JPH04132894A - Closed rotary compressor - Google Patents

Closed rotary compressor

Info

Publication number
JPH04132894A
JPH04132894A JP25019690A JP25019690A JPH04132894A JP H04132894 A JPH04132894 A JP H04132894A JP 25019690 A JP25019690 A JP 25019690A JP 25019690 A JP25019690 A JP 25019690A JP H04132894 A JPH04132894 A JP H04132894A
Authority
JP
Japan
Prior art keywords
metal plate
case
closed case
rotary compressor
bearing
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
JP25019690A
Other languages
Japanese (ja)
Inventor
Hideki Yazawa
矢沢 秀樹
Yasuo Ishikawa
石川 津雄
Masayasu Sudo
須藤 正庸
Akio Machida
秋雄 町田
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP25019690A priority Critical patent/JPH04132894A/en
Publication of JPH04132894A publication Critical patent/JPH04132894A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To reduce the generation of noise by a closed case and to improve assembling ability by fixing a metallic disc to either a bearing or a cylinder and bringing a part of the metallic disc into wear contact with the inner wall of the closed case. CONSTITUTION:An outside diameter D1 of a metallic disc 14 is lower than the inside diameter of a closed case 1 and the metallic disc forms a guide during engagement of the closed case 1. A slit 14d is formed in the outer periphery of the metallic disc and serves to smooth engagement. Since an outside diameter D2 of a wear contact part 14b is slightly higher than the inside diameter of the closed case 1, after engagement, the wear contact part 14b is brought into reliable contact with the inner peripheral wall of the closed case after engagement of the case. Thus, vibration in a radial direction of a main bearing 5 occasioned by compression of a refrigerant is divided into vibration transmitted directly to the closed case 1 through a weld point 7 and vibration producing friction energy through the wear contact part 14b. An amount of the frictional energy produces an amount of reduction of vibration transmitted to the closed case 1. Further, the frictional contact part 14b also damps vibration except vibration in a radial direction by a main bearing 5 and generated by the closed case 1.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、冷凍冷蔵装置等に用いられる密閉形回転圧縮
機に係り、密閉ケースの振動を抑制するのに好適な密閉
形回転圧縮機に関するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hermetic rotary compressor used in refrigeration equipment, etc., and relates to a hermetic rotary compressor suitable for suppressing vibration of a hermetic case. It is something.

〔従来の技術〕[Conventional technology]

まず、従来の一般的な密閉形回転圧縮機を第4図を参照
して説明する。
First, a conventional general hermetic rotary compressor will be explained with reference to FIG.

第4図は、従来の密閉形回転圧縮機の縦断面図である。FIG. 4 is a longitudinal sectional view of a conventional hermetic rotary compressor.

第4図において、1は密閉ケースで、電動機部と圧縮機
部とを収納している。2は固定子、3は回転子であり、
電動機部を構成している。4は回転軸であり、回転子3
に圧入されている。5は主軸受、6は副軸受であり、回
転軸4を軸支している。7は溶接点であり、主軸受5を
密閉ケースに溶着固定している。8はシリンダであり、
主軸受5と副軸受6の間に挾まれて締結されている。9
はクランク軸であり回転軸4に設けである。10はロー
ラであり、クランク軸9に嵌合され、シリンダ8の内壁
に沿って可動するよう配設されている。
In FIG. 4, reference numeral 1 denotes a sealed case that houses an electric motor section and a compressor section. 2 is a stator, 3 is a rotor,
It constitutes the electric motor section. 4 is a rotating shaft, rotor 3
is press-fitted into the 5 is a main bearing, and 6 is a sub-bearing, which pivotally supports the rotating shaft 4. 7 is a welding point, and the main bearing 5 is welded and fixed to the sealed case. 8 is a cylinder;
It is sandwiched and fastened between the main bearing 5 and the sub-bearing 6. 9
is a crankshaft and is provided on the rotating shaft 4. A roller 10 is fitted onto the crankshaft 9 and is arranged to move along the inner wall of the cylinder 8.

