuel.
【００２１】このシリンダーヘッド１７と吸入管１８の
隙間に溜まる潤滑油２１の量はシリンダー１０への給油
量として大すぎる程溜まる事はない。従って、シリンダ
ー１０への給油量は運転圧力条件に影響を受けず一定量
にできる上に、過多の潤滑 油が吸入管１８を介してシリ
ンダー１０内に供給されることを防止でき、過圧縮を防
止する事ができる。 The cylinder head 17 and the suction pipe 18
The amount of the lubricating oil 21 accumulated in the gap is the amount of oil supplied to the cylinder 10.
If the amount is too large, it will not accumulate. Therefore, the cylinder
The amount of oil supplied to -10 is constant regardless of operating pressure conditions.
In addition, it is possible to prevent excess lubricating oil from passing through the suction pipe 18
Can be prevented from being supplied to the inside of the cylinder 10 to prevent over compression.
You can stop.
【００２２】以上のように本実施例の密閉型圧縮機は、
一端が圧縮要素６に連結し、他端の吸入管開口部１８ａ
近傍が圧縮要素６と接触または近接している吸入管１８
とから構成されているので、運転圧力条件に影響されず
に常に一定量の潤滑油２１をシリンダー１０へ給油する
事ができると共に、過多の潤滑油が吸入管からシリンダ
ー１０へ供給されることを防止でき、過圧縮を防止する
事ができる。 As described above, the hermetic compressor of this embodiment is
One end is connected to the compression element 6 and the other end is a suction pipe opening 18a
Suction pipe 18 whose vicinity is in contact with or close to the compression element 6
Since it is composed of and, it is not affected by operating pressure conditions.
A constant amount of lubricating oil 21 is constantly supplied to the cylinder 10.
Can be done, and excess lubricating oil can be transferred from the suction pipe to the cylinder.
-10 can be prevented from being supplied and over compression can be prevented.
I can do things.
【００２３】尚、本実施例では吸入管開口部をシリンダ
ーヘッドに近接して配置しているがブロック等の他の圧
縮要素の構成部品に接触または近接して配置しても良い
事は言うまでもない。 In this embodiment, the suction pipe opening is provided in the cylinder.
-Although it is placed close to the head, other pressure such as blocks
May be placed in contact with or in close proximity to the components of the shrink element
Not to mention the matter.
【００２４】次に、本発明の第２の実施例について図面
を参照しながら説明する。尚、第１の実施例と同一構成
については、同一符号を付して詳細な説明を省略する。 Next, a second embodiment of the present invention will be described with reference to the drawings.
Will be described with reference to. The same configuration as that of the first embodiment
2 are assigned the same reference numerals and detailed description thereof will be omitted.
【００２５】図４は、本発明の第２の実施例における密
閉型圧縮機の縦断面図である。図５は、同実施例におけ
る圧縮要素部の上面図である。 FIG . 4 is a block diagram of the second embodiment of the present invention.
It is a longitudinal section of a closed type compressor. FIG. 5 shows the same embodiment.
FIG. 3 is a top view of a compression element portion according to the present invention.
【００２６】図４，図５において、２２は吸入管であ
り、吸入管２２の開口部の端面２２ａは斜めに切断さ
れ、開口部端面２２ａが重力方向と反対方向に開口した
構成になっている。以上のように構成された密閉型圧縮
機について以下その動作を説明する。第２の実施例と同
様に、シリンダーヘッド１７と吸入管２２との隙間に潤
滑油２１が溜まる。吸入管２２の開口部端面２２ａが重
力方向と反対方向に開口しているため、シリンダーヘッ
ド１７と吸入管２２との隙間に溜まった潤滑油２１は、
自重により吸入管２２内に確実に流れ込み、吸入管２２
内に流れ込む冷媒ガスの流れに巻き込まれて、吸入管２
２から、シリンダー１０へと導かれて給油を行う。 In FIGS. 4 and 5, reference numeral 22 is a suction pipe.
The end face 22a of the opening of the suction pipe 22 is cut diagonally.
The end face 22a of the opening is opened in the direction opposite to the gravity direction.
It is configured. Hermetic compression configured as above
The operation of the machine will be described below. Same as the second embodiment
The gap between the cylinder head 17 and the suction pipe 22
The lubricating oil 21 collects. The opening end surface 22a of the suction pipe 22 is heavy.
Since it opens in the direction opposite to the force direction, the cylinder head
The lubricating oil 21 accumulated in the gap between the suction port 17 and the suction pipe 22 is
The weight of the suction pipe 22 surely flows into the suction pipe 22 due to its own weight.
