JP2001099067A - Hermetic compressor - Google Patents

Hermetic compressor

Info

Publication number
JP2001099067A
JP2001099067A JP27880599A JP27880599A JP2001099067A JP 2001099067 A JP2001099067 A JP 2001099067A JP 27880599 A JP27880599 A JP 27880599A JP 27880599 A JP27880599 A JP 27880599A JP 2001099067 A JP2001099067 A JP 2001099067A
Authority
JP
Japan
Prior art keywords
hermetic compressor
end cap
refrigerant
upper opening
rotating shaft
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
Application number
JP27880599A
Other languages
Japanese (ja)
Inventor
Masazumi Sakaniwa
正純 坂庭
Masaru Matsuura
大 松浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP27880599A priority Critical patent/JP2001099067A/en
Publication of JP2001099067A publication Critical patent/JP2001099067A/en
Pending legal-status Critical Current

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  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a hermetic compressor constituted to suppress vibration and noise and to sufficiently separate lubricating oil. SOLUTION: In this hermetic compressor, a motor element with a rotating shaft is enclosed on the upper side in a closed container formed by closing an upper opening of a cylindrical drawing case by jointing an end cap thereto, and a compression element driven by the rotating shaft of the motor element is enclosed on the lower side. A sucked refrigerant is compressed by the compression element and discharged into the closed container, and then discharged from a refrigerant discharge pipe provided at the end cap jointed to the upper opening. In the hermetic compressor of such constitution, step difference between the cylindrical drawing case and a joint part of the end cap jointed to the upper opening is eliminated and made as flat as possible.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は密閉型圧縮機に関す
るものであり、さらに詳しくは上側に回転軸を有する電
動要素と、下側に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た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, and more particularly, to an electric compressor having a rotary shaft on the upper side and a compression element driven by the rotary shaft of the electric element on the lower side. It relates to a closed hermetic compressor.

【0002】[0002]

【従来の技術】従来、図2に示したように、円筒状の絞
りケース1の上部開口をエンドキャップ2を溶接によっ
て接合して密閉した密閉容器4内部の上側に回転軸5を
有する電動要素6と、下側に電動要素6の回転軸5によ
って駆動される圧縮要素7とを収納し、吸入した冷媒を
圧縮要素7により圧縮して密閉容器4内に吐出した後、
上部開口に接合したエンドキャップ2に設けた冷媒吐出
パイプ8から吐出するようにした密閉型圧縮機9があ
る。10は密閉型圧縮機9の底部に収納された潤滑油で
あり、運転時に回転軸5や圧縮要素7の各摺動部に供給
されて密閉型圧縮機9内で循環して使用されるようにな
っている。
2. Description of the Related Art Conventionally, as shown in FIG. 2, an electric element having a rotating shaft 5 on the upper side inside a sealed container 4 in which an upper opening of a cylindrical aperture case 1 is sealed by welding an end cap 2 by welding. 6 and a compression element 7 driven by the rotating shaft 5 of the electric element 6 on the lower side. After the sucked refrigerant is compressed by the compression element 7 and discharged into the closed container 4,
There is a hermetic compressor 9 that discharges from a refrigerant discharge pipe 8 provided in an end cap 2 joined to an upper opening. Reference numeral 10 denotes a lubricating oil stored at the bottom of the hermetic compressor 9, which is supplied to the sliding portions of the rotating shaft 5 and the compression element 7 during operation and is circulated and used in the hermetic compressor 9. It has become.

【0003】従来の密閉型圧縮機9の円筒状の絞りケー
ス1とエンドキャップ2との接合部10には段差がある
ため、矢印で冷媒の流れを示したように上方に移動する
冷媒が段差に当たって流れが乱され、振動や騒音の原因
となるとともに、冷媒の流れが乱されると潤滑油の分離
が不十分となり、潤滑油が冷媒吐出パイプ8から吐出さ
れる冷媒に同伴されて密閉型圧縮機9の外部にでてしま
い、潤滑油不足に起因する摩耗などが発生する問題があ
った。
Since there is a step in the joint 10 between the cylindrical throttle case 1 and the end cap 2 of the conventional hermetic compressor 9, the refrigerant moving upward as indicated by the arrow indicates the flow of the refrigerant. When the flow of the refrigerant is disturbed, vibration and noise are caused, and when the flow of the refrigerant is disturbed, the separation of the lubricating oil becomes insufficient. There is a problem in that it is outside the compressor 9 and wear occurs due to insufficient lubricating oil.

