JPH0988848A - Enclosed fluid machinery - Google Patents
Enclosed fluid machineryInfo
- Publication number
- JPH0988848A JPH0988848A JP24412695A JP24412695A JPH0988848A JP H0988848 A JPH0988848 A JP H0988848A JP 24412695 A JP24412695 A JP 24412695A JP 24412695 A JP24412695 A JP 24412695A JP H0988848 A JPH0988848 A JP H0988848A
- Authority
- JP
- Japan
- Prior art keywords
- partition wall
- casing body
- flange portion
- casing
- pressure side
- 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
Landscapes
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、圧縮機構を内装す
る密閉ケーシング内に、高低差圧のある高圧側室と低圧
側室とを区画する仕切壁を横断状に設けた密閉形流体機
械に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetically sealed fluid machine in which a partition wall for partitioning a high-pressure side chamber and a low-pressure side chamber having high and low differential pressures is provided in a closed casing having a compression mechanism.
【０００２】[0002]
【従来の技術】従来、この種密閉形流体機械は、例えば
特開平４ー２４１７０２号公報に記載され、かつ、図７
に示すように、密閉ケーシングＡのケーシング胴部Ａ１
とケーシングトップＡ２との接合部位に、内部を上下に
区画する仕切壁Ｂを横断状に介装して、この仕切壁Ｂで
画成される下部側に、固定及び可動スクロールＣ１，Ｃ
２から成る圧縮機構ＣとモータＭを内装し、吸入管Ｄが
開口する低圧室Ｅを形成すると共に、上部側には、前記
固定スクロールＣ１の吐出口Ｃ３を開放し、外部吐出管
Ｆが開口する高圧室Ｇを形成して、前記吸入管Ｄから低
圧室Ｅに吸入された低圧作動流体を圧縮機構Ｃに吸入
し、該圧縮機構Ｃで圧縮した高圧作動流体を前記吐出口
Ｃ３から高圧室Ｇに吐出させ、前記吐出管Ｆから外部に
取出すようにしている。2. Description of the Related Art Conventionally, this type of hermetically sealed fluid machine is described in, for example, Japanese Patent Application Laid-Open No. 4-241702, and FIG.
As shown in FIG.
A partition wall B that divides the interior into upper and lower parts is provided at the joint between the casing and the casing top A2 in a transverse manner, and fixed and movable scrolls C1 and C are provided on the lower side defined by the partition wall B.
A low pressure chamber E in which a suction pipe D is opened is formed by incorporating a compression mechanism C composed of two and a motor M, and a discharge port C3 of the fixed scroll C1 is opened and an external discharge pipe F is opened on the upper side. To form a high-pressure chamber G, the low-pressure working fluid sucked from the suction pipe D into the low-pressure chamber E is sucked into the compression mechanism C, and the high-pressure working fluid compressed by the compression mechanism C is discharged from the discharge port C3 into the high-pressure chamber. G is discharged to the outside through the discharge pipe F.
【０００３】また、前記高，低圧室Ｇ，Ｅを画成する仕
切壁Ｂは、前記ケーシング胴部Ａ１側に向かって延びる
傾斜フランジ部Ｂ１を備え、該フランジ部Ｂ１の径方向
外方部位に、曲げ加工により下方に屈曲する屈曲部Ｂ２
を形成し、この屈曲部Ｂ２の下端側には、前記ケーシン
グ胴部Ａ１の上端面に当接して、前記高，低圧室Ｇ，Ｅ
間の差圧により前記仕切壁Ｂが低圧室Ｅ側に移動するの
を阻止する受止面Ｂ３を形成している。The partition wall B which defines the high and low pressure chambers G and E is provided with an inclined flange portion B1 extending toward the casing body portion A1 side, and at a radially outer portion of the flange portion B1. , B2 that bends downward by bending
Is formed on the lower end side of the bent portion B2, and abuts on the upper end surface of the casing body portion A1 to form the high and low pressure chambers G and E.
A receiving surface B3 is formed to prevent the partition wall B from moving to the low pressure chamber E side due to the pressure difference therebetween.
【０００４】そして、前記ケーシングトップＡ２内に前
記仕切壁Ｂの屈曲部Ｂ２外周全面が密接するように焼き
嵌めにより固定すると共に、この仕切壁Ｂの受止面Ｂ３
を前記ケーシング胴部Ａ１の端面に当接させた状態で、
該胴部Ａ１とケーシングトップＡ２との嵌合部位を溶接
Ｗにより固着接合するようにしている。Then, the inside of the casing top A2 is fixed by shrink fitting so that the entire outer circumference of the bent portion B2 of the partition wall B is in close contact, and the receiving surface B3 of the partition wall B is fixed.
In a state of being brought into contact with the end surface of the casing body A1,
The fitting portion between the body portion A1 and the casing top A2 is fixedly joined by welding W.