11は、ベーンであり、先端がローラ10に当接しシリ
ンダ8内の空間を吸入室と圧縮室に区分している。12
は締付ボルトである。13は吐出室カバーであり、締付
ボルト12により副軸受6の端部に締結されている。
Reference numeral 11 denotes a vane whose tip abuts against the roller 10 and divides the space inside the cylinder 8 into a suction chamber and a compression chamber. 12
is a tightening bolt. Reference numeral 13 denotes a discharge chamber cover, which is fastened to the end of the secondary bearing 6 with a tightening bolt 12.

このように構成された従来の圧縮機において、主軸受5
が密閉ケース1に直接溶接により固定されているため、
クランク軸9、ローラ10、シリンダ8、主軸受5、副
軸受6、ベーン11からなる圧縮機部より発生する振動
は、主軸受5を介して直接密閉ケース2に伝達されるこ
とになる。これにより、密閉ケース2が加振され運転騒
音の原因となっていた。
In the conventional compressor configured in this way, the main bearing 5
is fixed to the sealed case 1 by direct welding,
Vibrations generated from the compressor section consisting of the crankshaft 9, rollers 10, cylinder 8, main bearing 5, sub-bearing 6, and vane 11 are directly transmitted to the sealed case 2 via the main bearing 5. This caused the sealed case 2 to vibrate, causing operational noise.

また、特開昭63−255591号公報記載の密閉形回
転圧縮機では、円盤状の軸受もしくはシリンダの外周部
に軟質金属よりなるリング状の歪吸収材を備え、前記歪
吸収材を介して前記軸受もしくはシリンダを密閉ケース
に固定するとともに、前記密閉ケースの前記吸収材を固
定する部分に円周方向に凹部または凸部形状のリブを備
え、密閉ケースの変形振動による騒音発生を防止してい
る。
Furthermore, in the hermetic rotary compressor described in Japanese Patent Application Laid-open No. 63-255591, a ring-shaped strain absorbing material made of soft metal is provided on the outer periphery of a disk-shaped bearing or cylinder, and the strain absorbing material is The bearing or the cylinder is fixed to the sealed case, and a rib in the shape of a concave or convex portion is provided in the circumferential direction on the part of the sealed case to which the absorbent material is fixed, to prevent noise generation due to deformation vibration of the sealed case. .

しかし、この技術は密閉ケースにリブを形成する作業工
数が増加することについて配慮されていなかった。
However, this technique did not take into account the increase in the number of man-hours required to form the ribs on the sealed case.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記第4図に示した従来の密閉形回転圧縮機は、軸受ま
たはシリンダから密閉ケースへ伝わる振動伝達量につい
て配慮がされておらず、密閉ケースの加振による運転騒
音が大きいという問題があった。
The conventional hermetic rotary compressor shown in Fig. 4 above did not take into account the amount of vibration transmitted from the bearing or cylinder to the hermetic case, and had the problem of large operating noise due to vibration of the hermetic case. .

本発明は、上記従来技術の問題点を解決するためになさ
れたもので、圧縮機部から密閉ケースへの振動の伝播を
減少させ、密閉ケースから起こる騒音の低減を図りうる
密閉形回転圧縮機を提供することを、その目的とするも
のである。
The present invention has been made in order to solve the problems of the prior art described above, and is a hermetic rotary compressor capable of reducing the propagation of vibrations from the compressor section to the hermetic case and reducing the noise generated from the hermetic case. Its purpose is to provide.