【0004】[0004]

【発明が解決しようとする課題】本発明の目的は、絞り
ケースとエンドキャップとの接合部における冷媒の流れ
を改善し、振動や騒音を抑制するとともに、潤滑油の分
離が十分に行われるようにした信頼性の高い密閉型圧縮
機を提供することである。
SUMMARY OF THE INVENTION An object of the present invention is to improve the flow of the refrigerant at the junction between the throttle case and the end cap, suppress vibration and noise, and sufficiently separate the lubricating oil. To provide a highly reliable hermetic compressor.

【0005】[0005]

【課題を解決するための手段】課題を解決するための本
発明の請求項1の発明は、円筒状の絞りケースの上部開
口をエンドキャップを接合して密閉した密閉容器内部の
上側に回転軸を有する電動要素と、下側に前記電動要素
の回転軸によって駆動される圧縮要素とを収納し、吸入
した冷媒を前記圧縮要素により圧縮して密閉容器内に吐
出した後、前記上部開口に接合したエンドキャップに設
けた冷媒吐出パイプから吐出するようにした密閉型圧縮
機において、前記円筒状の絞りケースと前記上部開口に
接合したエンドキャップの接合部の段差をなくし可及的
平坦にしたことを特徴とする密閉型圧縮機に関するもの
である。
According to a first aspect of the present invention, there is provided a rotary shaft provided on an upper side of a sealed container in which an upper opening of a cylindrical throttle case is sealed by joining an end cap. And a compression element driven by a rotating shaft of the electric element is housed on the lower side, and the sucked refrigerant is compressed by the compression element and discharged into a closed container, and then joined to the upper opening. In the hermetic compressor in which the refrigerant is discharged from the refrigerant discharge pipe provided in the end cap, the stepped portion between the cylindrical throttle case and the end cap bonded to the upper opening is eliminated to make it as flat as possible. The present invention relates to a hermetic compressor characterized by the following.

【0006】本発明の請求項2の発明は、請求項1記載
の密閉型圧縮機において、前記冷媒吐出パイプ内に整流
板を固定して設置したことを特徴とするものである。
According to a second aspect of the present invention, in the hermetic compressor according to the first aspect, a straightening plate is fixedly installed in the refrigerant discharge pipe.

【0007】[0007]

【発明の実施の形態】図1は本発明の密閉型圧縮機の1
例を示す断面図である。図1において、9は密閉型圧縮
機、4は底部に潤滑油10の貯溜されたオイル溜を有す
る密閉容器であり、この容器4内には上側に電動要素6
が、下側にこの電動要素6の回転軸5によって駆動され
る圧縮要素7が収納されている。電動要素6は密閉容器
4の内壁に固着された固定子61と、この固定子61の
内部で回転軸5に挿着された回転子62とで構成されて
いる。
FIG. 1 is a perspective view of a hermetic compressor according to the present invention.
It is sectional drawing which shows an example. In FIG. 1, reference numeral 9 denotes a hermetic compressor, and 4 denotes a hermetic container having an oil reservoir in which a lubricating oil 10 is stored at a bottom portion.
On the lower side, a compression element 7 driven by the rotating shaft 5 of the electric element 6 is accommodated. The electric element 6 includes a stator 61 fixed to the inner wall of the sealed container 4, and a rotor 62 inserted into the rotating shaft 5 inside the stator 61.

