JPH07189947A - Scroll compressor - Google Patents

Scroll compressor

Info

Publication number
JPH07189947A
JPH07189947A JP5333397A JP33339793A JPH07189947A JP H07189947 A JPH07189947 A JP H07189947A JP 5333397 A JP5333397 A JP 5333397A JP 33339793 A JP33339793 A JP 33339793A JP H07189947 A JPH07189947 A JP H07189947A
Authority
JP
Japan
Prior art keywords
swirl
end plate
component
spiral blade
fixed
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.)
Granted
Application number
JP5333397A
Other languages
Japanese (ja)
Other versions
JP3203919B2 (en
Inventor
Taisei Kobayakawa
大成 小早川
Shuichi Yamamoto
修一 山本
Sadao Kawahara
定夫 河原
Takashi Morimoto
敬 森本
Shozo Hase
昭三 長谷
Teruyuki Akazawa
輝行 赤澤
Hideo Hirano
秀夫 平野
Kiyoshi Sano
潔 佐野
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP33339793A priority Critical patent/JP3203919B2/en
Publication of JPH07189947A publication Critical patent/JPH07189947A/en
Application granted granted Critical
Publication of JP3203919B2 publication Critical patent/JP3203919B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

Abstract

PURPOSE:To enhance performance of a compressor without causing its deterioration due to thermal expansion of a refrigerant by preventing oil from excessively flowing in a compression chamber surrounded by a fixed spiral blade. CONSTITUTION:A communicating groove 47 for communicating an end plate outer peripheral space 45 with an intake chamber disposed in a fixed spiral blade part 10 is formed only at a thrust surface of the fixed spiral blade part 10 on a side of a winding end portion of a turning spiral blade 11.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は空気調和装置等に使用さ
れるスクロール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 scroll compressor used in an air conditioner or the like.

【0002】[0002]

【従来の技術】従来のこの種のスクロール圧縮機につい
て図面とともに説明する。
2. Description of the Related Art A conventional scroll compressor of this type will be described with reference to the drawings.

【0003】図4は密閉容器内に電動機103と圧縮機
構部102を並べて配置し、この密閉容器内空間を吐出
室とした構造の横置きスクロール圧縮機の縦断面図であ
り、また、図5はその圧縮機構部の拡大横断面図であ
る。
FIG. 4 is a vertical cross-sectional view of a horizontal scroll compressor having a structure in which a motor 103 and a compression mechanism section 102 are arranged side by side in a closed container, and the space inside the closed container serves as a discharge chamber. FIG. 4 is an enlarged cross-sectional view of the compression mechanism section.

【0004】この圧縮機における圧縮部への給油は以下
に示すごとくなされていた。吐出室底部の油溜107の
潤滑油を、駆動軸106の副軸受側に取り付けた油ポン
プ142から駆動軸106内を貫通する給油経路143
を介して主軸受側に送る。この一部は旋回渦巻羽根部品
113の内部に設けた絞り機構を有する給油経路143
より、旋回鏡板112の外周および主軸受を有する軸受
部品121で形成される旋回鏡板外周空間145に入
り、旋回渦巻羽根111の旋回運動によってかきあげら
れて固定渦巻羽根部品110のスラスト面165に設け
た2つの吸入室連通溝147と給油溝146から圧縮部
最外周に位置する吸入室に送り込まれ、同時にこの旋回
運動によって内方の圧縮室に導かれるという構成であっ
た。
Oil supply to the compression section in this compressor has been performed as follows. The lubricating oil in the oil reservoir 107 at the bottom of the discharge chamber is penetrated from the oil pump 142 mounted on the auxiliary bearing side of the drive shaft 106 into the drive shaft 106.
To the main bearing side. A part of this is an oil supply path 143 having a throttle mechanism provided inside the swirling spiral blade part 113.
As a result, it enters the swirl mirror plate outer peripheral space 145 formed by the outer circumference of the swirl mirror plate 112 and the bearing component 121 having the main bearing, is lifted up by the swirl motion of the swirl spiral vane 111, and is provided on the thrust surface 165 of the fixed spiral vane component 110. It was configured to be fed from the two suction chamber communication grooves 147 and the oil supply groove 146 to the suction chamber located at the outermost periphery of the compression portion, and at the same time, guided to the inner compression chamber by this swirling motion.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、図5の
ような固定渦巻羽根部品のスラスト面に設けた吸入室へ
の連通溝がともに前記固定渦巻羽根によって外方を囲ま
れる圧縮室に連通する構成では、前記連通溝を介して油
が前記固定渦巻羽根によって外方を囲まれる圧縮室に過
剰に流入し、冷媒を加熱膨張させることによる圧縮機性
能低下を招くという問題があった。
However, as shown in FIG. 5, a communication groove to the suction chamber provided on the thrust surface of the fixed spiral vane component communicates with the compression chamber which is surrounded by the fixed spiral vane. However, there is a problem in that the oil excessively flows into the compression chamber surrounded by the fixed spiral vanes through the communication groove, and the compressor performance is deteriorated by heating and expanding the refrigerant.

