JP2006291787A - Compressor, method for assembling compressor - Google Patents

Compressor, method for assembling compressor Download PDF

Info

Publication number
JP2006291787A
JP2006291787A JP2005111599A JP2005111599A JP2006291787A JP 2006291787 A JP2006291787 A JP 2006291787A JP 2005111599 A JP2005111599 A JP 2005111599A JP 2005111599 A JP2005111599 A JP 2005111599A JP 2006291787 A JP2006291787 A JP 2006291787A
Authority
JP
Japan
Prior art keywords
bearing
sub
compressor
electric motor
cylindrical
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
JP2005111599A
Other languages
Japanese (ja)
Inventor
Takashi Sehata
崇史 瀬畑
Kiyoharu Ikeda
清春 池田
Fumiaki Sano
文昭 佐野
Takeshi Fushiki
毅 伏木
Eiji Watanabe
英治 渡邊
Masao Tani
谷　　真男
Toshitsune Arai
聡経 新井
Teruhiko Nishiki
照彦 西木
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2005111599A priority Critical patent/JP2006291787A/en
Publication of JP2006291787A publication Critical patent/JP2006291787A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Compressor (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compressor and a method for assembling the compressor shortening length of a cylinder part of a hermetic vessel and reducing volume of the hermetic vessel at low cost. <P>SOLUTION: The compressor is provided with the hermetic vessel 10 comprising the cylinder part 10a, and lid parts 10b, 10c which is attached on an end part of the cylinder part 10a by circumference welding 10d, 10e, a compression element 30 provided in the hermetic vessel 10 and driven by a motor element 40 including an motor rotor 8 and a motor stator 7 to compress refrigerant, an auxiliary bearing part 6 provided in an opposite side of the compression element 30 with putting the motor element 40 therebetween and rotatably supporting a main shaft 4 rotated by the motor element 40, and a extended part 6d extending an outer circumference part 6d of the sub-bearing part 6 to an opposite direction of the circumference welding part 10e of the cylinder part 10a and the lid part 10c near the sub-bearing part 6. The sub-bearing part 6 is fixed on the cylinder part 10a of the hermetic vessel 10 by the extension part 6d. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、圧縮機の軸受け部の改良に関するものである。   The present invention relates to an improvement of a bearing portion of a compressor.

従来の圧縮機では、平板形状の副軸受け部（サブフレーム）が電動機要素下方の密閉容器の下部に固定され、密閉容器の下端から電動機要素までの距離が長いものがあった。（例えば、特許文献1参照）   In a conventional compressor, a flat plate-shaped sub-bearing portion (subframe) is fixed to the lower part of the hermetic container below the motor element, and the distance from the lower end of the hermetic container to the motor element is long. (For example, see Patent Document 1)

特開２００２−１４７３６０号公報（第５頁、第１図）JP 2002-147360 A (page 5, FIG. 1)

近年、冷凍サイクルの圧縮機に用いられる冷媒は、ＨＣＦＣ２２などの従来の冷媒からオゾン層を破壊しない地球環境保護に有効なＲ４１０Ａ冷媒や炭酸ガス冷媒などの新しい冷媒の適用が進んでおり、このような新しく用いられてきている冷媒は従来の冷媒に比べて高い圧力で運転されるため、圧縮機の密閉容器内も従来よりも高圧力化してきている。また、欧州圧力機器指令などの規制により、圧縮機の密閉容器内の圧力と密閉容器内の容積を乗じた値が規格値を超えると管理などの条件が厳しくなる。このようなことを解決するため、圧縮機の密閉容器内の容積を縮小することが有効であり、安価に圧縮機内の容積を縮小するには軸方向の高さを縮小することが効果的で、副軸受け部（サブフレーム）付近の密閉容器を短かくすることが考えられるが、しかし、従来の圧縮機では副軸受け部（サブフレーム）は近傍の密閉容器の筒部と蓋部との円周溶接による歪みの影響を受け易いという課題があるため、副軸受け部と密閉容器の円周溶接部分との距離が長く必要で、また、副軸受け部は電動要素の充電部との絶縁距離を保つ必要があり、副軸受け部では密閉容器の容積を軸方向に縮小することができないという課題があった。   In recent years, as refrigerants used in compressors for refrigeration cycles, new refrigerants such as R410A refrigerant and carbon dioxide refrigerant that are effective in protecting the global environment without destroying the ozone layer from conventional refrigerants such as HCFC22 have been applied. Since the newly used refrigerant is operated at a pressure higher than that of the conventional refrigerant, the pressure inside the hermetic container of the compressor is higher than that of the conventional refrigerant. Also, due to regulations such as the European Pressure Equipment Directive, if the value obtained by multiplying the pressure in the compressor's sealed container by the volume in the sealed container exceeds the standard value, the management and other conditions become severe. In order to solve such a problem, it is effective to reduce the volume in the hermetic container of the compressor. To reduce the volume in the compressor at a low cost, it is effective to reduce the height in the axial direction. However, it is conceivable to shorten the closed container in the vicinity of the sub-bearing part (subframe). However, in the conventional compressor, the sub-bearing part (subframe) is a circle between the cylindrical part and the lid part of the nearby sealed container. Because there is a problem that it is easily affected by distortion caused by circumferential welding, it is necessary to increase the distance between the secondary bearing part and the circumferential welded part of the sealed container, and the secondary bearing part has an insulation distance from the charging part of the electric element. There is a problem that the volume of the sealed container cannot be reduced in the axial direction in the sub-bearing portion.

