JPS60113080A - Sealed type compressor - Google Patents
Sealed type compressorInfo
- Publication number
- JPS60113080A JPS60113080A JP22065083A JP22065083A JPS60113080A JP S60113080 A JPS60113080 A JP S60113080A JP 22065083 A JP22065083 A JP 22065083A JP 22065083 A JP22065083 A JP 22065083A JP S60113080 A JPS60113080 A JP S60113080A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- compression element
- hole
- hollow piece
- press
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/806—Pipes for fluids; Fittings therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、電気冷蔵庫や空気調和機に使用される密閉形
圧縮機に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a hermetic compressor used in electric refrigerators and air conditioners.
第１図は従来公知の密閉形圧縮機（以下圧縮機と云う）
の縦断面図で、略円筒形状の密閉容器１内に電動要素２
と圧縮要素３が収納され、これらは密閉容器１の内壁に
各々の軸心を略一致させて固定されている。ここで、低
圧ガスは、外部がら密閉容器１を貫通する外部バイブ５
ａにより圧縮要素３に導ひかれ、高圧に圧縮されて密閉
容器１の内部に放出された後、吐出パイプ４を経て冷凍
サイクル（図示け“ず）に圧送される。第２図は第１図
のＡ部の詳細図で、従来公知の日本特許出願Ｎｕ５０−
１３２５１１を例として説明すると、外部パイプ５ａが
溶接部６により密閉容器１に設けた穴の外部に接続され
、圧縮要素３は穴３ａの中心が外部パイプ５ａの中心と
一致する位置に固定されている。内部パイプ５ｂは外部
パイプ５ａの内径寸法と圧縮要素の穴３ａの内径寸法に
準じて段付形状に形成され実際のシールの働きを果たす
もので、その内径に更に中空のピース５ｃを圧入し、内
部パイプ５ｂを拡管して確実な密封シール性を確保した
ものである。しかし、次の様な欠点を有していた。即ち
、内部パイプ５ｂは内径及び外径の寸法公差をｌ厳密に
する必要があり、中空ピース５Ｃも内部パイプ５ｂより
も硬い祠料で製作する必要があり、しかも内部パイプ５
ｂの段付形状にならって、段付形状に成形する必要から
外径を機械加工する必要かあり部品コストが高いと云う
欠点があった。更には、中空ピ１ス５Ｃを圧入する際、
圧縮要素３に数１００ Ｋｑから１０００ Ｋ９程度の
圧入力が作用し、しかも、圧縮要素３と密閉容器の間に
は間隙δがあるために密閉容器１と電動要素２の軸心に
対して圧縮要素３の軸心かずれるが、このずれた状態で
、密閉容器１に溶接された外部パイプ５ａと内部パイプ
５Ｃと圧縮要素３の位置か前述した様に固定されるため
に、密閉製器ｌに固定された電動要素２の固定子に対し
て、圧縮要素３の回転軸に固定された電動要素２の回転
子の中心が偏心し、云わゆるエアーギャップが偏心する
ために騒音の増大や、性能の低下を招いていた。Figure 1 shows a conventional hermetic compressor (hereinafter referred to as a compressor).
This is a vertical cross-sectional view showing an electric element 2 in a substantially cylindrical sealed container 1.
and a compression element 3 are housed therein, and these are fixed to the inner wall of the closed container 1 with their axes substantially coinciding with each other. Here, the low pressure gas is passed through an external vibrator 5 that penetrates the airtight container 1 from the outside.
a into the compression element 3, compressed to high pressure and released into the closed container 1, and then sent under pressure to the refrigeration cycle (not shown) through the discharge pipe 4. This is a detailed view of part A of the previously known Japanese patent application Nu50-
132511 as an example, the external pipe 5a is connected to the outside of a hole provided in the closed container 1 by the welded part 6, and the compression element 3 is fixed at a position where the center of the hole 3a coincides with the center of the external pipe 5a. There is. The inner pipe 5b is formed into a stepped shape according to the inner diameter dimension of the outer pipe 5a and the inner diameter dimension of the hole 3a of the compression element, and serves as an actual seal.A hollow piece 5c is further press-fitted into the inner diameter of the inner pipe 5b. The internal pipe 5b is expanded to ensure reliable sealing performance. However, it had the following drawbacks. That is, the inner pipe 5b needs to have strict dimensional tolerances on the inner diameter and outer diameter, and the hollow piece 5C also needs to be made of a harder material than the inner pipe 5b.