The suction pipe 2 is caught in the flow of the refrigerant gas flowing into the inside.
The fuel is introduced from 2 to the cylinder 10.
【００２７】従って、シリンダー１０への給油量は運転
圧力条件に影響を受けず一定量にできる上に、過多の潤
滑油が吸入管２２を介してシリンダー１０内に供給さ
れ、過圧縮を引き起こすことを防止する事ができ、さら
に確実に給油が行うことができるため給油量不足による
効率の低下や信頼性の低下を防止する事ができる。 Therefore, the amount of oil supply to the cylinder 10 is
In addition to being able to maintain a constant amount without being affected by pressure conditions, excessive moisture
The lubricating oil is supplied into the cylinder 10 through the suction pipe 22.
It is possible to prevent over compression,
Can be reliably refueled, so
It is possible to prevent a decrease in efficiency and a decrease in reliability.
【００２８】以上のように本実施例の密閉型圧縮機は、
開口部端面２２ａが斜めで、且つ重力方向と反対方向に
開口した吸入管２２から構成されるので、シリンダー１
０への給油量は運転圧力条件に影響を受けず一定量にで
きる上に、過多の潤滑油が吸入管２２からシリンダー１
０へ供給され、過圧縮を引き起こすことを防止する事が
でき、さらに、滞留した潤滑油を確実に吸入管内に吸い
込むことができるため、給油量不足による効率の低下や
信頼性の低下を防止できる。 As described above, the hermetic compressor of this embodiment is
The end face 22a of the opening is slanted, and in the direction opposite to the gravity direction.
Cylinder 1 because it consists of open suction pipe 22
The amount of oil supplied to 0 is constant regardless of the operating pressure conditions.
In addition, excess lubricating oil can be drawn from the suction pipe 22 into the cylinder 1
To prevent it from being over-compressed.
In addition, the accumulated lubricating oil can be reliably sucked into the suction pipe.
Can reduce the efficiency due to lack of refueling amount.
It is possible to prevent a decrease in reliability.
【００２９】次に、本発明の第３の実施例について図面
を参照しながら説明する。尚、第１の実施例と同一構成
については、同一符号を付して詳細な説明を省略する。 Next, a third embodiment of the present invention will be described with reference to the drawings.
Will be described with reference to. The same configuration as that of the first embodiment
2 are assigned the same reference numerals and detailed description thereof will be omitted.
【００３０】図６は、本発明の第３の実施例における密
閉型圧縮機の縦断面図である。図７は、同実施例の吸入
管要部断面図である。 FIG . 6 is a block diagram of the third embodiment of the present invention.
It is a longitudinal section of a closed type compressor. FIG. 7 shows the inhalation of the same embodiment.
It is a tube principal part sectional view.
【００３１】図６，図７において、２３は吸入管であ
り、２３ａは吸入管２３の開口部２３ｂ近傍に設けられ
た小孔である。 In FIGS. 6 and 7, 23 is a suction pipe.
23a is provided near the opening 23b of the suction pipe 23.
It is a small hole.
【００３２】以上のように構成された密閉型圧縮機につ
いて以下その動作を説明する。第１の実施例と同様に、
シリンダーヘッド１７と吸入管２３との隙間には潤滑油
２１が溜まる。潤滑油２１は吸入管２３内に流れ込む冷
媒ガスの流れに巻き込まれて、吸入管２３の開口部２３
ｂ近傍の小孔２３ａから吸入管２３内に流れ込み、シリ
ンダー１０へと導かれて給油を行う。 The hermetic compressor constructed as described above
The operation will be described below. Similar to the first embodiment,
Lubricating oil is provided in the gap between the cylinder head 17 and the suction pipe 23.
21 is accumulated. The lubricating oil 21 cools down into the suction pipe 23.
The opening 23 of the suction pipe 23 is caught in the flow of the medium gas.
It flows from the small hole 23a near b into the suction pipe 23,
And is refueled.
【００３３】また、圧縮機の吸入行程等において吸入管
２３内で冷媒ガスの逆流が発生し、開口部２３ｂ近傍の
潤滑油を吹き飛ばすことがある。しかしながら、逆流す
る冷 媒ガスは小孔２３ａより流れ抵抗が小さい吸入管開
口部２３ｂに向かって流れるため、小孔２３ａ近傍に滞
留した潤滑油が吹き飛ばされることがない。そのため小
孔２３ａ近傍に滞留した潤滑油２１を常に吸入管２３を
介してシリンダー１０へ供給することができる。 In addition, in the suction stroke of the compressor, etc.
A backflow of the refrigerant gas is generated in 23, and the vicinity of the opening 23b is generated.