【０００５】[0005]
【発明が解決しようとする課題】ところが、以上の構成
では、前記高圧室Ｇの高圧圧力が仕切壁Ｂに付与され、
高，低圧室Ｇ，Ｅ間の差圧により前記仕切壁Ｂが低圧室
Ｅ側へと押されて撓むとき、その撓みに伴い前記屈曲部
Ｂ２において曲げモーメントが発生し、該屈曲部Ｂ２に
応力集中が起こって、前記仕切壁Ｂの強度低下を招く不
具合があり、しかも、この仕切壁Ｂの撓みにより、該仕
切壁Ｂの受止面Ｂ３と前記ケーシング胴部Ａ１との間及
び仕切壁Ｂの屈曲Ｂ２側面とケーシングトップＡ２との
間に隙間が生じて、前記高圧室Ｇから低圧室Ｅ側への流
体漏れが発生することもあった。However, in the above configuration, the high pressure of the high pressure chamber G is applied to the partition wall B,
When the partition wall B is pushed toward the low pressure chamber E side by the differential pressure between the high and low pressure chambers G and E and bends, a bending moment is generated in the bending portion B2 along with the bending, and the bending moment is generated in the bending portion B2. There is a problem that stress concentration occurs and the strength of the partition wall B is reduced. Moreover, due to the bending of the partition wall B, the space between the receiving surface B3 of the partition wall B and the casing body A1 and the partition wall A gap may be formed between the side surface of the bent B2 of B and the casing top A2, causing fluid leakage from the high pressure chamber G to the low pressure chamber E side.
【０００６】本発明の主な目的は、仕切壁に曲げ加工を
施すことなく、該仕切壁に付与される高圧圧力を簡単な
構造で確実に受け止め、かつ、この仕切壁の強度強化を
図って信頼性を高めることにあり、また、他の目的は、
高圧側室の高圧作動流体が仕切壁から低圧側室に漏れる
のを確実に阻止することにある。The main object of the present invention is to reliably receive the high pressure applied to the partition wall with a simple structure without bending the partition wall, and to strengthen the partition wall. To increase credibility, and for other purposes,
It is to reliably prevent the high pressure working fluid in the high pressure side chamber from leaking from the partition wall to the low pressure side chamber.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、請求項１記載の発明は、密閉ケーシング１における
ケーシング胴部１１とケーシングトップ１２との接合部
位に、高圧側室８２と低圧側室８４とを区画する仕切壁
７を横断状に介装した密閉形流体機械において、仕切壁
７の径方向外方側部位に、裾部が連続状にケーシング胴
部１１側に向かって拡がる傾斜フランジ部７１を設け
て、このフランジ部７１の裾部に、ケーシング胴部１１
の頂部に当接して仕切壁７の外方への拡がりを阻止する
当接部７２を設けると共に、前記フランジ部７１の裾端
をケーシング胴部１１の外面と隣接させて外部に臨ま
せ、これらフランジ部７１の裾端とケーシング胴部１１
外面との間に溶接部９を形成した。In order to achieve the above object, the invention according to claim 1 has a high-pressure side chamber 82 and a low-pressure side chamber 84 at the joint portion between the casing body 11 and the casing top 12 in the closed casing 1. In a sealed fluid machine in which a partition wall 7 for partitioning the partition wall is provided in a transverse shape, a sloping flange portion 71 having a skirt continuously extending toward the casing body portion 11 side at a radially outer side portion of the partition wall 7. And the casing body 11 is provided at the hem of the flange 71.
Is provided with an abutting portion 72 that abuts on the top of the partition wall 7 to prevent the partition wall 7 from spreading outward, and the hem end of the flange portion 71 is adjacent to the outer surface of the casing body 11 to face the outside. The hem end of the flange portion 71 and the casing body portion 11
A weld 9 was formed between the outer surface and the outer surface.
【０００８】以上の構成によれば、前記仕切壁７に高圧
側室８２の高圧圧力が付与されて、該高圧側室８２と低
圧側室８４との差圧により、前記仕切壁７のフランジ部
７１が低圧側室８４へと押されて径方向外方に拡がろう
とするとき、この拡がり方向の力を、前記フランジ部７
１の当接部７３を前記ケーシング胴部１１の頂部に当接
させることにより確実に受け止め、また、前記力をケー
シング胴部１１の外面とフランジ部７１の裾端とを固定
する溶接部９によっても確実に受け止めることができる
ので、従来のように、仕切壁の径方向外方部位に、ケー
シング胴部の頂部に当接する受止面を設けるために屈曲
部を別途形成することなく、前記仕切壁７の強度を構造
簡単としながら強化できて信頼性を高めることができ、
しかも、これらのことから前記仕切壁７の全体を均一な
薄肉とすることもできる。According to the above construction, the high pressure of the high pressure side chamber 82 is applied to the partition wall 7, and the differential pressure between the high pressure side chamber 82 and the low pressure side chamber 84 causes the flange portion 71 of the partition wall 7 to have a low pressure. When it is pushed into the side chamber 84 and tries to expand outward in the radial direction, the force in the expanding direction is applied to the flange portion 7.
