JPS63314383A - Compressor - Google Patents

Compressor

Info

Publication number
JPS63314383A
JPS63314383A JP62151625A JP15162587A JPS63314383A JP S63314383 A JPS63314383 A JP S63314383A JP 62151625 A JP62151625 A JP 62151625A JP 15162587 A JP15162587 A JP 15162587A JP S63314383 A JPS63314383 A JP S63314383A
Authority
JP
Japan
Prior art keywords
casing
outlet pipe
flange
cylinder body
welding
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
JP62151625A
Other languages
Japanese (ja)
Other versions
JPH07117043B2 (en
Inventor
Michiharu Tsukada
塚田 道春
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries 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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Priority to JP62151625A priority Critical patent/JPH07117043B2/en
Publication of JPS63314383A publication Critical patent/JPS63314383A/en
Publication of JPH07117043B2 publication Critical patent/JPH07117043B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008Hermetic pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/80Other components
    • F04C2240/806Pipes for fluids; Fittings therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To shorten the assembly process by forming a lower hole at the part corresponding to a coolant suction inlet on the side wall of a compressor casing and forming a connecting cylinder body through the burring work and welding a flange formed as an outlet pipe for an accumulator, onto the cylinder body. CONSTITUTION:A rotary type compressor is equipped with a compression element 2 which is formed by accommodating a rotor in rotatable ways into the coolant compression chamber of a cylinder 3 having a coolant suction port 31. When the outlet pipe 7 of an accumulator is connected with the coolant inlet port 31, a lower hole is drilled at the part corresponding to the suction inlet 31 on the side wall of a sealed casing 1, and a cylinder body 12 is formed by bulging out the periphery of the lower hole outwardly by the burring work. While, a flange 71 opposed to the buldged-out top edge surface of the cylinder body 12 is formed on the outlet pipe 7. After the outlet pipe 7 is inserted into the suction inlet 31 from the cylinder body 12, the flange 71 is fixed onto the bulged-out top edge surface of the cylinder body 12 by projection welding.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は圧縮機、詳しくはケーシングに冷媒吸入口を
もった圧縮要素を内装し、前記吸入口をアキユムレータ
に接続するごとくした圧縮機に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a compressor, and more particularly, to a compressor in which a casing includes a compression element having a refrigerant suction port, and the suction port is connected to an accumulator.

(従来の技術) 一般に圧縮機は、接続口を開設したケーシングの内部に
、冷媒吸入口をもった圧縮要素を、前記吸入口を前記接
続口と対応させて組込み、アキュムレータの出口管から
導入する低圧流体を、前記接続口に継手管を介して前記
ケーシングに固定されるインレットチューブを通して前
記吸入口に接続する如くしている。
(Prior Art) In general, a compressor incorporates a compression element having a refrigerant suction port inside a casing in which a connection port is provided, with the suction port corresponding to the connection port, and the refrigerant is introduced from the outlet pipe of an accumulator. Low pressure fluid is connected to the suction port through an inlet tube fixed to the casing via a joint pipe to the connection port.

この場合、前記ケーシングに開設された前記接続口周り
での前記継手管の固定に際しては、一般的に830〜9
50℃の高温に達するロウ付は溶接手段が採用されると
ころであるが、このロウ付は溶接が前記ケーシングの接
続口周りという圧縮要素に極く近接した箇所近くで行わ
れることから、前記ロウ付は溶接時に発生する大きな熱
が前記圧縮要素に伝達されて、該圧縮要素が歪んだりす
るなどの悪影響を受ける問題があった。
In this case, when fixing the joint pipe around the connection port opened in the casing, generally 830 to 9
Welding is used for brazing that reaches a high temperature of 50°C, but since welding is performed near the connection port of the casing, which is very close to the compression element, However, there was a problem in that a large amount of heat generated during welding was transferred to the compression element, causing the compression element to be distorted and other adverse effects.

即ち、第4図は、縦軸に温度(’C)を、横軸に時間(
S)をとった溶接時の温度曲線を示しており、この図か
ら明らかなごとく、ロウ付は溶接に必要な温度(830
〜950℃)に達するまでには、25〜30秒間にわた
って余熱する必要があり、その間に継続的に熱の供給が
なされ、前記溶接温度に達してロウ付けが行なわれた後
にも所定時間にわたって高温杖態を維持し続けるのであ
って、従って前記ロウ付は溶接手段を採用する場合には
、熱の発生量が大きく、この熱が前記圧縮要素に悪影響
を与えたのである。
That is, in Figure 4, the vertical axis shows temperature ('C) and the horizontal axis shows time ('C).
This figure shows the temperature curve during welding at a temperature of 830°C.
It is necessary to preheat for 25 to 30 seconds until the temperature reaches ~950℃, during which time heat is continuously supplied, and even after the welding temperature is reached and brazing is performed, the high temperature is maintained for a predetermined period of time. Therefore, when welding is used for brazing, a large amount of heat is generated, and this heat has an adverse effect on the compression element.