また、本発明の他の目的は、振動伝達量の低減に用いる
金属部材の具体的形状を特定して、組立性を良くした密
閉形回転圧縮機を提供することにある。
Another object of the present invention is to provide a hermetic rotary compressor that is easy to assemble by specifying the specific shape of the metal member used to reduce the amount of vibration transmitted.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的を達成するために、本発明に係る密閉形回転圧
縮機の構成は、密閉ケース内に電動機部および圧縮機部
を備え、前記圧縮機部の軸受またはシリンダのいずれか
を密閉容器に固定してなる密閉形回転圧縮機において、
前記軸受またはシリンダのいずれかに金属板を固定し、
この金属板の一部を密閉ケース内壁に摩擦接触させたも
のである。
In order to achieve the above object, the hermetic rotary compressor according to the present invention has a structure that includes an electric motor section and a compressor section in a closed case, and either a bearing or a cylinder of the compressor section is fixed to the closed container. In a hermetic rotary compressor made of
fixing a metal plate to either the bearing or the cylinder;
A portion of this metal plate is brought into frictional contact with the inner wall of the sealed case.

より効果的にするには、その金属板は、軸受またはシリ
ンダのいずれかの円盤面に固定すべき平坦面と、密閉ケ
ースの内壁に摩擦接触すべき外周壁とを一体形成すると
ともに環状の形状としたものであり、その外周壁に複数
のスリットを設けたものである。
To be more effective, the metal plate should have a flat surface that should be fixed to the disc surface of either the bearing or the cylinder, an outer peripheral wall that should be in frictional contact with the inner wall of the sealed case, and an annular shape. It has a plurality of slits in its outer peripheral wall.

また、組立性向上の目的を達成するために、金属板の形
状を、摩擦接触部を形成する外周壁の先端部外径寸法D
□は密閉ケース内径寸法よりやや/JSさくし、外周壁
中央部の最大外径寸法D2は前記密閉ケース内径寸法よ
りやや大きくし、軸受またはシリンダのいずれかに固定
すべき平坦部の外径寸法D3は、前記軸受またはシリン
ダのいずれかの外径より小さく形成したものである。
In addition, in order to achieve the purpose of improving assembly ease, the shape of the metal plate was changed to the outer diameter dimension D of the tip of the outer peripheral wall forming the frictional contact part.
□ is slightly larger than the inner diameter of the sealed case, the maximum outer diameter D2 of the central part of the outer peripheral wall is slightly larger than the inner diameter of the sealed case, and the outer diameter D3 of the flat part to be fixed to either the bearing or the cylinder is is formed smaller than the outer diameter of either the bearing or the cylinder.

〔作用〕 上記の技術的手段によって、本発明は、シリンダまたは
軸受から伝わる振動を金属板と密閉ケースとの摩擦によ
り熱等へ変換し、密閉ケースへの振動伝達を減少するよ
うに作用させること、および上記以外より起きる密閉ケ
ースの振動を金属板との接触により減衰させるように作
用することが可能となり、以上の作用により、圧縮機に
起こる、ケース振動による運転騒音を減少させることが
できるものである。
[Operation] Through the above-mentioned technical means, the present invention converts the vibration transmitted from the cylinder or bearing into heat etc. by friction between the metal plate and the sealed case, and acts to reduce the transmission of vibration to the sealed case. , and the vibration of the closed case caused by reasons other than those mentioned above can be damped by contact with the metal plate, and the above-mentioned action can reduce the operating noise caused by the case vibration that occurs in the compressor. It is.

また、金属板の具体的形状は下記の働きをもたらす。Further, the specific shape of the metal plate brings about the following functions.

環状金属板の外壁端部の外形寸法を密閉ケース内径寸法
より小さくしたことは、環状金属板を密閉ケースに嵌め
合わせる場合のガイドとなるように作用する。
The outer dimension of the outer wall end of the annular metal plate is made smaller than the inner diameter of the sealed case, which acts as a guide when fitting the annular metal plate into the sealed case.

環状金属板の外周部のスリットは、密閉ケースとの嵌合
をスムーズにできるよう作用する。
The slits on the outer periphery of the annular metal plate function to ensure smooth fitting with the sealed case.