Since it is necessary to mold it into a stepped shape following the stepped shape of b, it is necessary to machine the outer diameter, which has the drawback of high parts cost. Furthermore, when press-fitting the hollow stud 5C,
A press force of about 100 Kq to 1000 K9 acts on the compression element 3, and since there is a gap δ between the compression element 3 and the closed container, the compression force is applied to the axis of the closed container 1 and the electric element 2. The axis of the element 3 is shifted, but in this shifted state, the positions of the outer pipe 5a, the inner pipe 5C, and the compression element 3, which are welded to the sealed container 1, are fixed as described above, so that the sealed container l The center of the rotor of the electric element 2, which is fixed to the rotating shaft of the compression element 3, is eccentric with respect to the stator of the electric element 2, which is fixed to the stator of the electric element 2, which is fixed to the rotor. This resulted in a decrease in performance.
本発明の目的は、簡単な構造で、圧縮ｊ幾の重要な部分
である吸込ガスの吸入路を形成し、コストを低減すると
共に、エアギャップの狂いなどの性能低下を招く要因を
改善し、安価で品質の高い圧縮機を市場に提供せんがた
めに成されたものである。The purpose of the present invention is to form a suction path for suction gas, which is an important part of compression geometry, with a simple structure, reduce costs, and improve factors that cause performance deterioration such as air gap deviation. This was done to provide the market with inexpensive, high-quality compressors.
すなわち、圧縮要素の穴に密閉容器を貫通して、パイプ
を挿入し、該パイプの内側に中空ピースを圧入し、該パ
イプを拡管して上記穴を密封したものであり、しかも、
中空ピースの形状は両端を紋り形状とし、圧入時の方向
性を失くしてどちらから挿入しても＝ｒ能としているた
め、誤挿入を防止でき、更には自動組立の場合にも部品
の供給装置を簡略化できる。That is, a pipe is inserted into the hole of the compression element through a closed container, a hollow piece is press-fitted inside the pipe, the pipe is expanded, and the hole is sealed, and,
The shape of the hollow piece has a crest shape on both ends, which eliminates the directionality during press-fitting and allows it to be inserted from either direction, which prevents incorrect insertion and also allows parts to be easily assembled during automatic assembly. The supply device can be simplified.
以下、本発明の一実施例を第３図から第５図により説明
する。第３図は圧縮要素３の穴３ａの内径にパイプ１１
を挿入後、本発明の中空ピース１２を圧入し、上記パイ
プ１１の穴３ａに挿入した部分を拡管し、該パイプ１１
と該穴とを密着固定したものである。外部パイプ５は密
閉容器１に組立ｎｉＩに溶接６などで固定されており、
上記の様に中空ピース１２を圧入した後第１図において
、円筒形の密閉容器１と電動要素２と圧縮要素３の軸心
を一致させ、電動要素２のエアギャップの狂いを修正さ
せた後、上記パイプ１１と外部パイプ５を溶接１３によ
り固定させるものである。第４図は本発明の中空ピース
１２であり、１賂円筒形状で両端の外径形状をテーパー
形又はＲ形に絞り加工したものである。これにより、パ
イプ１１内径に圧入時の挿入はどちらの端部から挿入し
てもパイプ１１の内壁をかじることな（圧入可能である
。An embodiment of the present invention will be described below with reference to FIGS. 3 to 5. FIG. 3 shows a pipe 11 on the inner diameter of the hole 3a of the compression element 3.
After inserting the hollow piece 12 of the present invention, the inserted part of the pipe 11 into the hole 3a is expanded, and the pipe 11
and the hole are tightly fixed. The external pipe 5 is fixed to the airtight container 1 by welding 6 to the assembly niI,
After press-fitting the hollow piece 12 as described above, as shown in FIG. 1, the axes of the cylindrical closed container 1, the electric element 2, and the compression element 3 are aligned, and the air gap deviation of the electric element 2 is corrected. , the pipe 11 and the external pipe 5 are fixed by welding 13. FIG. 4 shows a hollow piece 12 of the present invention, which has a cylindrical shape and has both ends drawn into a tapered or rounded shape. As a result, no matter which end is inserted when press-fitting into the inner diameter of the pipe 11, the inner wall of the pipe 11 is not scratched (press-fitting is possible).
第５図は横形圧縮機に適用した一例であり、同様な構造
が可能である。FIG. 5 shows an example of application to a horizontal compressor, and a similar structure is possible.