この発明は、上記のような課題を解決するためになされたもので、副軸受け部への密閉容器の蓋部と筒部との円周溶接による歪みの影響を防止でき、また、密閉容器の長さを短くすることができ、安価に密閉容器の容積を縮小できる圧縮機およびその組立方法を得ることを目的としている。   The present invention has been made to solve the above-described problems, and can prevent the influence of distortion caused by circumferential welding of the lid portion and the cylindrical portion of the sealed container to the sub-bearing portion. It is an object of the present invention to obtain a compressor that can be shortened in length and can reduce the volume of a hermetic container at low cost, and an assembling method thereof.

この発明に係る圧縮機は、筒部と前記筒部の端部に円周溶接する蓋部とを備えた密閉容器と、前記密閉容器内に設けられ電動機回転子と電動機固定子とを有する電動機要素により駆動されて冷媒を圧縮する圧縮要素と、前記電動機要素を挟んだ前記圧縮要素の反対側に設けられて前記電動機要素により回転する主軸を回転自在に軸支する副軸受け部と、前記副軸受け部近傍の前記蓋部と前記筒部との円周溶接部分とは反対側に前記副軸受け部の外周部を延長した延長部と、を備え、前記副軸受け部を前記延長部で前記密閉容器の前記筒部に固定したものである。   A compressor according to the present invention includes an airtight container having a cylindrical portion and a lid portion that is circumferentially welded to an end of the cylindrical portion, and an electric motor having an electric motor rotor and an electric motor stator provided in the airtight container. A compression element that is driven by the element and compresses the refrigerant; a sub-bearing portion that is provided on the opposite side of the compression element across the electric motor element and rotatably supports the main shaft that is rotated by the electric motor element; An extension part that extends the outer peripheral part of the auxiliary bearing part on the opposite side of the circumferentially welded part between the lid part and the cylindrical part in the vicinity of the bearing part, and the auxiliary bearing part is sealed with the extension part It is fixed to the cylindrical part of the container.

また、この発明に係る圧縮機は、筒部と前記筒部の端部に円周溶接する蓋部とを備えた密閉容器と、前記密閉容器内に設けられ電動機回転子と電動機固定子とを有する電動機要素により駆動されて冷媒を圧縮する圧縮要素と、前記電動機要素を挟んだ前記圧縮要素の反対側に設けられて前記電動機要素により回転する主軸を回転自在に軸支する副軸受け部と、前記副軸受け部側の前記電動機固定子のコイルエンドと絶縁距離を隔てるとともに前記コイルエンドの側方位置まで前記副軸受け部の外周部を延長した延長部と、を備え、前記コイルエンドの側方の前記延長部で前記副軸受け部を前記密閉容器の前記筒部に固定したものである。   Further, a compressor according to the present invention includes a hermetic container including a cylinder part and a lid part that is circumferentially welded to an end part of the cylinder part, and an electric motor rotor and an electric motor stator that are provided in the hermetic container. A compression element that is driven by an electric motor element to compress refrigerant, and a sub-bearing portion that is provided on the opposite side of the compression element across the electric motor element and rotatably supports a main shaft that is rotated by the electric motor element; An extension part that extends an outer peripheral part of the sub-bearing part to a side position of the coil end while separating an insulation distance from a coil end of the motor stator on the side of the sub-bearing part. The auxiliary bearing portion is fixed to the cylindrical portion of the sealed container by the extension portion.

また、この発明に係る圧縮機の組立方法は、密閉容器の筒部に電動機要素と前記電動機要素により駆動されて冷媒を圧縮する圧縮要素を固定するステップと、前記電動機要素を挟んだ前記圧縮要素の反対側に主軸を回転自在に軸支する副軸受け部を前記筒部に固定するステップと、前記副軸受け部近傍で前記筒部を覆う蓋部を前記筒部に円周溶接するステップと、を備えた圧縮機の組立方法であって、前記副軸受け部近傍の前記蓋部と前記筒部との円周溶接部分とは反対側に前記副軸受け部の外周部を延長した延長部を設け、前記副軸受け部を前記延長部で前記密閉容器の前記筒部にスポット溶接で固定するものである。   The compressor assembly method according to the present invention includes a step of fixing an electric motor element and a compression element that is driven by the electric motor element and compresses a refrigerant to a cylindrical portion of an airtight container, and the compression element sandwiching the electric motor element Fixing a sub-bearing portion that rotatably supports the main shaft on the opposite side to the cylindrical portion, and circumferentially welding a lid portion covering the cylindrical portion in the vicinity of the auxiliary bearing portion to the cylindrical portion; An assembly method for a compressor comprising: an extension portion that extends an outer peripheral portion of the auxiliary bearing portion on a side opposite to a circumferential weld portion between the lid portion and the cylindrical portion in the vicinity of the auxiliary bearing portion. The sub-bearing portion is fixed to the cylindrical portion of the sealed container by spot welding with the extension portion.