【0008】圧縮要素7はシリンダ71と、回転軸5の
偏心部51によりシリンダ71内を回転するローラ72
と、このローラ72に接してシリンダ71内を分けるベ
ーン73と、シリンダ71の開口を封じる上軸受部74
と下軸受部75と、この上軸受部74に取付けられた吐
出弁76と、この吐出弁76を覆うカップマフラー77
とで構成されている。このカップマフラー77の上面に
は吐出口78が設けられている。
The compression element 7 includes a cylinder 71 and a roller 72 that rotates inside the cylinder 71 by an eccentric portion 51 of the rotating shaft 5.
And a vane 73 that contacts the roller 72 to divide the inside of the cylinder 71 and an upper bearing 74 that seals the opening of the cylinder 71.
, A lower bearing 75, a discharge valve 76 attached to the upper bearing 74, and a cup muffler 77 covering the discharge valve 76.
It is composed of A discharge port 78 is provided on the upper surface of the cup muffler 77.

【0009】8は冷媒吐出パイプで、この冷媒吐出パイ
プ8は密閉容器4の上部を密閉しているエンドキャップ
2に貫通して設けられている。3は絞りケース1の底
部、31はこの底部3に接合されたベースである。
Reference numeral 8 denotes a refrigerant discharge pipe. The refrigerant discharge pipe 8 is provided to penetrate the end cap 2 that seals the upper part of the closed container 4. Reference numeral 3 denotes a bottom of the aperture case 1 and 31 denotes a base joined to the bottom 3.

【0010】このように構成された密閉型圧縮機9にお
いて、シリンダ71内に流入した冷媒はローラ72とベ
ーン73との共働により圧縮され、吐出弁76を開放し
てカップマフラー77内に吐出される。このカップマフ
ラー77内の冷媒は吐出口78から電動要素6の図示し
ないエアギャップを通って、この電動要素6の上部に吐
出される。電動要素6の上部に吐出された冷媒は回転子
62の回転により旋回させられ、内部に含まれている質
量の重い潤滑油を旋回による遠心力で密閉容器4の内壁
側に振り飛ばして分離している。潤滑油の分離された冷
媒は冷媒吐出パイプ8から密閉容器4外に吐出される。
そして、分離された潤滑油は固定子61の図示しないオ
イル戻し孔から密閉型圧縮機9の底部3のオイル溜へ戻
される。
In the hermetic compressor 9 configured as above, the refrigerant flowing into the cylinder 71 is compressed by the cooperation of the roller 72 and the vane 73, and opens the discharge valve 76 to discharge into the cup muffler 77. Is done. The refrigerant in the cup muffler 77 is discharged from the discharge port 78 to an upper portion of the electric element 6 through an air gap (not shown) of the electric element 6. The refrigerant discharged to the upper part of the electric element 6 is swirled by the rotation of the rotor 62, and the heavy lubricating oil contained therein is spun off and separated by the centrifugal force of the swirling toward the inner wall side of the sealed container 4. ing. The refrigerant from which the lubricating oil has been separated is discharged from the refrigerant discharge pipe 8 to the outside of the closed container 4.
Then, the separated lubricating oil is returned to the oil reservoir at the bottom 3 of the hermetic compressor 9 from an oil return hole (not shown) of the stator 61.

【0011】密閉型圧縮機9の円筒状の絞りケース1と
エンドキャップ2との接合部10において、エンドキャ
ップ2の先端部は斜めにカットされており、絞りケース
1と溶接して接合した時、段差がなく、内表面が可及的
平坦になるようにしてある。このようにすることによ
り、矢印で冷媒の流れを示したように上方に移動する冷
媒は流れが乱されることなく、スムースに上方に流れ
る。このように、接合部10において冷媒の流れが乱さ
れないので振動や騒音が発生することがなく、潤滑油の
分離も十分となる。したがって潤滑油が冷媒吐出パイプ
8から吐出される冷媒に同伴されて密閉型圧縮機9の外
部にでるのを抑制できる。
In the joint portion 10 between the cylindrical draw case 1 and the end cap 2 of the hermetic compressor 9, the end of the end cap 2 is cut obliquely, and when it is welded to the draw case 1 and joined. There are no steps and the inner surface is made as flat as possible. By doing so, the refrigerant moving upward as shown by the flow of the refrigerant by the arrow smoothly flows upward without disturbing the flow. As described above, since the flow of the refrigerant is not disturbed in the joint portion 10, no vibration or noise is generated, and the separation of the lubricating oil is sufficient. Therefore, it is possible to prevent the lubricating oil from being outside the hermetic compressor 9 accompanying the refrigerant discharged from the refrigerant discharge pipe 8.