本発明によれば、中空ピースの形状を従来の外径段付形
状から略円筒形状に形成可能な構造にしたので、部品の
コストを低下することが可能であり、しかも、中空ピー
スの両端部を絞り形状としたので、パイプ内径に圧入時
、中空ピースのどちらからでも挿入可能として、誤挿入
を防止でき、自動組立も容易になるため、信頼性も向上
する。According to the present invention, since the shape of the hollow piece can be formed into a substantially cylindrical shape instead of the conventional stepped shape on the outer diameter, it is possible to reduce the cost of parts, and moreover, both ends of the hollow piece can be formed into a substantially cylindrical shape. Since it has a drawn shape, it can be inserted from either side of the hollow piece when press-fitting into the inner diameter of the pipe, preventing incorrect insertion and facilitating automatic assembly, improving reliability.
更には、中空ピースを圧入後、エアギャップの精度を確
保した後、パイプと外部パイプを溶接するので、エアギ
ャップの精度が向上し、騒音が低下し、性能も向上する
。よって本発明の実用上の効果は犬である。Furthermore, after press-fitting the hollow piece and ensuring the accuracy of the air gap, the pipe and the external pipe are welded, which improves the accuracy of the air gap, reduces noise, and improves performance. Therefore, the practical effect of the present invention is on dogs.
第１図は従来公知の密閉形圧縮機の縦断面図、第２図は
第１図に示すＡ部の詳細断面図、第３図は本発明の詳細
［υ１面図、第４図は本発明の中空ピースの断面図、第
５図は他の実施例を示す。
１・・・密閉容器、２・・・電動要素、３・・・圧縮要
素、３ａ・・・穴、４・・・吐出パイプ、５ａ・・・外
部パイプ、５ｂ・・・内部パイプ、５Ｃ・・・中空ピー
ス、６・・・溶接、７・・・サブベアリング、１１・・
・パイプ、１１ａ・・・挿入部、１２・・・本発明の中
空ピース、１３・・・溶専マ＄１図
″＄４図Fig. 1 is a longitudinal sectional view of a conventionally known hermetic compressor, Fig. 2 is a detailed sectional view of section A shown in Fig. 1, Fig. 3 is a detailed sectional view of the present invention [υ1 side view, and Fig. 4 is a main view]. A cross-sectional view of the hollow piece of the invention, FIG. 5, shows another embodiment. DESCRIPTION OF SYMBOLS 1... Sealed container, 2... Electric element, 3... Compression element, 3a... Hole, 4... Discharge pipe, 5a... External pipe, 5b... Internal pipe, 5C. ...Hollow piece, 6...Welding, 7...Sub bearing, 11...
・Pipe, 11a...Insertion part, 12...Hollow piece of the present invention, 13...Fusenma $1 figure''$4 figure
Claims (1)
ら密閉容器を貫通し、密閉容器に固定された圧縮要素に
設けられた穴に直接挿入するパイプを有する外部防振式
の密閉形圧縮機において、該パイプの内側に中空ピース
を圧入し、該パイプを拡管して上記圧縮要素の穴と該パ
イプの挿入部分外径とを密着固定すると共に、中空ピー
スの形状は略円筒形であり、しかも両端部の外径形状を
テーパー形又はＲ形に径を縮少させたことを特徴とする
密閉形圧縮機。 ２、上記中空ピースは薄い鉄板を絞り加工して形成する
か、又は鉄パイプを切断した後両端を絞り加工して形成
したことを特徴とする特許請求の範囲第１項記載の密閉
形圧縮機。[Claims] 1. An electric element and a compression element are housed in a sealed container, and an exterior having a pipe that penetrates the sealed container from the outside and is inserted directly into a hole provided in the compression element fixed to the sealed container. In a vibration-proof hermetic compressor, a hollow piece is press-fitted inside the pipe, and the pipe is expanded to tightly fix the hole of the compression element and the outer diameter of the inserted part of the pipe, and the hollow piece is A hermetic compressor characterized in that the shape is approximately cylindrical, and the outer diameter of both ends is reduced to a tapered or R-shape. 2. The hermetic compressor according to claim 1, wherein the hollow piece is formed by drawing a thin iron plate, or by cutting an iron pipe and drawing both ends thereof. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22065083A JPS60113080A (en) | 1983-11-25 | 1983-11-25 | Sealed type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22065083A JPS60113080A (en) | 1983-11-25 | 1983-11-25 | Sealed type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60113080A true JPS60113080A (en) | 1985-06-19 |
Family
ID=16754289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22065083A Pending JPS60113080A (en) | 1983-11-25 | 1983-11-25 | Sealed type compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60113080A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436322U (en) * | 1977-08-17 | 1979-03-09 |
-
1983
- 1983-11-25 JP JP22065083A patent/JPS60113080A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436322U (en) * | 1977-08-17 | 1979-03-09 |
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