この発明に係る圧縮機は、筒部と前記筒部の端部に円周溶接する蓋部とを備えた密閉容器と、前記密閉容器内に設けられ電動機回転子と電動機固定子とを有する電動機要素により駆動されて冷媒を圧縮する圧縮要素と、前記電動機要素を挟んだ前記圧縮要素の反対側に設けられて前記電動要機素により回転する主軸を回転自在に軸支する副軸受け部と、前記副軸受け部近傍の前記蓋部と前記筒部との円周溶接部分とは反対側に前記副軸受け部の外周部を延長した延長部と、を備え、前記副軸受け部を前記延長部で前記密閉容器の前記筒部に固定したので、副軸受け部への密閉容器の蓋部と筒部との円周溶接による歪みの影響を防止でき、また、密閉容器の蓋部と筒部との円周溶接部分から副軸受け部までの距離を短くして密閉容器の長さを短くすることができ、安価に密閉容器の容積を縮小できる効果がある。   A compressor according to the present invention includes an airtight container having a cylindrical portion and a lid portion that is circumferentially welded to an end of the cylindrical portion, and an electric motor having an electric motor rotor and an electric motor stator provided in the airtight container. A compression element that is driven by the element and compresses the refrigerant; and a sub-bearing portion that is provided on the opposite side of the compression element across the electric motor element and rotatably supports the main shaft that is rotated by the electric main element; An extension part that extends the outer peripheral part of the secondary bearing part on the opposite side of the circumferentially welded part between the lid part and the cylindrical part in the vicinity of the secondary bearing part, and the secondary bearing part is the extension part. Since it is fixed to the cylindrical portion of the sealed container, it is possible to prevent the influence of distortion caused by circumferential welding between the lid portion of the sealed container and the cylindrical portion on the sub-bearing portion, and between the lid portion and the cylindrical portion of the sealed container. Shorten the distance from the circumferential weld to the sub-bearing to shorten the length of the sealed container It can be an effect of inexpensively reduce the volume of the closed container.

また、この発明に係る圧縮機は、筒部と前記筒部の端部に円周溶接する蓋部とを備えた密閉容器と、前記密閉容器内に設けられ電動機回転子と電動機固定子とを有する電動機要素により駆動されて冷媒を圧縮する圧縮要素と、前記電動機要素を挟んだ前記圧縮要素の反対側に設けられて前記電動機要素により回転する主軸を回転自在に軸支する副軸受け部と、前記副軸受け部側の前記電動機固定子のコイルエンドと絶縁距離を隔てるとともに前記コイルエンドの側方位置まで前記副軸受け部の外周部を延長した延長部と、を備え、前記コイルエンドの側方の前記延長部で前記副軸受け部を前記密閉容器の前記筒部に固定したので、副軸受け部への密閉容器の蓋部と筒部との円周溶接による歪みの影響を防止でき、また、密閉容器の蓋部と筒部との円周溶接部から副軸受け部までの距離を短くして密閉容器の長さを短くすることができ、安価に密閉容器の容積を縮小できる効果がある。   Further, a compressor according to the present invention includes a hermetic container including a cylinder part and a lid part that is circumferentially welded to an end part of the cylinder part, and an electric motor rotor and an electric motor stator that are provided in the hermetic container. A compression element that is driven by an electric motor element to compress refrigerant, and a sub-bearing portion that is provided on the opposite side of the compression element across the electric motor element and rotatably supports a main shaft that is rotated by the electric motor element; An extension part that extends an outer peripheral part of the sub-bearing part to a side position of the coil end while separating an insulation distance from a coil end of the motor stator on the side of the sub-bearing part. Since the secondary bearing portion is fixed to the cylindrical portion of the sealed container by the extension portion, it is possible to prevent the influence of distortion due to circumferential welding of the lid portion and the cylindrical portion of the sealed container to the secondary bearing portion, Sealed container lid and tube Of the distance from the circumferential weld to the sub bearing portion shorter it is possible to shorten the length of the sealed container, there is an effect that can be inexpensively reduce the volume of the closed container.

また、この発明に係る圧縮機の組立方法は、密閉容器の筒部に電動機要素と前記電動機要素により駆動されて冷媒を圧縮する圧縮要素を固定するステップと、前記電動機要素を挟んだ前記圧縮要素の反対側に主軸を回転自在に軸支する副軸受け部を前記筒部に固定するステップと、前記副軸受け部近傍で前記筒部を覆う蓋部を前記筒部に円周溶接するステップと、を備えた圧縮機の組立方法であって、前記副軸受け部近傍の前記蓋部と前記筒部との円周溶接部分とは反対側に前記副軸受け部の外周部を延長した延長部を設け、前記副軸受け部を前記延長部で前記密閉容器の前記筒部にスポット溶接で固定するので、副軸受け部への密閉容器の蓋部と筒部との円周溶接による歪みの影響を防止でき、また、密閉容器の蓋部と筒部との円周溶接部から副軸受け部までの距離を短くして密閉容器の長さを短くすることができ、安価に密閉容器の容積を縮小できる圧縮機を組立てできる効果がある。   The compressor assembly method according to the present invention includes a step of fixing an electric motor element and a compression element that is driven by the electric motor element and compresses a refrigerant to a cylindrical portion of an airtight container, and the compression element sandwiching the electric motor element Fixing a sub-bearing portion that rotatably supports the main shaft on the opposite side to the cylindrical portion, and circumferentially welding a lid portion covering the cylindrical portion in the vicinity of the auxiliary bearing portion to the cylindrical portion; An assembly method for a compressor comprising: an extension portion that extends an outer peripheral portion of the auxiliary bearing portion on a side opposite to a circumferential weld portion between the lid portion and the cylindrical portion in the vicinity of the auxiliary bearing portion. Since the auxiliary bearing portion is fixed to the cylindrical portion of the sealed container by the extension portion by spot welding, it is possible to prevent the influence of distortion due to circumferential welding of the lid portion and the cylindrical portion of the sealed container to the auxiliary bearing portion. Also, the circumferential welded part between the lid and the cylinder of the sealed container Luo the distance to the sub bearing portion shorter it is possible to shorten the length of the sealed container, there is an effect of assembling the compressor can be inexpensively reduce the volume of the closed container.