これに対し、従来前記圧縮要素に熱影響を与えることな
く、前記継手管の固定を可能にすべくしたものが、特公
昭61−27596号公報において提案されている。
On the other hand, Japanese Patent Publication No. 61-27596 proposes a method that allows the joint pipe to be fixed without causing a thermal effect on the compression element.

即ち、この公報記載のものは、第5図に示したごとく、
ケーシング(1)内に圧縮要素(2)を組込む以前に、
予め前記ケーシング(1)に開設した接続口(11)に
継手管(P)を挿入して、該継手管CP)をロウ付は溶
接手段(a)により固定し、このロウ付は溶接時に発生
した熱が冷却し、前記ケーシング(1)の熱変形が少な
くなった後に、前記ケーシング(1)の内部に前記圧縮
要素(2)を、該圧縮要素(2)に形成した冷媒吸入口
(31)が前記継手管(P)と対向するごと組込み、さ
らに前記継手管(P)の開放側から前記吸入口(31)
へとインレフトチューブ(K)を挿入し、また該インレ
ットチューブ(K)の開放側端部にアキュムレータから
延びる冷媒出口管(7)を套嵌させて、この出口管(7
)と前記インレットチューブ(K)との間、及び該イン
レットチューブ(K)と前記継手管(P)との間を、そ
れぞれロウ付は溶接手段(b)(c)で固定するように
している。
That is, what is described in this publication is as shown in Figure 5.
Before incorporating the compression element (2) into the casing (1),
The joint pipe (P) is inserted into the connection port (11) previously opened in the casing (1), and the joint pipe (CP) is fixed by the welding means (a), and the brazing occurs during welding. After the heat has cooled down and the thermal deformation of the casing (1) has decreased, the compression element (2) is installed inside the casing (1), and the refrigerant suction port (31) formed in the compression element (2) is opened. ) facing the joint pipe (P), and then insert the suction port (31) from the open side of the joint pipe (P).
Insert the inlet tube (K) into the inlet tube (K), and fit the refrigerant outlet pipe (7) extending from the accumulator into the open end of the inlet tube (K).
) and the inlet tube (K) and between the inlet tube (K) and the joint pipe (P) are fixed by brazing and welding means (b) and (c), respectively. .

(発明が解決しようとする問題点) ところが以上のごとき圧縮機においては、前記継手管(
P)と前記ケーシング(1)とのロウ付は溶接が、該ケ
ーシング(1)内に前記圧縮要素(2)を組込む以前に
行われる点と、前記継手管(P)と前記インレットチュ
ーブ(K)との接合部、及び該インレットチューブ(K
)と前記冷媒出口管(7)との接合部間が、継手管(P
)の長さ分だけ圧縮要素(2)から遠のき、該圧縮要素
(2)から比較的離れた位置でロウ付は溶接がなされる
点とから、圧縮要素(2)への熱による悪影音はある程
度排除できるのであるが、単に継手管(P)の長さ寸法
により圧縮要素(2)に伝わる熱影響を低減しようとす
るものであって、対策としては不十分なものであるし、
又、以上の圧縮機では、前記出口管(7)を前記吸入口
(31)に接続する場合、前記継手管(P)とインレッ
トチューブ(K)とが必要部品となり、これら部品を前
記出口管(7)と別に設ける必要上、部品点数が増加す
るのであり、しかも、前記継手管(P)をケーシング(
1)にロウ付は溶接で固定する必要があると共に、この
継手’Z (P)にインレットチューブ(K)をロウ付
は溶接で固定し、更に、前記出口管(7)をインレット
チューブ(K)にロウ付は溶接で固定する必要があって
、これらロウ付は溶接箇所も多くなる問題があった。
(Problem to be solved by the invention) However, in the above compressor, the joint pipe (
P) and the casing (1) are welded before the compression element (2) is assembled into the casing (1), and the joint pipe (P) and the inlet tube (K ), and the inlet tube (K
) and the refrigerant outlet pipe (7) is a joint pipe (P
), and the brazing is welded at a relatively distant position from the compression element (2), so that the adverse noise due to heat to the compression element (2) is Although it can be eliminated to some extent, it is an insufficient measure as it simply attempts to reduce the thermal influence transmitted to the compression element (2) by the length of the joint pipe (P).
Furthermore, in the above compressor, when connecting the outlet pipe (7) to the suction port (31), the joint pipe (P) and the inlet tube (K) become necessary parts, and these parts are connected to the outlet pipe. The number of parts increases as it needs to be provided separately from (7), and the joint pipe (P) is connected to the casing (
1), it is necessary to fix the inlet tube (K) to this joint 'Z (P) by welding, and furthermore, the outlet pipe (7) needs to be fixed by welding to the joint 'Z (P). ), it is necessary to fix it by welding, and these brazing methods have the problem of requiring a large number of welded parts.