【0012】図1に示した例では、絞りケース1の内側
にエンドキャップ2が溶接して接合されている例を示し
たが、絞りケース1の外側にエンドキャップ2が接合さ
れている場合は、接合部10において、絞りケース1の
先端部を同様にして斜めにカットしてエンドキャップ2
と溶接して接合すれば、段差がなくなり、内表面を可及
的平坦にすることができる。
In the example shown in FIG. 1, an example is shown in which the end cap 2 is welded and joined to the inside of the draw case 1, but when the end cap 2 is joined to the outside of the draw case 1, At the joint portion 10, the tip end of the aperture case 1 is cut obliquely in the same manner, and the end cap 2 is cut.
When welding is performed, the step is eliminated, and the inner surface can be made as flat as possible.

【0013】本発明においては、密閉容器4の上部を密
閉しているエンドキャップ2に貫通して設けられている
冷媒吐出パイプ8内に図1に示したような整流板12を
固定して設置することが好ましい。冷媒が冷媒吐出パイ
プ8を経て外部にでる際、この整流板12を通ることに
より流れが整えられ、騒音などの原因となる脈動が抑え
られるとともに、潤滑油の吐出も整流板12により抑え
られる。
In the present invention, a flow straightening plate 12 as shown in FIG. 1 is fixedly installed in a refrigerant discharge pipe 8 penetrating through an end cap 2 which seals an upper portion of a closed vessel 4. Is preferred. When the refrigerant exits through the refrigerant discharge pipe 8, the flow is regulated by passing through the current plate 12, pulsation causing noise and the like is suppressed, and the discharge of the lubricating oil is also suppressed by the current plate 12.

【0014】図1に示した整流板12は、複数の板12
−1とそれにほぼ直交する複数の板12−2を組み合わ
せて冷媒吐出パイプ8内に固定して設置できるようにし
たものを例示したが、勿論整流板12はこの構造に限定
されるものではなく、冷媒の通過を妨げない範囲で種々
の変形態様が可能である。
The current plate 12 shown in FIG.
Although the rectifier plate 12 is not limited to this structure, the rectifier plate 12 is, of course, not limited to this structure. Various modifications are possible as long as the passage of the refrigerant is not hindered.

【0015】[0015]

【発明の効果】本発明の請求項1記載の密閉型圧縮機
は、円筒状の絞りケースと上部開口に接合したエンドキ
ャップの接合部の段差をなくし可及的平坦にしたので、
接合部における冷媒の流れが改善され振動や騒音が抑制
されるとともに、潤滑油の分離が十分に行われる。
According to the hermetic compressor of the first aspect of the present invention, the step of the joint portion between the cylindrical throttle case and the end cap joined to the upper opening is eliminated to make the joint as flat as possible.
The flow of the refrigerant at the joint is improved, vibration and noise are suppressed, and the lubricating oil is sufficiently separated.

【0016】本発明の請求項2記載の密閉圧縮機は、さ
らに冷媒吐出パイプ内に整流板を固定して設置したの
で、冷媒吐出パイプにおける冷媒の流れが改善され振動
や騒音が抑制されるとともに、潤滑油の吐出も整流板に
より抑えられる。
In the hermetic compressor according to the second aspect of the present invention, since a flow straightening plate is fixedly installed in the refrigerant discharge pipe, the flow of the refrigerant in the refrigerant discharge pipe is improved, and vibration and noise are suppressed. Also, the discharge of the lubricating oil is suppressed by the rectifying plate.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の密閉圧縮機の1例を示す断面図であ
る。
FIG. 1 is a sectional view showing an example of a hermetic compressor of the present invention.