【0006】本発明は上記問題点に鑑み、前記固定渦巻
羽根によって外方を囲まれる圧縮室に過剰な油が流入す
るのを防止する構成のスクロール圧縮機を提供するもの
である。
In view of the above problems, the present invention provides a scroll compressor having a structure for preventing excessive oil from flowing into a compression chamber surrounded by the fixed spiral vanes.

【0007】[0007]

【課題を解決するための手段】上記課題を解決するため
に本発明のスクロール圧縮機は、前記鏡板外周空間と前
記固定渦巻羽根部品に設けられた吸入室とを連通する連
通溝を前記旋回渦巻羽根の巻終わり部側の前記固定渦巻
羽根部品のスラスト面のみに設けた構成としたものであ
る。
In order to solve the above-mentioned problems, a scroll compressor of the present invention has a communication groove for communicating the outer peripheral space of the end plate and a suction chamber provided in the fixed spiral vane component with the swirling spiral. The structure is provided only on the thrust surface of the fixed spiral blade component on the winding end side of the blade.

【0008】[0008]

【作用】本発明は上記のごとき構成にしたことにより、
固定渦巻羽根部品のスラスト面に設けた連通溝の固定渦
巻羽根によって外方を囲まれる吸入室への開口面積が減
り、過剰な油の流入を防止することができる。
The function of the present invention is as follows.
The opening area of the communication groove provided on the thrust surface of the fixed spiral vane component to the suction chamber, which is surrounded by the fixed spiral blade, is reduced, and excessive inflow of oil can be prevented.

【0009】[0009]

【実施例】以下、本発明の一実施例を図面とともに説明
する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

【0010】図1は本発明のスクロール圧縮機の実施例
の縦断面図で、図2、図3は圧縮機構部の拡大断面図で
ある。
FIG. 1 is a vertical sectional view of an embodiment of a scroll compressor according to the present invention, and FIGS. 2 and 3 are enlarged sectional views of a compression mechanism portion.