その上、前記圧縮要素(2)のケーシング(1)への組
込みは、前記継手管(P)の溶接時に加熱された熱の冷
却をまって行なう必要があるため、製造時間が長くなる
と共に、外気条件により冷却時間も変化するため製造時
間が変わり、口産する場合でも、その生産ラインにはの
せにくい問題があった。
Moreover, when the compression element (2) is assembled into the casing (1), it is necessary to cool down the heat generated during welding of the joint pipe (P), which increases the manufacturing time and Since the cooling time also changes depending on the outside air conditions, the manufacturing time changes, and even when produced in bulk, it is difficult to put it on the production line.

本発明は以上のごとき問題に鑑みて成したもので、その
目的は、短時間で溶接可能で、しかも熱発生量が比較的
少ないプロジェクシロン溶接手段に着目し、前記インレ
フトチューブや継手管などを使用することなく、前記ア
キュムレータから延びる出口管を利用して、この出口管
を工夫すると共に前記ケーシングに接続筒体を設けて前
記出口管を前記ケーシングにプロジェクション溶接によ
り固定できるようにして、前記圧縮要素に熱による悪影
響を与えることがな(、シかも部品点数を少なく、かつ
、製造コストを低廉にできる圧縮機を提供することにあ
る。
The present invention was made in view of the above-mentioned problems, and its purpose is to focus on a projection welding method that can be welded in a short time and generates a relatively small amount of heat. By using an outlet pipe extending from the accumulator without using a It is an object of the present invention to provide a compressor that does not have an adverse effect on compression elements due to heat, has a small number of parts, and can be manufactured at low cost.

(問題点を解決するための手段) 本発明の構成は、図面の実施例に示したごとく、ケーシ
ング(,1)に冷媒吸入口(31)をもった圧縮要素(
2)を内装し、前記吸入口(31)をアキュムレータ(
8)に接続するごとくした圧縮機であって、前記ケーシ
ング(1)の側壁における前記吸入口(31)との対応
部位に、接続口(11)を設け、かつ、この接続口(1
1)の周りにおける前記ケーシング(1)の側壁を外方
向に膨出して接続筒体(12)を一体に形成すると共に
、前記アキュムレータ(8)の出口管(7)に、前記筒
体(12)の膨出先端面に対向するフランジ(71)を
形成して、前記出口管(7)を前記筒体(12)から前
記吸入口(31)に挿入し、前記フランジ(71)を前
記筒体(12)にプロジェクション溶接により固定した
ことを特徴とするものである。
(Means for Solving the Problems) As shown in the embodiments of the drawings, the configuration of the present invention includes a compression element (1) having a refrigerant suction port (31) in the casing (1)
2) is installed internally, and the suction port (31) is connected to the accumulator (
8), a connection port (11) is provided in a side wall of the casing (1) at a location corresponding to the suction port (31), and the connection port (11) is connected to the connection port (11).
The side wall of the casing (1) around the casing (1) is bulged outward to integrally form a connecting cylinder (12), and the outlet pipe (7) of the accumulator (8) is connected to the cylinder (12). ), the outlet pipe (7) is inserted from the cylinder body (12) into the suction port (31), and the flange (71) is inserted into the cylinder body (12). It is characterized by being fixed to the body (12) by projection welding.

(作用) 前記圧縮要素(2)の吸入口(31)に、前記アキュム
レータ(8)から延びる出口管(7)を接続するにあた
っては、前記ケーシング(1)に形成した接続口(11
)の外部側から前記出口管(7)を、該出口管(7)に
設けたフランジ(71)が前記接続口(11)の周りに
形成した接続筒体(12)の膨出先端面と対接するごと
く挿入して、この筒体(12)と前記フランジ(71)
との対接部位をプロジェクション溶接手段により固定す
るのである。
(Function) In order to connect the outlet pipe (7) extending from the accumulator (8) to the suction port (31) of the compression element (2), use the connection port (11) formed in the casing (1).
) from the outside of the outlet pipe (7), the flange (71) provided on the outlet pipe (7) meets the bulging tip surface of the connecting cylinder (12) formed around the connecting port (11). Insert the cylindrical body (12) and the flange (71) so that they are in contact with each other.
The contact portion is fixed by projection welding means.