May blow off lubricating oil. However, backflow
That refrigerant gas flow resistance is smaller suction pipe opening than the small holes 23a
Since it flows toward the mouth 23b, it stays near the small hole 23a.
The retained lubricating oil is not blown off. Therefore small
The lubricating oil 21 accumulated in the vicinity of the hole 23a is always supplied to the suction pipe 23.
It can be supplied to the cylinder 10 via.
【００３４】従って、運転される圧力条件に影響されず
に常に一定量の潤滑油をシリンダー１０内へ供給する事
ができる上に、過多の潤滑油が吸入管２３を介してシリ
ンダー１０内に供給され、過圧縮を引き起こすことを防
止する事ができる。さらに、小孔２３ａ近傍に滞留した
潤滑油２１により、吸入行程において冷媒ガスが逆流し
ても、常に給油を行うことができるため、確実に給油が
行われ、給油量不足による効率の低下や信頼性の低下を
防止する事ができる。 Therefore, it is not affected by the operating pressure conditions.
To always supply a constant amount of lubricating oil into the cylinder 10.
In addition, it is possible to prevent excess lubricating oil from flowing through the suction pipe 23.
To prevent over compression.
You can stop. Furthermore, it stayed near the small holes 23a.
The lubricating oil 21 causes the refrigerant gas to flow backward during the suction stroke.
However, you can always refuel, so you can reliably refuel.
Is performed, reducing efficiency and reliability due to insufficient oil supply.
It can be prevented.
【００３５】以上のように本実施例の密閉型圧縮機は、
吸入管２３の開口部２３ｂ近傍に小孔２３ｂを備えた吸
入管２３から構成されるので、運転圧力条件に影響を受
けずにシリンダー１０への給油を行う事ができると共
に、過多の潤滑油が吸入管２３からシリンダー１０へ供
給されることを防止でき、過圧縮を防止する事ができ
る。さらに、吸入行程において冷媒ガスが逆流しても、
小孔２３ａ近傍に滞留した潤滑油が吹き飛ばされること
がないので、滞留した潤滑油を確実に小孔２３ａを介し
て吸入管２３内に吸い込むことができる。 As described above, the hermetic compressor of this embodiment is
The suction pipe 23 is provided with a small hole 23b near the opening 23b.
As it consists of the inlet pipe 23, it is affected by operating pressure conditions.
It is possible to refuel the cylinder 10 without fail.
The excess lubricating oil is supplied to the cylinder 10 from the suction pipe 23.
Can be prevented from being fed and can prevent over compression
It Furthermore, even if the refrigerant gas flows backward in the suction stroke,
The lubricating oil staying near the small holes 23a is blown off
Since there is no such thing, the accumulated lubricating oil can be reliably passed through the small hole 23a.
Can be sucked into the suction pipe 23.
【００３６】なお、本実施例では、吸入管２３に小孔２
３ａを設けたが、小孔２３ａの代わりに、吸入管２３に
溝や網状の部分を設けても良い事は言うまでもない。 In this embodiment, the small hole 2 is formed in the suction pipe 23.
3a is provided, but instead of the small hole 23a, the suction pipe 23 is provided.
It goes without saying that grooves or net-like portions may be provided.
【００３７】[0037]
【発明の効果】【The invention's effect】
以上説明したように本発明は、一端が圧As described above, according to the present invention, one end is compressed.
縮要素に連結し、他端の開口部近傍が圧縮要素と接触まIt is connected to the compression element, and the vicinity of the opening at the other end comes into contact with the compression element.
たは近接している吸入管から構成されているので、過多Since it is composed of inhalation pipes that are close to each other,
の潤滑油が吸入管からシリンダーへ供給されることを防Prevents lubricating oil from being supplied to the cylinder from the suction pipe.
止でき、過圧縮を防止する事ができる。It can be stopped and can prevent over-compression.
【００３８】また、開口部端面が斜めで、且つ重力方向
と反対方向に開口した吸入管から構成されるので、圧縮
要素に付着し、吸入管近傍に滞留した潤滑油を確実に吸
い込むことができ、確実に給油を行えるため給油量不足
による効率の低下や信頼性の低下を防止できる。 Further, the end face of the opening is oblique and the direction of gravity is
Since it is composed of a suction pipe that opens in the opposite direction,
Be sure to absorb the lubricating oil that adheres to the elements and stays near the suction pipe.
Insufficient amount of oil because it can be pushed in and can be surely refueled
It is possible to prevent a decrease in efficiency and a decrease in reliability due to.