金属板の外壁中央部の外形寸法D2は、密閉ケース内径
寸法よりやや大きくしたことにより、ケース嵌合径確実
に密閉ケースに接触するように作用する。
By making the outer dimension D2 of the central portion of the outer wall of the metal plate slightly larger than the inner diameter of the sealed case, the case fitting diameter acts to ensure reliable contact with the sealed case.

そして、環状金属板は、密閉ケースへの押付力を向上し
、接触力を強くするように作用する。
The annular metal plate acts to improve the pressing force against the sealed case and strengthen the contact force.

〔実施例〕〔Example〕

以下、本発明の一実施例を第1図ないし第3図を参照し
て説明する。
Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 3.

第1図は、本発明の一実施例に係る密閉形回転圧縮機の
縦断面図、第2図は、第1図の密閉形回転圧縮機に用い
られる環状金属板の斜視図、第3図は、第2図の断面図
である。
FIG. 1 is a vertical sectional view of a hermetic rotary compressor according to an embodiment of the present invention, FIG. 2 is a perspective view of an annular metal plate used in the hermetic rotary compressor of FIG. 1, and FIG. is a sectional view of FIG. 2;

第1図において、第4図と同一符号のものは、従来例と
同等部分であるから、その説明を省略する。
In FIG. 1, the same reference numerals as those in FIG. 4 are the same parts as in the conventional example, so the explanation thereof will be omitted.

第1図に示す密閉形回転圧縮機は、環状の金属板14を
主軸受5の円盤面に固定用ボルト15で締結したもので
、金属板14の摩擦接触部を形成する外周壁が全周にわ
たって密閉ケース1の内壁に接触しているものである。
The hermetic rotary compressor shown in FIG. 1 has an annular metal plate 14 fastened to the disc surface of the main bearing 5 with fixing bolts 15, and the outer circumferential wall forming the frictional contact part of the metal plate 14 is It is in contact with the inner wall of the sealed case 1 throughout.

環状の金属板14の具体的な形状を第2,3図に示す。The specific shape of the annular metal plate 14 is shown in FIGS. 2 and 3.

金属板14はばね性を有するもので、主軸受5の側面で
ある円盤面に固定すべき平坦面14aと、密閉ケース1
の内周壁に摩擦接触すべき外周壁である摩擦接触部14
bとを一体形成したほぼ環状をなす金属部材である。そ
して摩擦接触部14bの外周壁に複数のスリット14d
が設けられている。また。
The metal plate 14 has a spring property, and has a flat surface 14a to be fixed to the disk surface which is the side surface of the main bearing 5, and a closed case 1.
The friction contact portion 14 is an outer circumferential wall that should come into frictional contact with the inner circumferential wall of
It is a substantially annular metal member integrally formed with b. A plurality of slits 14d are formed on the outer peripheral wall of the friction contact portion 14b.
is provided. Also.

平坦部14aには、固定用ボルト15で相手主軸受7に
金属板14を取付けるための取付穴14cが複数個(第
2図では3個)穿孔されている。
A plurality of mounting holes 14c (three in FIG. 2) for mounting the metal plate 14 to the mating main bearing 7 with fixing bolts 15 are bored in the flat portion 14a.

摩擦接触部14bの外周壁先端部の外径寸法D工は、密
閉ケース1の内径寸法よりやや小さく形成されており、
摩擦接触部14b、すなわち外周壁中央部の最も大径部
の外形寸法D2は、前記密閉ケース1の内径寸法よりや
や大きく形成されており、かつ、平坦部14aの外径寸
法D3は、主軸受5の外径寸法より小さく形成されてい
る。
The outer diameter dimension D of the tip of the outer peripheral wall of the friction contact portion 14b is formed to be slightly smaller than the inner diameter dimension of the sealed case 1.
The external dimension D2 of the friction contact portion 14b, that is, the largest diameter portion at the center of the outer circumferential wall is formed to be slightly larger than the inner diameter dimension of the sealed case 1, and the outer diameter dimension D3 of the flat portion 14a is larger than that of the main bearing. It is formed smaller than the outer diameter dimension of No.5.