しかして前記筒体(12)の膨出先端面と、これに対す
るフランジ(71)との間に、プロジェクション溶接の
ための加圧面が形成されて、この部分で密なる結合がな
されるのであって、しかも、このプロジェクション溶接
にあっては、瞬間的に溶接可能な高温度まで高められる
もの一1短時間の内に溶接が完了されて、供給熱容量と
しては小さく抑えることができるのであり、従って、前
記圧縮要素(2)に熱による悪影響を与えることは殆ど
なく、シかも従来の継手管やインレットチューブを使用
してロウ付は溶接を行なうものと比べて、部品点数や溶
接箇所を少なくでき、製造コストを低廉となし得るので
ある。
Therefore, a pressurizing surface for projection welding is formed between the bulging tip surface of the cylinder (12) and the flange (71) corresponding thereto, and a tight bond is formed at this portion. Moreover, in this projection welding, the temperature can be raised instantaneously to a high enough temperature for welding, and the welding can be completed within a short time, and the supplied heat capacity can be kept small. There is almost no adverse effect of heat on the compression element (2), and brazing using conventional joint pipes and inlet tubes can reduce the number of parts and welding points compared to welding. This makes it possible to reduce manufacturing costs.

(実施例) 以下本発明にかかる圧縮機を図面の実施例によって説明
する。
(Example) A compressor according to the present invention will be described below with reference to an example shown in the drawings.

第3図は圧縮機例としてロータリ式の圧縮機を示してお
り、ケーシング(1)の内方上部にモータ(M)を配置
すると共に、該モータ(M)の下部位置にクランク軸(
KR)を介して連動連結された圧縮要素(2)を配はし
ている。
FIG. 3 shows a rotary compressor as an example of a compressor, in which a motor (M) is disposed in the upper part of the casing (1), and a crankshaft (
A compression element (2) is disposed which is interlocked and connected via a compressor (KR).

前記圧縮要素(2)は、冷媒吸入口(31)と冷媒圧縮
室(32)を備えたシリンダ(3)と、該シリンダ(3
)の上下部位に固定されたフロントヘッド(4)及びリ
アヘッド(5)と、前記シリンダ(3)の冷媒圧縮室(
32)に回転自由に内装されたローラ(6)とから構成
される。
The compression element (2) includes a cylinder (3) having a refrigerant inlet (31) and a refrigerant compression chamber (32);
), and the refrigerant compression chamber (3) of the cylinder (3).
32) and a roller (6) rotatably installed inside the roller.

また前記ケーシング(1)の側部位置には、冷媒の出口
管(7)をもったアキュムレータ(8)を配置すると共
に、このアキュムレータ(8)を前記出口管(7)を介
して前記シリンダ(3)の吸入口(31)に接続し、前
記出口・管(7)から前記シリンダ(3)の冷媒圧縮室
(32)に供給される冷媒を、前記ローラ(6)の回転
によって圧縮するようにしている。
Further, an accumulator (8) having a refrigerant outlet pipe (7) is disposed at a side position of the casing (1), and the accumulator (8) is connected to the cylinder ( 3) so that the refrigerant supplied from the outlet/pipe (7) to the refrigerant compression chamber (32) of the cylinder (3) is compressed by the rotation of the roller (6). I have to.

しかして以上のごときロータリ式圧縮機において、前記
シリンダ(3)の冷媒吸入口(31)に前記アキュムレ
ータ(8)の出口管(7)を接続するにあたって、次の
ような接続構造としたのである。
Therefore, in the above rotary compressor, the following connection structure was used to connect the outlet pipe (7) of the accumulator (8) to the refrigerant suction port (31) of the cylinder (3). .

即ち、第1図に詳しく示したごとく、前記ケーシング(
1)の下方周壁で、前記シリンダ(3)の冷媒吸入口(
31)との対向部位に、ドリル加工手段などにより下孔
を開設し、この下孔形成部位を前記ケーシング(1)の
内方側から外方に向かってバーリング加工することによ
り、所定大きさの接続口(11)を形成し、これと同時
に該接続口(11)の周りに前記ケーシング(1)の外
方に向けて膨出する接続筒体(12)を一体に形成する
That is, as shown in detail in FIG. 1, the casing (
1) on the lower circumferential wall of the cylinder (3).
31), a pilot hole is formed using a drilling method or the like, and this pilot hole forming region is burred from the inside of the casing (1) to the outside to form a hole of a predetermined size. A connection port (11) is formed, and at the same time, a connection cylinder (12) that bulges outward of the casing (1) is integrally formed around the connection port (11).

前記ケーシング(1)に前記バーリング加工するための
下孔を形成するとき、また該下孔をバーリング加工する
ときには、それぞれ前記ケーシング(1)の内壁側にド
リルやダイスなどを当てがって、このケーシング(1)
の内方側から外方に向かって加工を行うのであり、斯(
するときには前記ドリル加工時やバーリング加工時など
に発生する加工屑が、前記ケーシング(1)の外部側に
排出され、該ケーシング(1)の内部に加工屑が残った
りして、潤滑不良を起こしたりするのを未然に防止でき
るのである。
When forming a pilot hole in the casing (1) for the burring process, and when burring the pilot hole, a drill or die is applied to the inner wall side of the casing (1), and the hole is drilled. Casing (1)
Machining is carried out from the inside to the outside, and thus (
When doing so, machining debris generated during drilling, burring, etc. is discharged to the outside of the casing (1), and machining debris remains inside the casing (1), resulting in poor lubrication. It is possible to prevent this from happening.