実施の形態１．
図１はこの発明の実施の形態１におけるフレームコンプライアント形スクロール圧縮機の縦断面図、図２はこの発明の実施の形態１における図１に示した圧縮機の副軸受け部の斜視図、図３はこの発明の実施の形態１における図１に示した圧縮機の副軸受け部付近の要部拡大断面図である。 Embodiment 1 FIG.
1 is a longitudinal sectional view of a frame-compliant scroll compressor according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view of a secondary bearing portion of the compressor shown in FIG. 1 according to Embodiment 1 of the present invention. 3 is an enlarged cross-sectional view of a main part in the vicinity of a sub-bearing portion of the compressor shown in FIG. 1 according to Embodiment 1 of the present invention.

図において、固定スクロール１の外周部は、図示しないボルトによって、ガイドフレーム１５に締結されている。台板部１ａの一方の面（図１において下側）には、板状渦巻歯１ｂが形成され、外周部には、二つのオルダム案内溝１ｃがほぼ一直線上に形成されている。このオルダム案内溝１ｃには、オルダムリング９の固定スクロール側爪９ｃが往復摺動自在に係合されている。   In the drawing, the outer peripheral portion of the fixed scroll 1 is fastened to the guide frame 15 by bolts (not shown). A plate-like spiral tooth 1b is formed on one surface (the lower side in FIG. 1) of the base plate portion 1a, and two Oldham guide grooves 1c are formed substantially in a straight line on the outer peripheral portion. A fixed scroll side claw 9c of the Oldham ring 9 is engaged with the Oldham guide groove 1c so as to be slidable back and forth.

揺動スクロール２の台板部２ａの上面には、固定スクロール１の板状渦巻歯１ｂと実質的に同一形状の板状渦巻歯２ｂが設けられており、これら固定スクロール１の板状渦巻歯１ｂと、揺動スクロール２の板状渦巻歯２ｂとは、幾何学的に圧縮室１ｄを形成している。台板２ａの板状渦巻歯２ｂが形成された面の反対側の面の中心部には、中空円筒のボス部２ｆが形成されており、主軸４上端の揺動軸部４ｂに回転自在に係合されている。   On the upper surface of the base plate portion 2a of the orbiting scroll 2, plate-like spiral teeth 2b having substantially the same shape as the plate-like spiral teeth 1b of the fixed scroll 1 are provided. 1b and the plate-like spiral teeth 2b of the orbiting scroll 2 geometrically form a compression chamber 1d. A hollow cylindrical boss 2f is formed at the center of the surface opposite to the surface on which the plate-like spiral teeth 2b of the base plate 2a are formed, and is freely rotatable on the swing shaft 4b at the upper end of the main shaft 4. Is engaged.

また、同じ面には、コンプライアントフレーム３のスラスト軸受け３ａに、圧接摺動可能なスラスト面２ｄが形成されている。揺動スクロール２の台板部２ａの外周部には、固定スクロール１のオルダム案内溝１ｃに対して、９０度の位相差を有するオルダム案内溝２ｅが、ほぼ一直線上に二つ形成されており、このオルダム案内溝２ｅには、オルダムリング９の揺動スクロール側爪９ａが、往復摺動自在に係合されている。また台板部２ａには、圧縮室１ｄとスラスト面２ｄを貫通する抽出孔２ｊが設けられ、圧縮途中の冷媒ガスを抽出して、スラスト面２ｄに導くようにしている。   On the same surface, a thrust bearing 2 a of the compliant frame 3 is formed with a thrust surface 2 d that can be pressed and slid. Two Oldham guide grooves 2e having a phase difference of 90 degrees with respect to the Oldham guide groove 1c of the fixed scroll 1 are formed on the outer peripheral portion of the base plate portion 2a of the orbiting scroll 2 on a substantially straight line. The Oldham guide groove 2e is engaged with an orbiting scroll side claw 9a of the Oldham ring 9 so as to be reciprocally slidable. Further, the base plate portion 2a is provided with an extraction hole 2j that penetrates the compression chamber 1d and the thrust surface 2d, and extracts the refrigerant gas in the middle of compression and guides it to the thrust surface 2d.

そして、揺動スクロール２を冷媒ガスの中間圧力によって浮上させるコンプライアントフレーム３は、その外周部に設けられた上下二つの円筒面３ｄ，３ｅを、ガイドフレーム１５の内周部に設けられた円筒面１５ａ，１５ｂによって半径方向に支持されており、その中心部には、電動機固定子７によって、回転駆動される主軸４を半径方向に支持する主軸受け３ｃおよび副主軸受け３ｈが形成されている。また、スラスト軸受け３ａ面内から軸方向に貫通する連絡通路３ｓが設けてあり、そのスラスト軸受け３ａ側の開口部３ｋは、揺動スクロール抽出孔２ｊに対面して配置されている。そして、冷媒を圧縮する圧縮要素３０をこれら固定スクロール１と揺動スクロール２とコンプライアントフレーム３及びガイドフレーム１５などにより構成している。   The compliant frame 3 that floats the orbiting scroll 2 with the intermediate pressure of the refrigerant gas has two cylindrical surfaces 3d and 3e provided on the outer periphery thereof, and a cylinder provided on the inner periphery of the guide frame 15. The main bearing 3c and the sub main bearing 3h that support the rotationally driven main shaft 4 in the radial direction by the electric motor stator 7 are formed at the center thereof by the surfaces 15a and 15b. . Further, a communication passage 3s penetrating in the axial direction from the surface of the thrust bearing 3a is provided, and the opening 3k on the thrust bearing 3a side is arranged to face the swing scroll extraction hole 2j. The compression element 30 for compressing the refrigerant is constituted by the fixed scroll 1, the swing scroll 2, the compliant frame 3, the guide frame 15, and the like.