次に、金属板14の組立手順を説明する。Next, a procedure for assembling the metal plate 14 will be explained.

圧縮機部の組立段階で、あらかじめ金属板14を主軸受
5の円盤面に固定用ボルト15で締結固定し、次に電動
機部と圧縮機部とを組合わせたのち、密閉ケース1と固
定子2とを焼嵌めで結合し、最後に主軸受5と密閉ケー
ス1とを溶接固定するものである。
At the stage of assembling the compressor section, the metal plate 14 is fastened and fixed in advance to the disc surface of the main bearing 5 with fixing bolts 15, and then the electric motor section and the compressor section are assembled, and then the sealed case 1 and the stator are assembled. 2 are coupled by shrink fitting, and finally the main bearing 5 and the sealed case 1 are fixed by welding.

本構造において、金属板14の外径寸法D□は密閉ケー
ス内径より小さくなっており、密閉ケース1が嵌合する
際のガイドとなる。また、金属板14の外周にはスリッ
トが配設されているため、ケースの嵌合をスムーズに行
うことができる。そして。
In this structure, the outer diameter dimension D□ of the metal plate 14 is smaller than the inner diameter of the sealed case, and serves as a guide when the sealed case 1 is fitted. Further, since a slit is provided on the outer periphery of the metal plate 14, the case can be fitted smoothly. and.

金属板14の摩擦接触部14bの外径寸法D2は、密閉
ケース1の内径よりやや大きくなっているので。
The outer diameter dimension D2 of the friction contact portion 14b of the metal plate 14 is slightly larger than the inner diameter of the sealed case 1.

ケース嵌合後は、密閉ケース1の内周壁に金属板14の
摩擦接触部14bが確実に接触する。
After the cases are fitted, the friction contact portion 14b of the metal plate 14 reliably contacts the inner circumferential wall of the sealed case 1.

このような構成の密閉形回転圧縮機において、冷媒圧縮
等により起こる主軸受5の半径方向の振動は、溶接点7
を介して直接密閉ケース1に伝わるものと、金属板14
の摩擦接触部14bを介して摩擦エネルギーとなるもの
とに分けられる。この摩擦エネルギー分が密閉ケース1
に伝わる振動の減少分となる。
In a hermetic rotary compressor with such a configuration, vibrations in the radial direction of the main bearing 5 caused by refrigerant compression etc.
and the metal plate 14 that is transmitted directly to the sealed case 1 via the metal plate 14.
The frictional energy is divided into that which becomes frictional energy via the frictional contact portion 14b. This frictional energy is the sealed case 1
This is the reduction in vibration transmitted to

また、金属板14の摩擦接触部14bは、主軸受5によ
る半径方向振動以外による、密閉ケース1に起こる振動
をも減衰することになる。
Further, the friction contact portion 14b of the metal plate 14 also damps vibrations occurring in the sealed case 1 due to vibrations other than the radial vibrations caused by the main bearing 5.

本実施例によれば、主軸受に固定された環状金属板を密
閉ケース内周壁に接触するようにしたことにより、金属
板と密閉ケースとの間に摩擦を起こさせ、圧縮機部から
の振動の伝播を減少させ、密閉ケースから起こる騒音の
低減を図ることができる。
According to this embodiment, by making the annular metal plate fixed to the main bearing contact the inner wall of the sealed case, friction is generated between the metal plate and the sealed case, and vibrations from the compressor section are generated. The noise generated from the closed case can be reduced by reducing the propagation of noise.

また、本実施例の金属板の具体的形状により、下記の効
果がある。
Further, depending on the specific shape of the metal plate of this example, the following effects can be obtained.