尚、この場合、前記ケーシング(1)は円筒形を呈して
いるので、バーリング加工によって得られる前記接続筒
体(12)の端面は第2図(イ)中想像線に示すように
ケーシング(1)の長さ方向(Y軸)とこれに直交する
円筒接線方向(X軸)とでいびつになることが考えられ
るが、同図(ロ)に示す1つにバーリング加工に用いる
パンチ(100)と基台(200)との形伏を工夫する
ことにより、而−に仕上げることができる。
In this case, since the casing (1) has a cylindrical shape, the end surface of the connecting cylinder (12) obtained by burring is similar to the casing (1) as shown in the imaginary line in FIG. ) is likely to be distorted in the longitudinal direction (Y-axis) and in the tangential direction of the cylinder (X-axis) perpendicular to this. By devising the shape of the base and the base (200), it is possible to achieve the desired finish.

即ち、パンチ(100)側のアール(R1)を一定とし
た場合、基台(200)側のアール(R2)を、Y軸側
では実線の如く大きくして裾部(210)への膨らみで
突出長さを抑え込み、又、X軸側では点線の如く小さく
して突出長さをかせぐようにするのである。
In other words, when the radius (R1) on the punch (100) side is constant, the radius (R2) on the base (200) side is increased as shown by the solid line on the Y-axis side to create a bulge toward the hem (210). The protrusion length is suppressed, and the protrusion length is increased by making it smaller as shown by the dotted line on the X-axis side.

また前記アキュムレータ(8)から延びる前記出口管(
7)には、その延出方向端部側に半径方向外方に向かっ
て延びる径大なフランジ(71)を鍛造加工手段などに
より一体に形成するのである。
Further, the outlet pipe (
7), a flange (71) with a large diameter extending radially outward is integrally formed on the end side in the extending direction by forging processing means or the like.

そして前記アキエムレータ(8)から延びる前記出口管
(7)を、前記ケーシング(1)に形成された接続口(
11)の外部側から前記シリンダ(3)の吸入孔(31
)に、前記出口管(7)のフランジ(71)が前記ケー
シング(1)の接続口(11)周りに設けた接続筒体(
12)の膨出先端面に接触するごとく圧入させ、この接
続筒体(12)の膨出先端面と、該筒体(12)に接触
された前記出口管(7)のフランジ(71)との間を、
プロジェクション溶接手段により固定するのである。
Then, connect the outlet pipe (7) extending from the Akiemulator (8) to the connection port (
The suction hole (31) of the cylinder (3) is opened from the outside of the cylinder (3).
), the flange (71) of the outlet pipe (7) is connected to a connecting cylinder (
12), and the flange (71) of the outlet pipe (7) that is in contact with the bulging end surface of the connecting cylinder (12) and the flange (71) of the outlet pipe (7) that is in contact with the connecting cylinder (12). Between the
It is fixed by projection welding means.

次に、プロジェクション溶接手段を採用する理由を、第
4図に基づいて説明する。
Next, the reason for adopting the projection welding means will be explained based on FIG. 4.

即ち、第4図は、縦軸に温度(℃)を、横軸に時間(S
)をとった溶接時の温度曲線を示しており、この図から
明らかな如く、従来のロウ付は溶接手段を採用する場合
、溶接可能温度(830〜950℃)に達するまでに、
25〜30秒間の余熱時間を必要とするのに対して、プ
ロジェクション溶接手段を採用する場合には、高電圧の
印加に伴い、瞬間的には上記高温度(830〜950℃
)を越えるもの\、約0.3〜0.4秒という極めて短
時間で溶接が完了され、供給熱容量としては小さいもの
に抑制することができ、溶接後には温度が急激に低下す
るのであって、従って、プロジェクション溶接手段によ
る熱の発生量は少なく、この熱が前記圧縮要素(2)に
悪影響を与えることは殆どないのである。
That is, in Figure 4, the vertical axis represents temperature (°C), and the horizontal axis represents time (S).
) shows the temperature curve during welding, and as is clear from this figure, when conventional brazing is performed by welding, by the time the welding temperature (830 to 950°C) is reached,
Whereas 25 to 30 seconds of preheating time is required, when projection welding is used, the above high temperature (830 to 950 °C
), welding is completed in an extremely short time of about 0.3 to 0.4 seconds, the heat supply capacity can be kept small, and the temperature drops rapidly after welding. Therefore, the amount of heat generated by the projection welding means is small, and this heat has almost no adverse effect on the compression element (2).