潤滑油５が貯留され冷媒により内部が高圧となる密閉容器１０は、ミドルシェルである略円筒形状の筒部１０ａとこの筒部１０ａの両端部を塞ぐ上下蓋部１０ｂ，１０ｃとからなり、筒部１０ａにそれぞれアッパーシェルである上蓋部１０ｂ及びロアシェルである下蓋部１０ｃを、円周の接合部でそれぞれ円周溶接１０ｄ，１０ｅして容器状に形成している。また、筒部１０ａには冷媒を吸入する吸入管１０ｆ、吐出管１０ｇ及びガラス端子１０ｈが取り付けられている。   A sealed container 10 in which the lubricating oil 5 is stored and the inside of which is pressurized by a refrigerant is composed of a substantially cylindrical tube portion 10a that is a middle shell and upper and lower lid portions 10b and 10c that close both ends of the tube portion 10a. An upper lid portion 10b, which is an upper shell, and a lower lid portion 10c, which is a lower shell, are formed in a container shape by circumferential welding 10d and 10e, respectively, at circumferential joints. Further, a suction pipe 10f for sucking refrigerant, a discharge pipe 10g, and a glass terminal 10h are attached to the cylindrical portion 10a.

圧縮要素３０を冷媒を圧縮させるように回転させる電動機要素４０は、電動機固定子７と電動機固定子７内で回転する電動機回転子８を有し、電動機固定子７のコア部７ａが焼き嵌めによって筒部１０ａの内周に固着されている。また、電動機固定子７にはコア７ａの上下にそれぞれコイルエンド７ｂ，７ｃが形成されている。   The electric motor element 40 that rotates the compression element 30 so as to compress the refrigerant has the electric motor stator 7 and the electric motor rotor 8 that rotates in the electric motor stator 7, and the core portion 7a of the electric motor stator 7 is shrink-fitted. It is fixed to the inner periphery of the cylinder part 10a. The motor stator 7 has coil ends 7b and 7c formed above and below the core 7a, respectively.

また、ガイドフレーム１５の外周面１５ｇは焼き嵌め、もしくは溶接などによって密閉容器１０の筒部１０ａに固着されており、その外周部に設けられた切り欠き部１５ｃによって、固定スクロール１の吐出ポート１ｆから吐出される高圧の冷媒ガスを圧縮要素３０と電動機要素４０の間に設けられた吐出管１０ｇに導く流路が確保されている。また、切り欠き部１５ｃは吐出管１０ｇに対して反対の位置に設けられている。また、ガイドフレーム１５の内周面には、コンプライアントフレーム３の外周面に形成された上下円筒面３ｄ，３eに係合する円筒面１５ａ，１５ｂおよびシール材を収納するシール溝が二つ設けられており、それぞれシール材１６ａ，１６ｂが配設されている。これら二つのシール材を用いて密封されたガイドフレーム１５の内周面とコンプライアントフレーム３の外周面からなるフレーム空間１５ｆは、コンプライアントフレーム３の連絡通路３ｓとのみ連通しており、揺動スクロール抽出孔２ｊより供給される圧縮途中の冷媒ガスを封入するように構成している。   The outer peripheral surface 15g of the guide frame 15 is fixed to the cylindrical portion 10a of the sealed container 10 by shrink fitting or welding, and the discharge port 1f of the fixed scroll 1 is provided by a notch 15c provided on the outer peripheral portion. A flow path for guiding the high-pressure refrigerant gas discharged from the discharge pipe 10g provided between the compression element 30 and the motor element 40 is secured. The notch 15c is provided at a position opposite to the discharge pipe 10g. Further, on the inner peripheral surface of the guide frame 15, two cylindrical surfaces 15 a and 15 b that are engaged with the upper and lower cylindrical surfaces 3 d and 3 e formed on the outer peripheral surface of the compliant frame 3 and two seal grooves that store the sealing material are provided. Sealing materials 16a and 16b are provided, respectively. A frame space 15f composed of the inner peripheral surface of the guide frame 15 and the outer peripheral surface of the compliant frame 3 sealed with these two sealing materials communicates only with the communication passage 3s of the compliant frame 3, and swings. The refrigerant gas in the middle of compression supplied from the scroll extraction hole 2j is sealed.

主軸４の上端部は、揺動スクロール２の揺動軸受け２ｃに対して、回転自在に係合する揺動軸部４ｂが形成されており、その下側には主軸バランサ４ｅが焼き嵌められている。さらにその下にはコンプライアントフレーム３の主軸受け３ｃおよび副主軸受け３ｈと回転自在に係合する主軸部４ｃが形成されている。また、主軸４には電動機要素４０の電動機回転子８が焼き嵌められている。そして、この電動機回転子８の下方である電動機要素４０を挟んだ圧縮要素３０の反対側に密閉容器１０の筒部１０ａの内周に固定されて主軸４を回転自在に軸支する副軸受け部６を設けている。   An upper end portion of the main shaft 4 is formed with an oscillating shaft portion 4b that is rotatably engaged with the oscillating bearing 2c of the oscillating scroll 2, and a main shaft balancer 4e is shrink fitted on the lower side thereof. Yes. Furthermore, a main shaft portion 4c that is rotatably engaged with the main bearing 3c and the sub main bearing 3h of the compliant frame 3 is formed therebelow. An electric motor rotor 8 of the electric motor element 40 is shrink-fitted on the main shaft 4. And the sub bearing part which is fixed to the inner periphery of the cylinder part 10a of the airtight container 10 on the other side of the compression element 30 which sandwiched the electric motor element 40 below this electric motor rotor 8, and rotatably supports the main shaft 4 6 is provided.