The contact portion 73 of No. 1 is reliably received by contacting the top portion of the casing body portion 11 with the welding portion 9 for fixing the force to the outer surface of the casing body portion 11 and the hem end of the flange portion 71. Since it is possible to reliably receive even the above, the partition wall is not formed separately as in the conventional case, because the receiving surface that abuts on the top of the casing body is provided at the radially outer portion of the partition wall. The strength of the wall 7 can be strengthened while the structure is simple and the reliability can be increased.
Moreover, from these facts, the entire partition wall 7 can be made uniform and thin.
【０００９】請求項２記載の発明では、請求項１記載の
発明において、傾斜フランジ部７１とケーシング胴部１
１との間の溶接部９に、ケーシングトップ１２の端部を
臨ませている。According to a second aspect of the invention, in the first aspect of the invention, the inclined flange portion 71 and the casing body portion 1 are provided.
The end of the casing top 12 faces the welded portion 9 between the casing 1 and the welded portion 1.
【００１０】以上の構成によれば、仕切壁７のフランジ
部７１とケーシング胴部１１及びケーシングトップ１２
が、それぞれ溶接部９により固着一体化されるので、前
記高圧側室８２の高圧作動流体が低圧側室８４に漏れる
のを確実に阻止することができる。According to the above configuration, the flange portion 71 of the partition wall 7, the casing body portion 11 and the casing top 12 are formed.
However, since they are fixedly integrated by the welded portions 9, it is possible to reliably prevent the high-pressure working fluid in the high-pressure side chamber 82 from leaking to the low-pressure side chamber 84.
【００１１】[0011]
【発明の実施の形態】図１は密閉形流体機械としてスク
ロール圧縮機を示し、密閉ケーシング１の内方上部側に
圧縮機構２を、また、内方下部側にモータＭを配設して
おり、前記圧縮機構２は、固定スクロール３と公転スク
ロール４とを備え、これら各スクロール３，４に突設し
た渦巻体３１，４１が互いに噛合うように上下対接させ
て架構５に支持している。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a scroll compressor as a hermetically sealed fluid machine, in which a compression mechanism 2 is arranged on the upper inner side of a hermetic casing 1, and a motor M is arranged on the lower inner side. The compression mechanism 2 includes a fixed scroll 3 and an orbiting scroll 4, and the scrolls 31 and 41 projecting from the scrolls 3 and 4 are vertically supported so as to mesh with each other and supported by the frame 5. There is.
【００１２】また、前記公転スクロール４には、前記モ
ータＭから延びる駆動軸６を連動連結させると共に、前
記固定スクロール３の背面には、前記各渦巻体３１，４
１間の圧縮室９０に連通する吐出口３２が開口し、該吐
出口３２から吐出される高圧作動流体の高圧通路３３を
もつボス部３４を突設している。A drive shaft 6 extending from the motor M is interlockingly connected to the revolution scroll 4, and the spiral bodies 31, 4 are provided on the back surface of the fixed scroll 3.
A discharge port 32 communicating with the compression chamber 90 between the two is opened, and a boss portion 34 having a high pressure passage 33 for the high pressure working fluid discharged from the discharge port 32 is provided in a protruding manner.
【００１３】さらに、前記密閉ケーシング１は、上下方
向に長尺なケーシング胴部１１と、該胴部１１の上下部
位に接合一体化したケーシングトップ１２及びケーシン
グボトム１３とから成り、これらケーシング胴部１１と
ケーシングトップ１２との接合部位で前記固定スクロー
ル３の上部側には、仕切壁７を横断状に介装させて、こ
の仕切壁７により、前記固定スクロール２の高圧通路３
３が開放され、外部吐出管８１が開口する高圧側室８２
と、吸入管８３が開口し、前記圧縮機構２やモータＭが
配設される低圧側室８４とに区画している。Further, the closed casing 1 is composed of a casing body 11 which is elongated in the vertical direction, and a casing top 12 and a casing bottom 13 which are integrally joined to the upper and lower portions of the body 11, respectively. A partition wall 7 is provided across the upper portion of the fixed scroll 3 at the joint portion between the casing 11 and the casing top 12, and the high pressure passage 3 of the fixed scroll 2 is provided by the partition wall 7.
3 is opened and the high pressure side chamber 82 in which the external discharge pipe 81 is opened
And the suction pipe 83 is opened to divide into a low pressure side chamber 84 in which the compression mechanism 2 and the motor M are arranged.
【００１４】そして、前記モータＭの駆動に伴う駆動軸
６の回転で前記公転スクロール４を固定スクロール３に
対し公転駆動させることにより、前記吸入管８３から低
圧側室８４に吸入された低圧作動流体を前記各スクロー
ル３，４間の圧縮室９０に吸入して圧縮し、圧縮後の高
圧作動流体を前記吐出口３２から高圧通路３３を経て高
圧側室８２に吐出させ、前記吐出管８１からケーシング
１の外部に取出すのである。The revolution shaft 4 is revolved with respect to the fixed scroll 3 by the rotation of the drive shaft 6 associated with the drive of the motor M, so that the low pressure working fluid sucked from the suction pipe 83 into the low pressure side chamber 84 is discharged. The compressed high-pressure working fluid is sucked into the compression chamber 90 between the scrolls 3 and 4 and discharged, and the compressed high-pressure working fluid is discharged from the discharge port 32 to the high-pressure side chamber 82 through the discharge pipe 81 and the casing 1. Take it out.