しかして、前記筒体(12)の膨出先端面と、これに対
向するフランジ(71)との間に、プロジェクション溶
接のための加圧面が形成されて、前記接続管(8)の開
放端側からの加圧力付与のもとで、前記筒体(12)と
フランジ(71)との間に高電圧を印加することにより
プロジェクション溶接を行なうのであるが、前記筒体(
12)の形成により前記フランジ(71)との接触面積
を小さくでき、之により加圧力を小さくできると共に印
加電圧も低くでき、プロジェクション溶接に伴う発生#
1量を小さくできるのである。従って、圧縮要素(2)
が熱により悪影響を受けることなく、良好な結合を行な
い得るのである。
Thus, a pressurizing surface for projection welding is formed between the bulging tip surface of the cylinder (12) and the flange (71) opposing thereto, and the open end of the connecting pipe (8) Projection welding is performed by applying a high voltage between the cylindrical body (12) and the flange (71) under pressure applied from the side.
12), it is possible to reduce the contact area with the flange (71), thereby making it possible to reduce the pressing force and the applied voltage, thereby reducing the ## generated during projection welding.
1 amount can be reduced. Therefore, compression element (2)
Good bonding can be achieved without being adversely affected by heat.

また前記アキュムレータ(8)から延びる前記出口管(
7)を、前記ケーシング(1)に形成した接続口(11
)から前記シリンダ(3)の吸入口(31)へと直接挿
入し、前記出口管(7)に形成したフランジ、(71)
と前記接続口(11)の周りに設けた接続筒体(12)
との間を、プロジェクション溶接手段で固定する接続構
造としたことにより、構成部品点数が少なくすみ、しか
も前記筒体(12)と前記フランジ(71)との間を1
箇所だけ溶接すれば良いこととなって、製造コストが著
しく軽減できるのである。
Further, the outlet pipe (
7) is connected to the connection port (11) formed in the casing (1).
) into the inlet (31) of the cylinder (3) and formed on the outlet pipe (7);
and a connection cylinder (12) provided around the connection port (11).
By using a connection structure in which the connection between the cylindrical body (12) and the flange (71) is fixed by projection welding means, the number of component parts can be reduced.
Since it is only necessary to weld at certain points, manufacturing costs can be significantly reduced.

又、以上の実施例は、前記接続口(11)の周りをバー
リング加工により前記筒体(12)を形成したが、バー
リング加工でなく打出加工により前記接続口(11)の
周りを山形に突出させて形成してもよい。
Further, in the above embodiments, the cylindrical body (12) was formed by burring around the connection port (11), but the cylindrical body (12) was formed around the connection port (11) in a chevron shape by punching instead of burring. It may also be formed by

又、前記出口管(7)の吸入口(31)への接続は圧入
によったが、圧入によることなく遊嵌状に挿入してもよ
い。
Further, although the outlet pipe (7) is connected to the suction port (31) by press-fitting, it may be inserted in a loose-fitting manner without being press-fitted.

圧入によれば、シール性に対し良好な結果が得られるが
、遊嵌する場合0リングなどのシール部材を用いればよ
い。
Press-fitting provides good sealing performance, but when loosely fitting, a sealing member such as an O-ring may be used.

また、圧入する場合、前記フランジ(71)がストッパ
ーとなり、前記吸入口(31)への圧入代を正確に管理
できる。
Further, when press-fitting, the flange (71) serves as a stopper, and the press-fitting amount into the suction port (31) can be accurately controlled.

また、前記吸入口(31)はストレート形伏としている
がテーパ状としてもよい。又、前記筒体(12)の端部
はその全周面にわたって同一垂直平面に位置するように
形成してもよいが、ケーシング(1)の曲面に対応して
多少湾曲したま−となっていてもよい。この場合、前記
出口管(7)に設ける前記フランジ(9)の前記筒体(
12)への対向面は、この筒体(12)の端部形杖に合
わせて湾曲状に形成すればよい。
Further, although the suction port (31) has a straight shape, it may have a tapered shape. Further, the end of the cylinder (12) may be formed so as to lie on the same vertical plane over its entire circumferential surface, but it may be formed into a shape that is slightly curved to correspond to the curved surface of the casing (1). It's okay. In this case, the cylindrical body (
12) may be formed into a curved shape to match the end shape of the cylinder (12).