次に副軸受け部６の構成について説明する。図２は副軸受け部６の斜視図であり、また図３は副軸受け部６の位置関係を説明する要部拡大断面図である。図に示すように、円形の副軸受け部６は中心部に主軸４の副軸部４ｄを回転自在に支える副軸受け６ａを形成し、外周部６ｂからこの副軸受け６ａを半径方向に繋ぐリブ６ｃにより一体に形成している。なお、この実施の形態ではリブ６ｃを円周方向に略等角度間隔で三箇所に形成している。   Next, the configuration of the sub bearing portion 6 will be described. FIG. 2 is a perspective view of the sub-bearing portion 6, and FIG. 3 is an enlarged cross-sectional view of a main part for explaining the positional relationship of the sub-bearing portion 6. As shown in the figure, the circular secondary bearing portion 6 forms a secondary bearing 6a that rotatably supports the secondary shaft portion 4d of the main shaft 4 at the center, and a rib 6c that connects the secondary bearing 6a in the radial direction from the outer peripheral portion 6b. Are formed integrally. In this embodiment, the ribs 6c are formed at three locations at substantially equal angular intervals in the circumferential direction.

この副軸受け部６は副軸受け６ａが円周溶接１０ｅなどの影響で歪むと数ミクロン程度の歪みであっても主軸４の回転に影響を与えて圧縮機の性能低下や騒音及び副軸受け６ａなどが異常摩耗を起して圧縮機の信頼性を低下させる場合が有り、副軸受け部６が歪まないようにすることが重要である。   When the auxiliary bearing 6a is distorted by the influence of circumferential welding 10e or the like, the auxiliary bearing 6 influences the rotation of the main shaft 4 even if the distortion is about several microns, resulting in deterioration of the performance of the compressor, noise, and the auxiliary bearing 6a. May cause abnormal wear and reduce the reliability of the compressor, and it is important to prevent the secondary bearing portion 6 from being distorted.

このため、副軸受け部６近傍の下蓋部１０ｃと筒部１０ａとの円周溶接１０ｅを行う際の熱等による歪みなどの影響が筒部１０ａと副軸受け部６との固定部分から外周部６ｂとリブ６ｃを介して副軸受け６ａに伝わり主軸４の回転に影響を及ぼす可能性がないようにするため、円周溶接部１０ｅと筒部１０ａの副軸受け部６との固定部分までの距離を十分に開ける必要があり、また、その結果、円周溶接部１０ｅと副軸受け６の距離が長くなることから密閉容器の容積も大きくなってしまうようになる。   For this reason, the influence of distortion due to heat or the like when performing circumferential welding 10e between the lower lid portion 10c and the cylindrical portion 10a in the vicinity of the auxiliary bearing portion 6 is affected by the fixed portion between the cylindrical portion 10a and the auxiliary bearing portion 6 to the outer peripheral portion. The distance from the circumferential welded portion 10e to the fixed portion of the cylindrical portion 10a to the auxiliary bearing portion 6 so as not to affect the rotation of the main shaft 4 by being transmitted to the auxiliary bearing 6a via the rib 6c and the rib 6c. Must be opened sufficiently, and as a result, the distance between the circumferential welded portion 10e and the sub-bearing 6 becomes longer, so that the volume of the sealed container becomes larger.

この円周溶接１０ｅ部分による副軸受け部６への歪みの影響を防止するため、この実施の形態では、副軸受け部６の外周部６ｂに副軸受け部６近傍の下蓋部１０ｃと筒部１０ａとの円周溶接１０ｅ部分とは反対側に副軸受け部６の外周部６ｂを延長した延長部６ｄを形成し、この延長部６ｄで、副軸受け部６を密閉容器１０の筒部１０ａの内周にスポット溶接６ｅで固定するようにしている。このように、延長部６ｄを副軸受け部６側の電動機固定子７のコイルエンド７ｃと絶縁距離を隔てるとともにコイルエンド７ｃの側方位置まで副軸受け部６の外周部６ｂを延長して形成し、コイルエンド７ｃの側方の延長部６ｄで副軸受け部６を密閉容器１０の筒部１０ａの内周にスポット溶接で固定している。このようにして、延長部６ｄにより円周溶接１０ｅ部分とスポット溶接６ｅによる副軸受け部６と筒部１０ａの固定部分の距離が十分に開けることができるので、円周溶接１０ｅ部分により副軸受け部６の副軸受け６ａが歪むことがなく、また、円周溶接１０ｅ部分を副軸受け部６に近付けるように筒部１０ａの長さを短くすることも可能になり、密閉容器の容積を縮小することもできるようになる。   In order to prevent the influence of distortion on the sub-bearing portion 6 due to the circumferential weld 10e portion, in this embodiment, the lower lid portion 10c and the cylinder portion 10a in the vicinity of the sub-bearing portion 6 are provided on the outer peripheral portion 6b of the sub-bearing portion 6. An extension portion 6d is formed by extending the outer peripheral portion 6b of the sub-bearing portion 6 on the side opposite to the circumferential weld 10e portion. The extension portion 6d allows the sub-bearing portion 6 to be connected to the inside of the cylindrical portion 10a of the sealed container 10. The periphery is fixed by spot welding 6e. In this way, the extension 6d is formed by separating the insulation distance from the coil end 7c of the motor stator 7 on the side of the sub-bearing portion 6 and extending the outer peripheral portion 6b of the sub-bearing portion 6 to the side position of the coil end 7c. The auxiliary bearing portion 6 is fixed to the inner periphery of the cylindrical portion 10a of the sealed container 10 by spot welding with the extension portion 6d on the side of the coil end 7c. In this way, the extension portion 6d can sufficiently open the distance between the circumferential weld 10e portion and the fixed portion between the secondary bearing portion 6 and the cylindrical portion 10a by spot welding 6e. The secondary bearing 6a is not distorted, and the length of the cylindrical portion 10a can be shortened so that the circumferential weld 10e portion is brought close to the secondary bearing portion 6, thereby reducing the volume of the sealed container. You will also be able to.