【００１５】しかして、前記仕切壁７を前記ケーシング
胴部１１とケーシングトップ１２との接合部位に取付け
るに際して、次の構造を採用する。Therefore, when the partition wall 7 is attached to the joint portion between the casing body 11 and the casing top 12, the following structure is adopted.
【００１６】即ち、前記仕切壁７は、中心部に前記固定
スクロール３のボス部３４に嵌合する筒状嵌合部７０を
備え、該嵌合部７０の径方向外方部位に、前記ケーシン
グ胴部１１側へと拡がり、かつ、前記高圧側室８２に向
かって膨出する球殻形状とされたフランジ部７１を一体
形成すると共に、このフランジ部７１の裾端には、前記
ケーシング胴部１１の頂部側へ前記フランジ部７１の径
方向外方への拡がり方向へ向かって当接して、前記仕切
壁７の径方向外方への拡がりを阻止する当接部７２を形
成する一方、前記フランジ部７１の裾端一部をケーシン
グ胴部１１の外壁面と隣接させて外部に露出させて、ケ
ーシング胴部１１と共に溶接することにより溶接部９を
形成するのである。That is, the partition wall 7 is provided with a cylindrical fitting portion 70 which fits into the boss portion 34 of the fixed scroll 3 at the center thereof, and the casing is provided at a radially outer portion of the fitting portion 70. A spherical shell-shaped flange portion 71 that expands toward the body portion 11 side and bulges toward the high-pressure side chamber 82 is integrally formed, and the casing body portion 11 is formed at the hem end of the flange portion 71. The abutment portion 72 that abuts on the top side of the flange portion 71 in the outward radial direction of the flange portion 71 to form an abutment portion 72 that prevents the outward extension of the partition wall 7 in the radial direction. The welded portion 9 is formed by exposing a part of the hem end of the portion 71 to the outside of the casing body 11 so as to be exposed to the outside and welding together with the casing body 11.
【００１７】具体的には、図２に示すように、前記当接
部７２として、前記フランジ部７１の裾端に、前記ケー
シング胴部１１の頂面１１ａに対接する第１当接面７２
ａと、前記頂面１１ａ近くの内壁面１１ｂに対接する第
２当接面７２ｂとを断面概略Ｌ形状に切欠形成すると共
に、前記フランジ部７１の裾端外面には、前記第１，第
２当接面７２ａ，７２ｂを前記頂面１１ａ及び内壁面１
１ｂに対接させたとき、前記ケーシング胴部１１の外壁
面１１ｃと面一となる外端面７１ａを形成して、これら
外端面７１ａと外壁面１１ｃとを外部に露出させて溶接
することにより溶接部９を形成する。Specifically, as shown in FIG. 2, as the contact portion 72, a first contact surface 72 that contacts the top surface 11a of the casing body 11 at the hem end of the flange portion 71.
a and a second contact surface 72b that is in contact with the inner wall surface 11b near the top surface 11a are notched to have a substantially L-shaped cross section, and the hem end outer surface of the flange portion 71 has the first and second The contact surfaces 72a and 72b are the top surface 11a and the inner wall surface 1.
Welding by forming an outer end surface 71a that is flush with the outer wall surface 11c of the casing body portion 11 when contacted with 1b, exposing the outer end surface 71a and the outer wall surface 11c to the outside, and welding. Form part 9.
【００１８】また、前記ケーシングトップ１２は、その
脚部１２ａの外径を前記フランジ部７１の外径よりもや
や大径に形成して、この脚部１２ａの下端内方側に前記
フランジ部７１の裾端上面側に対接する対接面１２ｂを
切欠形成すると共に、前記脚部１２ａの下端側には、前
記対接面１２ｂを前記フランジ部７１の裾端上面側に対
接させたとき、前記ケーシング胴部１１の外壁面１１ｃ
と前記フランジ部７１の外端面７１ａとに隣接して外部
に開放される下端面１２ｃを形成する。そして、前記ケ
ーシング胴部１１の外壁面１１ｃと、前記フランジ部７
１の外端面７１ａと、前記脚部１２ａの下端面１２ｃと
の３個所を同時に溶接して、この溶接部９により各者を
固着一体化するのである。Further, the casing top 12 is formed such that the outer diameter of the leg portion 12a thereof is slightly larger than the outer diameter of the flange portion 71, and the flange portion 71 is provided inside the lower end of the leg portion 12a. The contact surface 12b that contacts the hem end upper surface side of is cut out, and when the contact surface 12b is made to contact the hem end upper surface side of the flange portion 71 on the lower end side of the leg portion 12a, Outer wall surface 11c of the casing body 11
And a lower end surface 12c that is open to the outside is formed adjacent to the outer end surface 71a of the flange portion 71. Then, the outer wall surface 11c of the casing body 11 and the flange portion 7
One outer end surface 71a and the lower end surface 12c of the leg portion 12a are simultaneously welded at three points, and the welded portions 9 fix and integrate each person.