【0011】密閉容器1の内部に圧縮機構2とこれを駆
動する電動機3の固定子4を固定し、電動機3の回転子
5に圧縮機構2を駆動するクランク軸6を結合し、密閉
容器1の圧縮機構2の周囲を油溜7とする。圧縮機構2
は、固定鏡板8に一体に形成した固定渦巻羽根9を有す
る固定渦巻羽根部品10と、この固定渦巻羽根9と噛み
合って複数個の圧縮室14を形成する旋回渦巻羽根11
を旋回鏡板12の上に形成した旋回渦巻羽根部品13
と、この旋回渦巻羽根部品13の自転を防止して旋回の
みをさせる自転拘束部品15と、この旋回鏡板12の旋
回渦巻羽根11の反対側に設けた旋回駆動軸16と、ク
ランク軸6の主軸18の内方に設けこの旋回駆動軸16
が嵌入する偏芯軸受17と、このクランク軸6の主軸1
8を支承する主軸受19を有する軸受部品21と、旋回
鏡板12の背面の鏡板背面20から微小な間隔の隙間を
おいてこの旋回渦巻羽根部品13の軸方向の動きを制限
する軸方向移動制限平面23を有する平面板部品24を
配置する。この平面板部品24に、鏡板背面20にかか
る気体圧力を中心部に掛かる吐出圧力と鏡板背面20の
外周にかかる吐出圧力よりも低い圧力とに仕切る摺動仕
切環25を配設する。圧縮機の吸入管30から吸入した
冷媒気体は、圧縮機構2の吸込口32から圧縮機構2に
入り、圧縮室14で圧縮され、吐出口33から、吐出室
34、固定鏡板8外周に設けた吐出通路35、軸受部品
21に設けた吐出通路36を通り電動機3と圧縮機構2
の間の吐出室37に吐出される。この吐出冷媒気体は、
電動機周辺通路38を通り、吐出管39から圧縮機の外
に導かれる。
The compression mechanism 2 and the stator 4 of the electric motor 3 for driving the compression mechanism 2 are fixed inside the closed container 1, and the rotor 5 of the electric motor 3 is connected to the crankshaft 6 for driving the compression mechanism 2 to form the closed container 1 The periphery of the compression mechanism 2 is used as an oil sump 7. Compression mechanism 2
Is a fixed spiral blade component 10 having a fixed spiral blade 9 formed integrally with the fixed end plate 8, and a swirl spiral blade 11 that meshes with the fixed spiral blade 9 to form a plurality of compression chambers 14.
Swirl blade component 13 formed on the swirl end plate 12
A rotation restraint component 15 for preventing the rotation of the swirl spiral blade component 13 to rotate only, a swivel drive shaft 16 provided on the opposite side of the swirl spiral blade 11 of the swirl end plate 12, and a main shaft of the crankshaft 6. This swivel drive shaft 16 is provided inside 18
Eccentric bearing 17 into which is inserted, and the main shaft 1 of this crankshaft 6.
A bearing component 21 having a main bearing 19 for supporting 8 and an axial movement limit for limiting the axial movement of the swirling spiral blade component 13 with a small gap from the rear face plate 20 of the rear face of the swirling mirror plate 12. A flat plate component 24 having a flat surface 23 is arranged. A sliding partition ring 25 for partitioning the gas pressure applied to the end plate back surface 20 into a discharge pressure applied to the central portion and a pressure lower than the discharge pressure applied to the outer circumference of the end plate back surface 20 is disposed on the flat plate component 24. The refrigerant gas sucked from the suction pipe 30 of the compressor enters the compression mechanism 2 from the suction port 32 of the compression mechanism 2, is compressed in the compression chamber 14, and is provided from the discharge port 33 to the discharge chamber 34 and the outer periphery of the fixed mirror plate 8. The electric motor 3 and the compression mechanism 2 pass through the discharge passage 35 and the discharge passage 36 provided in the bearing component 21.
Is discharged to the discharge chamber 37 between. This discharged refrigerant gas is
It passes through the electric motor peripheral passage 38 and is guided to the outside of the compressor from the discharge pipe 39.

【0012】一方、油溜7よりポンプ42で強制給油さ
れた油は駆動軸6内に設けられた給油経路43を介して
旋回鏡板12内に取り付けられた絞り装置40に入る。
この絞り装置40で適量に調節された油は、旋回鏡板1
2の外周および、軸受部品で形成される鏡板外周空間4
5に溜められる。この鏡板外周空間45に溜められた油
は旋回鏡板12の旋回運動によってかきあげられ、固定
渦巻羽根部品10のスラスト面65に設けた給油溝46
とともに連通溝47より、吸入室に導かれる。
On the other hand, the oil forcibly supplied by the pump 42 from the oil sump 7 enters the throttle device 40 mounted in the turning end plate 12 through the oil supply path 43 provided in the drive shaft 6.
The oil adjusted to an appropriate amount by the expansion device 40 is used as the turning end plate 1.
2 and the end plate outer peripheral space 4 formed by the bearing component
It is stored in 5. The oil accumulated in the outer peripheral space 45 of the end plate is scraped up by the turning motion of the turning end plate 12, and the oil supply groove 46 provided in the thrust surface 65 of the fixed spiral blade part 10 is provided.
At the same time, it is guided to the suction chamber through the communication groove 47.