なお、副軸受け部６の外周部６ｂ及び延設部６ｄの筒部１０ａ内周と接する部分は筒部１０ａの内周より若干小さい寸法にしているので、ほぼスポット溶接６ｅ部分が主に筒部１０ａの内周に強固に固着されており、筒部１０ａと下蓋部１０ｃとの円周溶接１０ｅ部分の溶接の影響を受ける部分は副軸受け部６の延長部６ｄのスポット溶接６ｅ部分となる。また、スポット溶接６ｅ部分は筒部１０ａ側に設けた穴に溶接することで副軸受け部６の延設部６ｄを筒部１０に溶接固定するようにしているので、筒部１０ａの外側から容易に溶接ができる。   In addition, since the part which contact | connects the outer peripheral part 6b of the subbearing part 6 and the cylinder part 10a inner periphery of the extension part 6d is made a little smaller dimension than the inner periphery of the cylinder part 10a, the spot weld 6e part is mainly a cylinder part. The portion that is firmly fixed to the inner periphery of 10a and is affected by the welding of the circumferential weld 10e between the cylinder portion 10a and the lower lid portion 10c is the spot weld 6e portion of the extension portion 6d of the sub-bearing portion 6. . Further, the spot weld 6e portion is welded to a hole provided on the cylindrical portion 10a side so that the extended portion 6d of the auxiliary bearing portion 6 is welded and fixed to the cylindrical portion 10, so that it is easy from the outside of the cylindrical portion 10a. Can be welded.

また、この延長部６ｄについてさらに説明する。図３の副軸受け部６の位置関係を説明する要部拡大断面図に示すように、円周形状の延長部６ｄは電動機固定子７のコイルエンド７ｃ部分がその内側に収納されるように設けており、コイルエンド７ｃの端より上方、つまり図３のＥ寸法に示すようにコイルエンド７ｃの側方の延長部６ｄの先部分でスポット溶接６ｅにより密閉容器１０の筒部１０ａに溶接で固着している。このため、スポット溶接６ｅの位置は、筒部１０ａと下蓋部１０ｃとの円周溶接１０ｅ部分により副軸受け６ａが歪みの影響を受けないようにするための図３のＡ寸法で示すような十分な距離Ａを確保できるようになる。また、充電部であるコイルエンド７ｃに対し、コイルエンド７ｃの端部とリブ６ｃとの絶縁距離を図３のＣ寸法に示すように十分な距離を確保して副軸受け部６を配置させるとともに、延長部６ｄとコイルエンドと７ｃ側方の絶縁距離も延長部６ｄを筒部１０ａ内周に沿って延設し、図３のＢ寸法で示すように延長部６ｄとコイルエンド７ｃとの間に十分な絶縁距離を確保している。   The extension 6d will be further described. As shown in the enlarged sectional view of the main part for explaining the positional relationship of the sub-bearing portion 6 in FIG. 3, the circumferentially extending portion 6d is provided so that the coil end 7c portion of the motor stator 7 is accommodated inside thereof. As shown in the dimension E in FIG. 3, the end of the coil end 7c is fixed to the cylindrical portion 10a of the sealed container 10 by spot welding 6e at the tip of the extension 6d on the side of the coil end 7c. is doing. For this reason, the position of the spot weld 6e is as shown by the dimension A in FIG. 3 in order to prevent the auxiliary bearing 6a from being affected by the distortion by the circumferential weld 10e portion of the cylindrical portion 10a and the lower lid portion 10c. A sufficient distance A can be secured. Further, with respect to the coil end 7c which is a charging part, the auxiliary bearing part 6 is arranged with a sufficient distance as shown in the dimension C of FIG. 3 for the insulation distance between the end of the coil end 7c and the rib 6c. The extension 6d, the coil end, and the insulation distance on the side of the coil 7c also extend the extension 6d along the inner periphery of the cylinder 10a, and between the extension 6d and the coil end 7c as shown by the dimension B in FIG. A sufficient insulation distance is secured.