【図2】従来の密閉圧縮機の断面図である。FIG. 2 is a sectional view of a conventional hermetic compressor.

【符号の説明】[Explanation of symbols]

1 絞りケース 2 エンドキャップ 3 底部 4 密閉容器 5 回転軸 6 電動要素 7 圧縮要素 8 冷媒吐出パイプ 9 密閉型圧縮機 10 潤滑油 11 接合部 12 整流板 REFERENCE SIGNS LIST 1 throttle case 2 end cap 3 bottom 4 sealed container 5 rotary shaft 6 electric element 7 compression element 8 refrigerant discharge pipe 9 hermetic compressor 10 lubricating oil 11 joint 12 rectifying plate

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 3H003 AA05 AB04 AC03 BA05 BH05 CD06 CE02 3H029 AA04 AA13 AA21 AB03 BB04 BB21 BB31 BB35 CC09 CC25 CC44  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3H003 AA05 AB04 AC03 BA05 BH05 CD06 CE02 3H029 AA04 AA13 AA21 AB03 BB04 BB21 BB31 BB35 CC09 CC25 CC44

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 円筒状の絞りケースの上部開口をエンド
キャップを接合して密閉した密閉容器内部の上側に回転
軸を有する電動要素と、下側に前記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、吸入した冷媒を
前記圧縮要素により圧縮して密閉容器内に吐出した後、
前記上部開口に接合したエンドキャップに設けた冷媒吐
出パイプから吐出するようにした密閉型圧縮機におい
て、前記円筒状の絞りケースと前記上部開口に接合した
エンドキャップの接合部の段差をなくし可及的平坦にし
たことを特徴とする密閉型圧縮機。
1. A motorized element having a rotating shaft on the upper side inside a closed container in which an upper opening of a cylindrical aperture case is sealed by joining an end cap, and a compression driven on a lower side by the rotating shaft of the motorized element. After storing the element and compressing the sucked refrigerant by the compression element and discharging it into the closed container,
In the hermetic compressor configured to discharge from a refrigerant discharge pipe provided in an end cap joined to the upper opening, it is possible to eliminate a step between a joint portion of the cylindrical throttle case and an end cap joined to the upper opening. A hermetic compressor characterized by flattening.
【請求項2】 前記冷媒吐出パイプ内に整流板を固定し
て設置したことを特徴とする請求項1記載の密閉型圧縮
機。
2. The hermetic compressor according to claim 1, wherein a current plate is fixedly installed in said refrigerant discharge pipe.
JP27880599A 1999-09-30 1999-09-30 Hermetic compressor Pending JP2001099067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27880599A JP2001099067A (en) 1999-09-30 1999-09-30 Hermetic compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27880599A JP2001099067A (en) 1999-09-30 1999-09-30 Hermetic compressor

Publications (1)

Publication Number Publication Date
JP2001099067A true JP2001099067A (en) 2001-04-10

Family

ID=17602427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27880599A Pending JP2001099067A (en) 1999-09-30 1999-09-30 Hermetic compressor

Country Status (1)

Country Link
JP (1) JP2001099067A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1312405C (en) * 2002-12-25 2007-04-25 乐金电子(天津)电器有限公司 Vibration absorber of closed compressor liquid storage tank
KR100795956B1 (en) * 2006-08-25 2008-01-21 엘지전자 주식회사 Overheating prevention apparatus for scroll compressor
CN101865114A (en) * 2009-04-17 2010-10-20 乐金电子(天津)电器有限公司 Exhaust pipe structure of compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1312405C (en) * 2002-12-25 2007-04-25 乐金电子(天津)电器有限公司 Vibration absorber of closed compressor liquid storage tank
KR100795956B1 (en) * 2006-08-25 2008-01-21 엘지전자 주식회사 Overheating prevention apparatus for scroll compressor
CN101865114A (en) * 2009-04-17 2010-10-20 乐金电子(天津)电器有限公司 Exhaust pipe structure of compressor

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