【００１９】以上の構成によれば、前記高圧側室８２の
高圧圧力で前記仕切壁７のフランジ部７１が下方側へと
押されるとき、その下方側への押圧力で、該フランジ部
７１は径方向外方へと拡がろうとする。このとき、前記
フランジ部７１の第１当接面７２ａを前記ケーシング胴
部１１の頂面１１ａで受止め、前記フランジ部７１の第
２当接面７２ｂを前記胴部１１ａの内壁面１１ｂにより
受止めることができ、しかも、前記胴部１１の外壁面１
１ｃと前記フランジ部７１の外端面７１ａとは外部露出
されて溶接部９により固着一体化され、この溶接部９に
より、前記フランジ部７１と胴部１１との固定が確実に
行えるので、前記仕切壁９に屈曲部を設けることなく、
該仕切壁７の取付強度を大幅に強化できて信頼性を高め
ることができる。According to the above construction, when the flange portion 71 of the partition wall 7 is pushed downward by the high pressure of the high pressure side chamber 82, the downward pushing force of the flange portion 71 causes the diameter of the flange portion 71. Attempts to spread outward in the direction. At this time, the first contact surface 72a of the flange 71 is received by the top surface 11a of the casing body 11, and the second contact surface 72b of the flange 71 is received by the inner wall surface 11b of the body 11a. The outer wall surface 1 of the body portion 11 can be stopped.
1c and the outer end surface 71a of the flange portion 71 are exposed to the outside and fixedly integrated by a welding portion 9, and the welding portion 9 can securely fix the flange portion 71 and the body portion 11 to each other. Without providing a bent portion on the wall 9,
The mounting strength of the partition wall 7 can be significantly enhanced and the reliability can be enhanced.
【００２０】その上、前記フランジ部７１は高圧側室８
２に向かって膨出する球殻形状とされ、前記フランジ部
７１に付与される押圧力を、その内部で互いに球面方向
に押し合う面内圧縮力として受止めることができるの
で、前記仕切壁７の撓み量を少なくできながら、該仕切
壁７の一部に応力集中を招くことなく、この仕切壁７の
強度を一層強化できて信頼性を更に向上させることがで
きる。In addition, the flange portion 71 is the high pressure side chamber 8
2, the pressing force applied to the flange portion 71 can be received as an in-plane compression force that pushes each other in the spherical direction, so that the partition wall 7 While the amount of bending of the partition wall 7 can be reduced, the strength of the partition wall 7 can be further strengthened without causing stress concentration on a part of the partition wall 7, and the reliability can be further improved.
【００２１】以上のことから、前記仕切壁７を全体均一
に薄肉化することもできて、前記仕切壁７として板金製
のものを使用することも可能となる。尚、前記フランジ
部７１は、必ずしも球殻形状とする必要はなく、このフ
ランジ部７１は前記筒状嵌合部７０から前記ケーシング
胴部１１側に向かって斜め下方に直線状に延びる傾斜壁
で形成することもできる。From the above, the partition wall 7 can be made evenly thin throughout, and the partition wall 7 made of sheet metal can be used. The flange portion 71 does not necessarily have to have a spherical shell shape, and the flange portion 71 is an inclined wall that linearly extends obliquely downward from the tubular fitting portion 70 toward the casing body 11 side. It can also be formed.
【００２２】また、前記ケーシング胴部１１の外壁面１
１ｃと前記フランジ部７１の外端面７１ａ及び前記脚部
１２ａの下端面１２ｃをそれぞれ外部露出させて、前記
溶接部９により固着一体化することにより、前記高圧側
室８２の高圧圧力で前記仕切壁７が撓むことがあって
も、この仕切壁７とケーシングトップ１２との間が溶接
で確実にシールされるから、該仕切壁７で高，低圧室８
２，８４間を確実に画成して、この高圧側室８２の高圧
作動流体が低圧側室８４に漏れるのを確実に阻止でき
る。The outer wall surface 1 of the casing body 11
1c, the outer end surface 71a of the flange portion 71 and the lower end surface 12c of the leg portion 12a are exposed to the outside and fixedly integrated by the welded portion 9, so that the partition wall 7 is pressurized by the high pressure of the high pressure side chamber 82. Even if the partition wall is bent, the partition wall 7 and the casing top 12 are reliably sealed by welding.
It is possible to reliably define the space between the second and the second chambers 84 and reliably prevent the high pressure working fluid in the high pressure side chamber 82 from leaking to the low pressure side chamber 84.
【００２３】さらに、前記仕切壁７の取付強度を強化し
て信頼性を高めるためには、図３に示すように、前記当
接部７２として、前記仕切壁７におけるフランジ部７１
の裾端に、前記ケーシング胴部１１の頂面１１ａ近くの
内壁面１１ｂに対接する第３当接面７２ｃを形成すると
共に、前記フランジ部７１の裾端外面には、前記当接面
７２ｃを前記内壁面１１ｂに対接させたとき、前記胴部
１１の頂面１１ａと所定角度を開けて対向し、この頂面
１１ａと共に外部に露出する外端面７１ｂを形成すると
共に、前記ケーシングトップ１２における脚部１２ａの
下部側に、前記フランジ部７１の裾端上面に沿って対接
する屈曲部１２ｄを設けて、この屈曲部１２ｄの先端側
には、前記フランジ部７１の外端面７１ｂと面一状とさ
れて外部露出する外端面１２ｅを形成するようにしても
よい。Further, in order to strengthen the attachment strength of the partition wall 7 and enhance the reliability, as shown in FIG. 3, the abutment portion 72 is the flange portion 71 of the partition wall 7.