環状金属板の外周壁先端部の外径寸法D1を、密閉ケー
ス内径寸法より小さくしたことにより、金属板を密閉ケ
ースに嵌合する場合のガイドとなり、組立性が良くなる
By making the outer diameter D1 of the tip of the outer circumferential wall of the annular metal plate smaller than the inner diameter of the sealed case, it serves as a guide when fitting the metal plate into the sealed case, improving ease of assembly.

環状金属板の外周壁にスリットをいれることにより密閉
ケースとの嵌合をスムーズにし、容易な組体性が得られ
る。
By making slits in the outer circumferential wall of the annular metal plate, fitting with the sealed case is made smooth and easy assembly is achieved.

また、環状金属板の外周壁中央部すなわち摩擦接触部の
外径寸法D2は密閉ケース内径寸法よりやや大きくした
ので、ケース嵌合後、確実に密閉ケース内周壁に接触し
、安定した騒音低減量を得ることができる。
In addition, the outer diameter D2 of the central part of the outer circumferential wall of the annular metal plate, that is, the friction contact part, is made slightly larger than the inner diameter of the sealed case, so that after the case is fitted, it will surely contact the inner circumferential wall of the sealed case, resulting in stable noise reduction. can be obtained.

このように環状金属板により、ケースに対する押付力を
上げ、接触力を強くし、騒音低減効果を大きくすること
ができる。
In this way, the annular metal plate can increase the pressing force against the case, strengthen the contact force, and increase the noise reduction effect.

なお、上記の実施例は環状金属板を主軸受に固定した例
を説明したが1本発明はこれに限らず、シリンダが密閉
容器内周壁に溶接固定されたものにあってはシリンダの
円盤面に環状金属板を固定してもよいことは言うまでも
ない。
Although the above embodiment describes an example in which an annular metal plate is fixed to the main bearing, the present invention is not limited to this, and in the case where the cylinder is welded and fixed to the inner circumferential wall of a closed container, the circular metal plate is fixed to the main bearing. Needless to say, a ring-shaped metal plate may be fixed to.

〔発明の効果〕 以上、詳細に説明したように、本発明によれば、圧縮機
部から密閉ケースへの振動の伝播を減少させ、密閉ケー
スから起こる騒音の低減を図りうる密閉形回転圧縮機を
提供することができる。
[Effects of the Invention] As described above in detail, the present invention provides a hermetic rotary compressor that can reduce the propagation of vibrations from the compressor section to the hermetic case and reduce the noise generated from the hermetic case. can be provided.

また、振動伝達量の低減に用いる金属部材の具体的形状
を特定して、組立性を良くした密閉形回転圧縮機を提供
することができる。
Further, by specifying the specific shape of the metal member used to reduce the amount of vibration transmission, it is possible to provide a hermetic rotary compressor that is easy to assemble.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、本発明の一実施例に係る密閉形回転圧縮機の
縦断面図、第2図は、第1図の密閉形回転圧縮機に用い
られる環状金属板の斜視図、第3図は、第2図の断面図
、第4図は、従来の密閉形回転圧縮機の縦断面図である
。 1・・・密閉ケース、2・・・固定子、3・・・回転子
、4・・・回転軸、5・・・主軸受、8・・・シリンダ
、10・・・ローラ、14・・・金属板、14a・・・
平坦部、14b・・・摩擦接触部、14d・・・スリッ
ト、15・・・固定用ボルト。 躬 1 口
FIG. 1 is a vertical sectional view of a hermetic rotary compressor according to an embodiment of the present invention, FIG. 2 is a perspective view of an annular metal plate used in the hermetic rotary compressor of FIG. 1, and FIG. 2 is a sectional view of FIG. 2, and FIG. 4 is a longitudinal sectional view of a conventional hermetic rotary compressor. DESCRIPTION OF SYMBOLS 1... Sealed case, 2... Stator, 3... Rotor, 4... Rotating shaft, 5... Main bearing, 8... Cylinder, 10... Roller, 14...・Metal plate, 14a...
Flat part, 14b... Friction contact part, 14d... Slit, 15... Fixing bolt. 1 mouth