【0013】上記の構成により、連通溝を介して油が固
定渦巻羽根によって外方を囲まれる吸入室に過剰に流入
し、冷媒を加熱膨張させることによる圧縮機性能低下を
招くことなく、圧縮機性能の向上を図ることができる。
With the above structure, the oil excessively flows into the suction chamber surrounded by the fixed spiral vanes through the communication groove, and the compressor performance is not deteriorated by heating and expanding the refrigerant. The performance can be improved.

【0014】[0014]

【発明の効果】以上から明らかなように本発明は、鏡板
外周空間と前記固定渦巻羽根部品に設けられた吸入室と
を連通する連通溝を前記旋回渦巻羽根の巻終わり部側の
前記固定渦巻羽根部品のスラスト面のみに設けることに
より、固定渦巻羽根部品のスラスト面に設けた連通溝の
固定渦巻羽根によって外方を囲まれる吸入室への開口面
積が減り、過剰な油の流入を防止することができ、冷媒
を加熱膨張させることによる圧縮機性能低下を招くこと
なく、圧縮機性能の向上を図ることができるものであ
る。
As is apparent from the above, according to the present invention, the communication groove for communicating the outer peripheral space of the end plate with the suction chamber provided in the fixed spiral vane component is provided with the fixed spiral on the winding end side of the swirl spiral vane. By providing only on the thrust surface of the blade component, the opening area of the communication groove provided on the thrust surface of the fixed spiral blade component to the suction chamber that is surrounded by the fixed spiral blade is reduced, and excessive inflow of oil is prevented. Therefore, it is possible to improve the compressor performance without degrading the compressor performance due to heat expansion of the refrigerant.

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

【図1】本発明のスクロール圧縮機の一実施例における
縦断面図
FIG. 1 is a vertical sectional view of an embodiment of a scroll compressor of the present invention.

【図2】同圧縮機構部の拡大縦断面図FIG. 2 is an enlarged vertical sectional view of the compression mechanism section.

【図3】同圧縮機構部の拡大横断面図FIG. 3 is an enlarged cross-sectional view of the compression mechanism section.

【図4】従来のスクロール圧縮機の縦断面図FIG. 4 is a vertical sectional view of a conventional scroll compressor.

【図5】従来のスクロール圧縮機の圧縮機構部の拡大横
断面図
FIG. 5 is an enlarged transverse sectional view of a compression mechanism portion of a conventional scroll compressor.

【符号の説明】[Explanation of symbols]

1 密閉容器 2 圧縮機構 3 電動機 6 クランク軸 8 固定鏡板 9 固定渦巻羽根 10 固定渦巻羽根部品 11 旋回渦巻羽根 12 旋回鏡板 13 旋回渦巻羽根部品 14 圧縮室 15 自転拘束部品 18 主軸 19 主軸受 20 旋回鏡板背面 21 軸受部品 25 摺動仕切環 40 絞り装置 42 給油ポンプ 43 給油経路 44 可動シール部材 45 鏡板外周空間 DESCRIPTION OF SYMBOLS 1 airtight container 2 compression mechanism 3 electric motor 6 crankshaft 8 fixed end plate 9 fixed spiral blade 10 fixed spiral blade part 11 swirl spiral blade 12 swirl end plate 13 swirl spiral blade part 14 compression chamber 15 rotation restraint part 18 main spindle 19 main bearing 20 swirl mirror plate Rear surface 21 Bearing part 25 Sliding partition ring 40 Throttle device 42 Oil supply pump 43 Oil supply path 44 Movable seal member 45 End plate outer peripheral space