A third contact surface 72c that contacts the inner wall surface 11b near the top surface 11a of the casing body 11 is formed at the hem end of the casing body 11, and the contact surface 72c is formed on the hem end outer surface of the flange portion 71. When facing the inner wall surface 11b, it faces the top surface 11a of the body portion 11 at a predetermined angle to form an outer end surface 71b exposed to the outside together with the top surface 11a, and at the same time, in the casing top 12. A bent portion 12d is provided on the lower side of the leg portion 12a so as to face the hem end upper surface of the flange portion 71, and the tip end side of the bent portion 12d is flush with the outer end surface 71b of the flange portion 71. The outer end surface 12e exposed to the outside may be formed.
【００２４】そして、前記フランジ部７１の第３当接面
７２ｃを前記胴部１１の頂面１１ａ近くの内壁面１１ｂ
に対接させた状態で、それぞれ外部露出される前記胴部
１１の頂面１１ａと、前記フランジ部７１及び脚部１２
ａに設けた各外端面７１ｂ，１２ｅとの３個所を同時に
溶接して、この溶接部９により前記胴部１１とケーシン
グトップ１２と仕切壁７とを固着一体化するのである。Then, the third contact surface 72c of the flange portion 71 is connected to the inner wall surface 11b of the body portion 11 near the top surface 11a.
The top surface 11a of the body portion 11 exposed to the outside, the flange portion 71, and the leg portion 12 in a state of being contacted with each other.
The outer end surfaces 71b and 12e provided on a are simultaneously welded at three points, and the body portion 11, the casing top 12 and the partition wall 7 are fixedly integrated by this welded portion 9.
【００２５】また、図４に示すように、前記フランジ部
７１の裾部端面を平坦面に形成して、外部露出する外端
面７１ｃを設けると共に、前記ケーシング胴部１１の頂
面１１ａに断面Ｖ形状の受入部１１ｄを形成し、前記外
端面７１ｃの下部側に、前記受入部１１ｄに係合する下
方角部７２ｄを形成して、該下方角部７２ｄを当接部７
２と成すのである。Further, as shown in FIG. 4, the hem end surface of the flange portion 71 is formed into a flat surface to provide an outer end surface 71c exposed to the outside, and a cross section V is formed on the top surface 11a of the casing body portion 11. A receiving portion 11d having a shape is formed, a lower corner portion 72d that engages with the receiving portion 11d is formed on the lower side of the outer end surface 71c, and the lower corner portion 72d is brought into contact with the contact portion 7.
2 is achieved.
【００２６】さらに、前記脚部１２ａの下端側には、前
記外端面７１ｃの上方角部７１ｄを受入可能な受入部１
２ｆを形成して、前記各受入部１１ｄ，１２ｆに前記フ
ランジ部７１の各角部７２ｄ，７１ｄを係合させた状態
で、前記フランジ部７１の外端面７１ｃと、前記胴部１
１の外壁面１１ｃ及び頂面１１ａの一部と、前記脚部１
２ａの下端面１２ｃとを同時に溶接して、この溶接部９
により各部材を固着一体化するようにしもよい。Further, on the lower end side of the leg portion 12a, the receiving portion 1 capable of receiving the upper corner portion 71d of the outer end surface 71c.
2f is formed, and the outer end surface 71c of the flange portion 71 and the body portion 1 in a state where the corner portions 72d and 71d of the flange portion 71 are engaged with the receiving portions 11d and 12f, respectively.
1 part of the outer wall surface 11c and the top surface 11a, and the leg portion 1
The lower end surface 12c of 2a is welded at the same time,
Alternatively, the respective members may be fixedly integrated with each other.
【００２７】さらに、図５に示すように、前記フランジ
部７１の裾端でその外端面７１ｃの下部側に、前記当接
部７２として断面概略逆Ｌ形状の切欠部７２ｅを設け、
前記胴部１１の頂部側に前記切欠部７２ｅに係合する突
部１１ｅを形成すると共に、前記脚部１２ａの下端側に
は、前記フランジ部７１の外端面７１ｃの上方角部７１
ｄを受入可能な受入部１２ｆを形成して、前記フランジ
部７１の切欠部７２ｅを前記突部１１ｅに、また、前記
上方角部７１ｄを前記受入部１２ｆにそれぞれ係合させ
た状態で、前記フランジ部７１の外端面７１ｃと、前記
胴部１１の外壁面１１ｃと、前記脚部１２ａの下端面１
２ｃとを同時に溶接して、この溶接部９により各部材を
固着一体化することも可能である。Further, as shown in FIG. 5, a cutout portion 72e having a substantially inverted L-shaped cross section is provided as the abutting portion 72 at the hem end of the flange portion 71 and on the lower side of the outer end surface 71c thereof.