(発明の効果) 以上説明したごとく本発明にかかる圧縮機では、冷媒吸
入口(31)をもった圧縮要素(2)を内装したケーシ
ング(1)の側壁で、前記圧縮要素(2)の吸入口(3
1)との対応部位に、接続口(11)を設け、かつ該接
続口(11)周りにおける前記ケーシング(1)の側壁
を外方向に膨出することにより接続筒体(12)を一体
に形成すると共に、前記ケーシング(1)の側部に配置
されるアキュムレータ(8)の出口管(7)に、前記筒
体(12)の膨出先端面に対向する7ランジ(71)を
形成して、前記出口管(7)を前記筒体(12)を経て
前記吸入口(31)へと挿入し、前記フランジ(71)
と前記筒体(12)との対接部位をプロジェクション溶
接により固定するようにしたから、前記出口管(7)を
ケーシング(1)に固定するとき、溶接時の熱により前
記圧縮要素(2)が歪んだりすることはなく、熱による
影響を解消できながら、前記出口管(7)のケーシング
(1)への固定時間を短縮できるし、しかも、従来例の
ように継手管を予めケーシング(1)に溶接し、冷却を
まってモータと圧縮要□素との組付体を組込む場合に比
較して工程を大幅に短縮できるし、冷却をまって前記組
付体を組込むものでないから、外気条件に関係なく工程
時間の正確な管理が可能となり、従って、量産する場合
でも生産ラインにのせられ、それだけ製造コストも低く
できるのである。
(Effects of the Invention) As explained above, in the compressor according to the present invention, the side wall of the casing (1) in which the compression element (2) having the refrigerant suction port (31) is installed is used to inhale the compression element (2). Mouth (3
1), and by bulging the side wall of the casing (1) outward around the connection port (11), the connection cylinder (12) is integrated. At the same time, a seven flange (71) is formed in the outlet pipe (7) of the accumulator (8) disposed on the side of the casing (1), facing the bulging tip surface of the cylinder (12). Then, the outlet pipe (7) is inserted into the suction port (31) through the cylinder body (12), and the flange (71)
Since the abutting portions of the cylindrical body (12) and the cylindrical body (12) are fixed by projection welding, when the outlet pipe (7) is fixed to the casing (1), the compression element (2) is It is possible to reduce the fixing time of the outlet pipe (7) to the casing (1) while eliminating the influence of heat. ) and wait for cooling before assembling the assembly of the motor and compression element □, the process can be significantly shortened. It is possible to accurately control the process time regardless of the conditions, and therefore, even in mass production, it can be placed on the production line, and the manufacturing cost can be reduced accordingly.

その上、前記吸入孔(31)に挿入する出口管(7)に
、前記ケーシング(1)の接続口(11)周りの外側周
面に接触するフランジ(7りを設けて、プロジェクショ
ン溶接が行なえるようにしたから、従来例では必要部品
であった継手管やインレットチューブを用いる必要もな
くし得るのであり、この結果部品点数も減少できるし、
しかも、前記継手管やインレットチューブをロウ付け溶
接する必要もないので、溶接箇所も絨少できるのであっ
て、これによっても製造コストを低廉化できるのである
Furthermore, the outlet pipe (7) inserted into the suction hole (31) is provided with a flange (7) that contacts the outer peripheral surface around the connection port (11) of the casing (1), so that projection welding can be performed. This eliminates the need to use joint pipes and inlet tubes, which were necessary parts in the conventional example, and as a result, the number of parts can be reduced.
Moreover, since there is no need to braze and weld the joint pipe or inlet tube, the number of welded parts can be reduced, and the manufacturing cost can also be reduced.

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

第1図は本発明にかかる圧縮機の要部を示す断面図、第
2図は接続口周りの加工説明図、第3図は同圧縮機の全
体構造を示す縦断面図、第4図は溶接時の温度曲線を示
す図面、第5図は従来の製造例を示す図面である。 (1)・・・・・ケーシング (11)・・・・接続口 (12)@・・・接続筒体 (2)・・・・・圧縮要素 (31)・・・・吸入孔 (7)・・・・・出口管 (8)・・・・・アキュムレータ (71)・・・・フランジ
Fig. 1 is a sectional view showing the main parts of the compressor according to the present invention, Fig. 2 is an explanatory diagram of processing around the connection port, Fig. 3 is a longitudinal sectional view showing the overall structure of the compressor, and Fig. 4 is A drawing showing a temperature curve during welding, and FIG. 5 is a drawing showing a conventional manufacturing example. (1)...Casing (11)...Connection port (12)@...Connection cylinder (2)...Compression element (31)...Suction hole (7) ...Outlet pipe (8) ...Accumulator (71) ...Flange

Claims (1)