───────────────────────────────────────────────────── フロントページの続き (72)発明者 森本 敬 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 長谷 昭三 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 赤澤 輝行 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 平野 秀夫 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 佐野 潔 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Morimoto 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Shozo Hase, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 72) Inventor Teruyuki Akazawa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Hideo Hirano 1006 Kadoma, Kadoma City Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Kiyoshi Sano Osaka Prefecture 1006 Kadoma, Kadoma-shi, Matsushita Electric Industrial Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 密閉容器の内部に電動機と、この電動機
で駆動する圧縮機構を配設し、前記圧縮機構は、固定鏡
板の上に固定渦巻羽根を形成した固定渦巻羽根部品と、
前記固定渦巻羽根と噛み合い複数個の圧縮室を形成する
旋回渦巻羽根を旋回鏡板の上に形成した旋回渦巻羽根部
品と、この旋回渦巻羽根部品の自転を防止して旋回のみ
をさせる自転拘束部品と、前記渦巻羽根部品を旋回駆動
するクランク軸と、このクランク軸に形成した主軸を支
承する主軸受を有する軸受部品からなり、前記旋回鏡板
の前記渦巻羽根と反対側の鏡板背面に設けた旋回軸の外
方に、この鏡板背面にかかる圧力を中心部にかかる吐出
圧力と、前記吐出圧力より低い圧力とに仕切る摺動仕切
り環を設け、この摺動仕切り環の内方と、前記旋回鏡板
の外周および、軸受部品で形成される鏡板外周空間とを
連通する給油経路を絞り機構を介して前記旋回羽根部品
の内部に設けるとともに、前記鏡板外周空間と前記固定
渦巻羽根部品に設けられた吸入室とを連通する連通溝を
前記旋回渦巻羽根の巻終わり部側の前記固定渦巻羽根部
品のスラスト面のみに設けてなるスクロール圧縮機。
1. An electric motor and a compression mechanism driven by the electric motor are provided inside a hermetic container, and the compression mechanism includes a fixed spiral blade component having a fixed spiral blade formed on a fixed end plate.
A swirling swirl vane component having swirl swirl vanes formed on a swirl end plate to mesh with the fixed swirl vane to form a plurality of compression chambers; A swivel shaft provided on the end face of the swirl end plate on the side opposite to the swirl vane of the crank shaft for rotating the swirl vane part and a main bearing for supporting a main shaft formed on the crank shaft. A sliding partition ring for partitioning the pressure applied to the back surface of the end plate into a discharge pressure applied to the center and a pressure lower than the discharge pressure is provided outside the An oil supply path communicating with the outer periphery and the outer peripheral space of the end plate formed by the bearing component is provided inside the swirl vane component through a throttle mechanism, and is provided in the outer peripheral space of the end plate and the fixed spiral vane component. It was suction chamber and the scroll compressor a communication groove formed by providing only the thrust surface of the fixed wrap element part winding end portion side of the orbiting wrap element communicating.
JP33339793A 1993-12-27 1993-12-27 Scroll compressor Expired - Fee Related JP3203919B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33339793A JP3203919B2 (en) 1993-12-27 1993-12-27 Scroll compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33339793A JP3203919B2 (en) 1993-12-27 1993-12-27 Scroll compressor

Publications (2)

Publication Number Publication Date
JPH07189947A true JPH07189947A (en) 1995-07-28
JP3203919B2 JP3203919B2 (en) 2001-09-04

Family

ID=18265666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33339793A Expired - Fee Related JP3203919B2 (en) 1993-12-27 1993-12-27 Scroll compressor

Country Status (1)

Country Link
JP (1) JP3203919B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005083290A (en) * 2003-09-10 2005-03-31 Fujitsu General Ltd Scroll compressor
JP2011157974A (en) * 2011-05-13 2011-08-18 Hitachi Appliances Inc Scroll compressor and refrigerating cycle equipped with the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7472808B2 (en) 2021-01-27 2024-04-23 株式会社豊田自動織機 Scroll Compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005083290A (en) * 2003-09-10 2005-03-31 Fujitsu General Ltd Scroll compressor
JP2011157974A (en) * 2011-05-13 2011-08-18 Hitachi Appliances Inc Scroll compressor and refrigerating cycle equipped with the same

Also Published As

Publication number Publication date
JP3203919B2 (en) 2001-09-04

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