【００３９】また、吸入管内を冷媒ガスが逆流した時で
も、小孔近傍には常に潤滑油を滞留させることができ吸
入管を介して常にシリンダー内へ給油を行うことができ
る。 When the refrigerant gas flows backward through the suction pipe,
However, the lubricating oil can always stay near the small holes and
Oil can always be fed into the cylinder through the inlet pipe.
It
【図１】本発明の第１の実施例を示す密閉型圧縮機の横
断面図FIG. 1 is a cross-sectional view of a hermetic compressor showing a first embodiment of the present invention.
【図２】同実施例の圧縮要素部を示す上面図FIG. 2 is a top view showing a compression element portion of the embodiment.
【図３】図２のＢ−Ｂ線における断面図3 is a sectional view taken along line BB of FIG.
【図４】本発明の第２の実施例を示す密閉型圧縮機の縦
断面図FIG. 4 is a vertical sectional view of a hermetic compressor showing a second embodiment of the present invention.
【図５】同実施例の圧縮要素部を示す上面図FIG. 5 is a top view showing a compression element portion of the embodiment.
【図６】本発明の第３の実施例を示す密閉型圧縮機の縦
断面図FIG. 6 is a vertical sectional view of a hermetic compressor showing a third embodiment of the present invention.
【図７】本発明の第３の実施例を示す吸入管要部断面図FIG. 7 is a sectional view of a main part of an intake pipe showing a third embodiment of the present invention.
【図８】従来の密閉型圧縮機の縦断面図FIG. 8 is a vertical sectional view of a conventional hermetic compressor.
【図９】同従来例のＣ−Ｃ線における要部断面図FIG. 9 is a sectional view of an essential part taken along line CC of the conventional example.
２ 密閉容器 ５ 電動圧縮要素 ６ 圧縮要素 ７ 電動要素 １８ 吸入管 １８ａ 吸入管開口部 ２２ 吸入管 ２２ａ 吸入管の開口部端面 ２３ 吸入管 ２３ａ 小孔 ２３ｂ 吸入管開口部 2 closed container 5 Electric compression element 6 compression elements 7 Electric elements 18 Inhalation tube 18a Inhalation pipe opening 22 Inhalation tube 22a End face of opening of suction pipe 23 Inhalation tube 23a small hole 23b Intake tube opening
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−247190（ＪＰ，Ａ) 特開 昭52−26006（ＪＰ，Ａ) 特開 昭62−247189（ＪＰ，Ａ) 実開 昭51−83811（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F04B 39/02 F04B 39/12 101 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-247190 (JP, A) JP-A-52-26006 (JP, A) JP-A-62-247189 (JP, A) Actual development Sho-51- 83811 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) F04B 39/02 F04B 39/12 101
Claims (3)
圧縮要素（６）と電動要素（７）により構成される電動
圧縮要素（５）と、一端が前記圧縮要素に連結し、他端
の開口部（１８ａ）近傍が前記圧縮要素と接触または近
接し、前記圧縮要素との隙間に溜まった潤滑油（２１）
を吸入する吸入管（１８）とを備えた密閉型圧縮機。And 1. A sealed container (2), an electric compressor element (5) constituted by stored in a sealed container compression element (6) and the electric element (7), one end is connected to said compression element, other end
Near or near the opening (18a) of the compression element.
Lubricating oil (21) contacting and accumulating in the gap with the compression element
A hermetic compressor provided with a suction pipe (18) for sucking air.
（２２ａ）が重力方向と反対方向に開口している吸入管
（２２）とからなる請求項１記載の密閉型圧縮機。 2. The end face of the opening is cut obliquely.
Suction pipe (22a) opens in the direction opposite to the direction of gravity
(22) from become claim 1 hermetic compressor according.
る吸入管（２３）とからなる請求項１記載の密閉型圧縮
機。 3. A hermetic compressor in the vicinity of the opening portion consisting of a small hole suction pipe is provided with a (23a) (23) according to claim 1, wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08455893A JP3399577B2 (en) | 1993-04-12 | 1993-04-12 | Hermetic electric compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08455893A JP3399577B2 (en) | 1993-04-12 | 1993-04-12 | Hermetic electric compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06294380A JPH06294380A (en) | 1994-10-21 |
| JP3399577B2 true JP3399577B2 (en) | 2003-04-21 |
Family
ID=13833978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08455893A Expired - Fee Related JP3399577B2 (en) | 1993-04-12 | 1993-04-12 | Hermetic electric compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3399577B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011157831A (en) | 2010-01-29 | 2011-08-18 | Sanden Corp | Fluid machinery |
-
1993
- 1993-04-12 JP JP08455893A patent/JP3399577B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06294380A (en) | 1994-10-21 |
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