A protrusion 11e that engages with the cutout portion 72e is formed on the top side of the body portion 11, and an upper corner portion 71 of an outer end surface 71c of the flange portion 71 is formed on the lower end side of the leg portion 12a.
In the state where the receiving portion 12f capable of receiving d is formed, the cutout portion 72e of the flange portion 71 is engaged with the protrusion 11e, and the upper corner portion 71d is engaged with the receiving portion 12f, respectively. An outer end surface 71c of the flange portion 71, an outer wall surface 11c of the body portion 11, and a lower end surface 1 of the leg portion 12a.
It is also possible to weld 2c and 2c at the same time so that the welded portions 9 fix and integrate the respective members.
【００２８】また、図６に示すように、前記フランジ部
７１の裾端でその外端面７１ｃの下部側に、前記当接部
７２として断面概略逆Ｌ形状の切欠部７２ｆを形成する
と共に、前記胴部１１の頂部側には、径方向外方に向け
て屈曲する屈曲部１１ｆを設けて、前記脚部１２ａの下
端側には、前記フランジ部７１の上方角部７１ｄを受入
可能な外方に屈曲する屈曲部１２ｇを形成して、前記フ
ランジ部７１の切欠部７２ｆを前記胴部１１の屈曲部１
１ｆに、また、前記上方角部７１ｄを前記脚部１２ａの
屈曲部１２ｇにそれぞれ係合させた状態で、前記フラン
ジ部７１の外端面７１ｃと、前記胴部１１に設けた屈曲
部１１ｆの外面側と、前記脚部１２ａに設けた屈曲部１
２ｇの内面側とを同時に溶接して、この溶接部９により
各部材を固着一体化するようにしてもよい。以上の図３
〜図６に示す構造によっても、前述した場合と同様に、
前記仕切壁７に曲げ加工を施すことなく、該仕切壁７に
付与される高圧圧力を簡単な構造で確実に受け止め、こ
の仕切壁７を強度強化できて信頼性を高めることがで
き、しかも、前記高圧側室８２から低圧側室８４への流
体漏れを確実に阻止することができる。Further, as shown in FIG. 6, a cutout portion 72f having a substantially inverted L-shaped cross section is formed as the contact portion 72 at the hem end of the flange portion 71 and on the lower side of the outer end surface 71c thereof. A bending portion 11f that bends outward in the radial direction is provided on the top side of the body portion 11, and an outside portion capable of receiving the upper corner portion 71d of the flange portion 71 on the lower end side of the leg portion 12a. A bent portion 12g that bends in the vertical direction is formed, and the cutout portion 72f of the flange portion 71 is formed into the bent portion 1 of the body portion 11.
1f, and the upper corner portion 71d engaged with the bent portion 12g of the leg portion 12a, the outer end surface 71c of the flange portion 71 and the outer surface of the bent portion 11f provided on the body portion 11 respectively. Side and the bent portion 1 provided on the leg portion 12a
The inner surface side of 2 g may be welded at the same time, and the welded portions 9 may fix and integrate the respective members. Figure 3 above
~ According to the structure shown in FIG. 6, as in the case described above,
It is possible to reliably receive the high pressure applied to the partition wall 7 with a simple structure without bending the partition wall 7 and to strengthen the partition wall 7 to enhance the reliability. Fluid leakage from the high pressure side chamber 82 to the low pressure side chamber 84 can be reliably prevented.
【００２９】[0029]
【発明の効果】以上説明したように、請求項１記載の発
明では、仕切壁７に高圧側室８２の高圧圧力が付与され
て、該仕切壁７のフランジ部７１が低圧側室８４へと押
されて径方向外方に拡がろうとするとき、この拡がり方
向の力を、前記フランジ部７１の当接部７３を前記ケー
シング胴部１１の頂部に当接させることにより確実に受
け止め、また、前記力をケーシング胴部１１の外面とフ
ランジ部７１の裾端とを固定する溶接部９によっても確
実に受け止めることができるから、従来のように、仕切
壁の径方向外方部位に、ケーシング胴部の頂部に当接す
る受止面を設けるために屈曲部を別途形成することな
く、前記仕切壁７の強度を構造簡単としながら強化でき
て信頼性を高めることができる。As described above, according to the first aspect of the invention, the high pressure of the high pressure side chamber 82 is applied to the partition wall 7, and the flange portion 71 of the partition wall 7 is pushed to the low pressure side chamber 84. When trying to spread outward in the radial direction, the force in the spreading direction is reliably received by bringing the contact portion 73 of the flange portion 71 into contact with the top portion of the casing body portion 11, and also the force. Since it can be reliably received even by the welded portion 9 that fixes the outer surface of the casing body 11 and the hem end of the flange portion 71, as in the conventional case, the casing body of the casing body is provided at the radially outer portion of the partition wall. The strength of the partition wall 7 can be enhanced while simplifying the structure and reliability can be improved without separately forming a bent portion for providing a receiving surface that abuts on the top portion.