【特許請求の範囲】[Claims] (1)ケーシング(1)に冷媒吸入口(31)をもった
圧縮要素(2)を内装し、前記吸入口(31)をアキュ
ムレータ(8)に接続するごとくした圧縮機であって、
前記ケーシング(1)の側壁における前記吸入口(31
)との対応部位に、接続口(11)を設け、かつ、この
接続口(11)の周りにおける前記ケーシング(1)の
側壁を外方向に膨出して接続筒体(12)を一体に形成
すると共に、前記アキュムレータ(8)の出口管(7)
に、前記筒体(12)の膨出先端面に対向するフランジ
(71)を形成して、前記出口管(7)を前記筒体(1
2)から前記吸入口(31)に挿入し、前記フランジ(
71)を前記筒体(12)にプロジェクション溶接によ
り固定していることを特徴とする圧縮機。
(1) A compressor in which a compression element (2) having a refrigerant suction port (31) is installed in a casing (1), and the suction port (31) is connected to an accumulator (8),
The suction port (31) in the side wall of the casing (1)
), and a connecting cylinder (12) is integrally formed by providing a connecting port (11) at a location corresponding to the connecting port (11), and bulging the side wall of the casing (1) outward around the connecting port (11). At the same time, the outlet pipe (7) of the accumulator (8)
A flange (71) facing the bulging tip surface of the cylindrical body (12) is formed to connect the outlet pipe (7) to the cylindrical body (1).
2) into the suction port (31), and insert the flange (
71) is fixed to the cylindrical body (12) by projection welding.
JP62151625A 1987-06-18 1987-06-18 Compressor Expired - Lifetime JPH07117043B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62151625A JPH07117043B2 (en) 1987-06-18 1987-06-18 Compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62151625A JPH07117043B2 (en) 1987-06-18 1987-06-18 Compressor

Publications (2)

Publication Number Publication Date
JPS63314383A true JPS63314383A (en) 1988-12-22
JPH07117043B2 JPH07117043B2 (en) 1995-12-18

Family

ID=15522633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62151625A Expired - Lifetime JPH07117043B2 (en) 1987-06-18 1987-06-18 Compressor

Country Status (1)

Country Link
JP (1) JPH07117043B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0533771A (en) * 1991-07-30 1993-02-09 Daikin Ind Ltd Compressor and manufacture thereof
US6254365B1 (en) 1999-05-26 2001-07-03 Funai Electric Co., Ltd. Compressor
EP1359324A2 (en) * 1998-12-15 2003-11-05 Matsushita Electric Industrial Co., Ltd. Sealed type compressor
JP2006342676A (en) * 2005-06-07 2006-12-21 Matsushita Electric Ind Co Ltd Hermetic compressor
JP2008208733A (en) * 2007-02-23 2008-09-11 Mitsubishi Electric Corp Pressure vessel body of refrigerating cycle device and its manufacturing method, and method for connecting pipe to vessel
CN104165143A (en) * 2014-08-05 2014-11-26 广东美芝制冷设备有限公司 Compressor assembly
CN104165143B (en) * 2014-08-05 2016-11-30 广东美芝制冷设备有限公司 Compressor assembly
CN107476958A (en) * 2017-09-22 2017-12-15 刘悦吟 A kind of compressor air suction structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5176617A (en) * 1974-12-27 1976-07-02 Hitachi Ltd ZENMIT SUPEIGATADENDOATSUSHUKUKI
JPS586978U (en) * 1981-07-06 1983-01-17 三洋電機株式会社 Piping connection device for hermetic compressor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5176617A (en) * 1974-12-27 1976-07-02 Hitachi Ltd ZENMIT SUPEIGATADENDOATSUSHUKUKI
JPS586978U (en) * 1981-07-06 1983-01-17 三洋電機株式会社 Piping connection device for hermetic compressor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0533771A (en) * 1991-07-30 1993-02-09 Daikin Ind Ltd Compressor and manufacture thereof
EP1359324A2 (en) * 1998-12-15 2003-11-05 Matsushita Electric Industrial Co., Ltd. Sealed type compressor
EP1359324A3 (en) * 1998-12-15 2004-01-14 Matsushita Electric Industrial Co., Ltd. Sealed type compressor
US6254365B1 (en) 1999-05-26 2001-07-03 Funai Electric Co., Ltd. Compressor
JP2006342676A (en) * 2005-06-07 2006-12-21 Matsushita Electric Ind Co Ltd Hermetic compressor
JP2008208733A (en) * 2007-02-23 2008-09-11 Mitsubishi Electric Corp Pressure vessel body of refrigerating cycle device and its manufacturing method, and method for connecting pipe to vessel
CN104165143A (en) * 2014-08-05 2014-11-26 广东美芝制冷设备有限公司 Compressor assembly
CN104165143B (en) * 2014-08-05 2016-11-30 广东美芝制冷设备有限公司 Compressor assembly
CN107476958A (en) * 2017-09-22 2017-12-15 刘悦吟 A kind of compressor air suction structure
CN107476958B (en) * 2017-09-22 2023-09-19 刘悦吟 Air suction structure of compressor

Also Published As

Publication number Publication date
JPH07117043B2 (en) 1995-12-18

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