Claims (1)

【特許請求の範囲】 1、密閉ケース内に電動機部および圧縮機部を備え、前
記圧縮機部の軸受またはシリンダのいずれかを密閉容器
に固定してなる密閉形回転圧縮機において、 前記軸受またはシリンダのいずれかに金属板を固定し、 この金属板の一部を密閉ケース内壁に摩擦接触させた ことを特徴とする密閉形回転圧縮機。 2、金属板は、 軸受またはシリンダのいずれかの円盤面に固定すべき平
坦面と、 密閉ケースの内壁に摩擦接触すべき外周壁とを一体形成
されて成るとともに、 環状の形状とされた ことを特徴とする請求項1記載の密閉形回転圧縮機。 3、金属板の摩擦接触部を形成する外周壁に複数のスリ
ットを設けたことを特徴とする請求項1または2記載の
いずれかの密閉形回転圧縮機。 4、金属板の形状を、 摩擦接触部を形成する外周壁の先端部外径寸法D_1は
密閉ケース内径寸法よりやや小さくし、外周壁中央部の
最大外径寸法D_2は前記密閉ケース内径寸法よりやや
大きくし、軸受またはシリンダのいずれかに固定すべき
平坦部の外径寸法D_3は、前記軸受またはシリンダの
いずれかの外径より小さく形成した ことを特徴とする請求項1ないし3記載のいずれかの密
閉形回転圧縮機。
[Claims] 1. A hermetic rotary compressor comprising an electric motor section and a compressor section in a closed case, and either a bearing or a cylinder of the compressor section is fixed to a closed container, comprising: A hermetic rotary compressor characterized in that a metal plate is fixed to one of the cylinders, and a part of the metal plate is brought into frictional contact with the inner wall of the hermetic case. 2. The metal plate must be integrally formed with a flat surface to be fixed to the disc surface of either the bearing or the cylinder, and an outer peripheral wall to be in frictional contact with the inner wall of the sealed case, and must have an annular shape. The hermetic rotary compressor according to claim 1, characterized in that: 3. The hermetic rotary compressor according to claim 1 or 2, wherein a plurality of slits are provided in the outer peripheral wall forming the frictional contact portion of the metal plate. 4. The shape of the metal plate is such that the outer diameter dimension D_1 of the tip of the outer circumferential wall that forms the friction contact part is slightly smaller than the inner diameter dimension of the sealed case, and the maximum outer diameter dimension D_2 of the central part of the outer circumferential wall is smaller than the inner diameter dimension of the sealed case. Any one of claims 1 to 3, characterized in that the outer diameter dimension D_3 of the flat portion to be slightly enlarged and fixed to either the bearing or the cylinder is smaller than the outer diameter of either the bearing or the cylinder. A hermetic rotary compressor.
JP25019690A 1990-09-21 1990-09-21 Closed rotary compressor Pending JPH04132894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25019690A JPH04132894A (en) 1990-09-21 1990-09-21 Closed rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25019690A JPH04132894A (en) 1990-09-21 1990-09-21 Closed rotary compressor

Publications (1)

Publication Number Publication Date
JPH04132894A true JPH04132894A (en) 1992-05-07

Family

ID=17204251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25019690A Pending JPH04132894A (en) 1990-09-21 1990-09-21 Closed rotary compressor

Country Status (1)

Country Link
JP (1) JPH04132894A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1788250A1 (en) * 2005-11-22 2007-05-23 J&E Hall Limited Method and apparatus for compressor re-manufacture
US7338263B2 (en) 2005-11-22 2008-03-04 J & E Hall Ltd. Method and apparatus for compressor re-manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1788250A1 (en) * 2005-11-22 2007-05-23 J&E Hall Limited Method and apparatus for compressor re-manufacture
US7338263B2 (en) 2005-11-22 2008-03-04 J & E Hall Ltd. Method and apparatus for compressor re-manufacture

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