【００３０】また、請求項２記載の発明では、前記仕切
壁７のフランジ部７１とケーシング胴部１１及びケーシ
ングトップ１２とをそれぞれ溶接部９により固着一体化
できるので、高圧側室８２の高圧作動流体が低圧側室８
４に漏れるのを確実に阻止することができる。Further, in the second aspect of the present invention, since the flange portion 71 of the partition wall 7, the casing body portion 11 and the casing top 12 can be fixedly integrated by the welding portions 9, respectively, the high pressure working fluid in the high pressure side chamber 82 is formed. Is the low pressure side chamber 8
It can be surely prevented from leaking to No. 4.
【図１】 本発明の適用例として示すスクロール圧縮機
の縦断面図（第１実施例）。FIG. 1 is a vertical cross-sectional view of a scroll compressor shown as an application example of the present invention (first embodiment).
【図２】 同要部の拡大断面図。FIG. 2 is an enlarged sectional view of the main part.
【図３】 第２実施例を示す断面図。FIG. 3 is a sectional view showing a second embodiment.
【図４】 第３実施例を示す断面図。FIG. 4 is a sectional view showing a third embodiment.
【図５】 第４実施例を示す断面図。FIG. 5 is a sectional view showing a fourth embodiment.
【図６】 第５実施例を示す断面図。FIG. 6 is a sectional view showing a fifth embodiment.
【図７】 従来例を示す縦断面図。FIG. 7 is a longitudinal sectional view showing a conventional example.
１……密閉ケーシング、１１…ケーシング胴部、１２…
ケーシングトップ、７…仕切壁、７１…傾斜フランジ
部、７２…当接部、８２…高圧側室、８４…低圧側室、
９…溶接部。1 ... closed casing, 11 ... casing body, 12 ...
Casing top, 7 ... Partition wall, 71 ... Inclined flange part, 72 ... Abutting part, 82 ... High pressure side chamber, 84 ... Low pressure side chamber,
9 ... Welded part.
Claims (2)
グ胴部（１１）とケーシングトップ（１２）との接合部
位に、高圧側室（８２）と低圧側室（８４）とを区画す
る仕切壁（７）を横断状に介装した密閉形流体機械にお
いて、 仕切壁（７）の径方向外方側部位に、裾部が連続状にケ
ーシング胴部（１１）側に向かって拡がる傾斜フランジ
部（７１）を設けて、このフランジ部（７１）の裾部
に、ケーシング胴部（１１）の頂部に当接して仕切壁
（７）の外方への拡がりを阻止する当接部（７２）を設
けると共に、前記フランジ部（７１）の裾端をケーシン
グ胴部（１１）の外面と隣接させて外部に臨ませ、これ
らフランジ部（７１）の裾端とケーシング胴部（１１）
外面との間に、溶接部（９）を形成していることを特徴
とする密閉形流体機械。1. A partition wall (7) for partitioning a high-pressure side chamber (82) and a low-pressure side chamber (84) at a joint portion between a casing body (11) and a casing top (12) in a closed casing (1). In a transversely sealed hermetic type fluid machine, an inclined flange portion (71) whose skirt continuously extends toward the casing body (11) side is provided at a radially outer side portion of the partition wall (7). The flange portion (71) is provided with a contact portion (72) that contacts the top of the casing body (11) and prevents the partition wall (7) from spreading outward. The hem end of the flange portion (71) is adjacent to the outer surface of the casing body (11) so as to be exposed to the outside, and the hem end of the flange portion (71) and the casing body (11) are exposed.
A sealed fluid machine, characterized in that a weld (9) is formed between the outer surface and the outer surface.
部（１１）との間の溶接部（９）に、ケーシングトップ
（１２）の端部を臨ませている請求項１記載の密閉形流
体機械。2. The sealed fluid according to claim 1, wherein the welded portion (9) between the inclined flange portion (71) and the casing body portion (11) faces the end of the casing top (12). machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24412695A JPH0988848A (en) | 1995-09-22 | 1995-09-22 | Enclosed fluid machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24412695A JPH0988848A (en) | 1995-09-22 | 1995-09-22 | Enclosed fluid machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0988848A true JPH0988848A (en) | 1997-03-31 |
Family
ID=17114157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24412695A Pending JPH0988848A (en) | 1995-09-22 | 1995-09-22 | Enclosed fluid machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0988848A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101462944B1 (en) * | 2013-03-18 | 2014-11-19 | 엘지전자 주식회사 | Compressor with lower frame and manufacturing method thereof |
-
1995
- 1995-09-22 JP JP24412695A patent/JPH0988848A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101462944B1 (en) * | 2013-03-18 | 2014-11-19 | 엘지전자 주식회사 | Compressor with lower frame and manufacturing method thereof |
| US9429157B2 (en) | 2013-03-18 | 2016-08-30 | Lg Electronics Inc. | Compressor having a lower frame and a method of manufacturing the same |
| US9546657B2 (en) | 2013-03-18 | 2017-01-17 | Lg Electronics Inc. | Compressor having a lower frame and a method of manufacturing the same |
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