このため、コイルエンド７ｃと副軸受け部６の間に十分な絶縁距離（Ｂ寸法及びＣ寸法）を確保し、筒部１０ａと下蓋部１０ｃとの円周溶接１０ｅにより副軸受け６ａが歪まないようにスポット溶接６ｅと円周溶接１０ｅ部分の距離（Ａ寸法）を満たしたまま、図３のＤ寸法に示す副軸受け部６と下蓋部１０ｃの距離Ｄを短く詰めることができるので、従来の圧縮機に比べ密閉容器１０の主軸４方向高さを縮小でき、圧縮機の内容積を縮小させることが安価にできる。   For this reason, sufficient insulation distance (B dimension and C dimension) is ensured between the coil end 7c and the sub bearing part 6, and the sub bearing 6a is not distorted by the circumferential welding 10e of the cylinder part 10a and the lower cover part 10c. As described above, the distance D between the auxiliary bearing portion 6 and the lower lid portion 10c shown in the D dimension of FIG. 3 can be shortened while the distance (A dimension) between the spot weld 6e and the circumferential weld 10e is satisfied. Compared with the compressor, the height of the hermetic container 10 in the direction of the main shaft 4 can be reduced, and the internal volume of the compressor can be reduced at a low cost.

なお、密閉容器１０の容積を縮小するために密閉容器１０の主軸４方向を短くすることがよい点は、容積を縮小するために密閉容器の径などを小さくするとした場合に比べ流用できる部品や設備が多く安価に圧縮機を構成できるためである。   In addition, in order to reduce the volume of the sealed container 10, it is preferable to shorten the main shaft 4 direction of the sealed container 10, such as parts that can be used compared to the case where the diameter of the sealed container is reduced to reduce the volume, This is because there are many facilities and the compressor can be configured at low cost.

また、副軸受け部６は焼結金属などでも作成できるが、この実施の形態では鋳鉄で形成してる。そして鋳鉄で構成することで副軸受け部６を密閉容器１０の筒部１０ａに溶接する際にスポット溶接が良好に行え、また鋳鉄による鋳物成型で安価に副軸受け部６を得られるという効果もある。 The sub-bearing portion 6 can be made of sintered metal or the like, but is formed of cast iron in this embodiment. And by comprising with cast iron, when welding the subbearing part 6 to the cylinder part 10a of the airtight container 10, spot welding can be performed favorably, and there is also an effect that the subbearing part 6 can be obtained at low cost by casting with cast iron. .

また、副軸受け部６のスポット溶接部６ｅをこの実施の形態では３箇所のリブ６ｃ近傍の延長部６ｄで筒部１０ａに溶接するようにしている。このようにすることで延長部６ｄの厚さを厚くし過ぎなくてもリブ６ｃ近傍の延長部６ｄはその他の延長部６ｄ部分よりリブ６ｃにより変形に強い構造となるため、スポット溶接６ｅを行う際に外周壁である延長部６ｄ部分の取扱いやスポット溶接による変形を防止でき、かつ、延長壁６ｄが厚くなり過ぎないので、コイルエンド７ｃとの絶縁距離を確保しやすいという効果もある。   Further, in this embodiment, the spot welded portion 6e of the auxiliary bearing portion 6 is welded to the cylindrical portion 10a by the extension portions 6d in the vicinity of the three ribs 6c. By doing in this way, even if the thickness of the extension portion 6d is not made too thick, the extension portion 6d in the vicinity of the rib 6c has a structure that is more resistant to deformation by the rib 6c than the other extension portion 6d portion, so spot welding 6e is performed. At this time, it is possible to prevent the extension portion 6d as the outer peripheral wall from being handled or deformed by spot welding, and the extension wall 6d does not become too thick, so that an insulation distance from the coil end 7c can be easily secured.

また、このように圧縮機の密閉容器１０の内容積を縮小させると、欧州圧力機器指令などの規制をクリアできやすいということだけでなく、密閉容器１０の耐圧力を上げ易いので、Ｒ４１０Ａ冷媒や炭酸ガス冷媒などいわゆる高圧冷媒を使用する冷凍サイクルの圧縮機において特に顕著な効果が得られる。   Further, when the internal volume of the sealed container 10 of the compressor is reduced in this way, not only the regulation such as the European Pressure Equipment Directive can be easily cleared, but also the pressure resistance of the sealed container 10 can be easily increased. A particularly remarkable effect is obtained in a compressor of a refrigeration cycle using a so-called high-pressure refrigerant such as a carbon dioxide refrigerant.

次に圧縮機の概略組立て手順について説明する。図４はこの発明の実施の形態１の圧縮機の概略組立て手順を説明するフローチャートである。まず、ＳＴＥＰ１０１で密閉容器１０を構成する筒部１０ａに電動機固定子７を焼き嵌めで固定し、ＳＴＥＰ１０２で主軸４を備えた圧縮要素３０を筒部１０ａに取付けた後、ＳＴＥＰ１０３で電動機回転子８を主軸４に通して固定し電動機固定子７内に配置する。次いでＳＴＥＰ１０４で副軸受け部６を筒部１０ａに挿入して主軸４の副軸部４ｄに副軸受け６ａを通し、副軸受け部６の外周壁である延長部６ｄをスポット溶接６ｅで筒部１０ａの外側から容易に溶接して副軸受け部６を筒部１０ａに溶接固定する。そしてＳＴＥＰ１０５で上蓋部６ｂと下蓋部６ｃをそれぞれ筒部１０ａの端部を塞ぐように円周溶接１０ｄ，１０ｅで筒部１０ａに溶接するようにしている。   Next, the general assembly procedure of the compressor will be described. FIG. 4 is a flowchart for explaining a schematic assembly procedure of the compressor according to the first embodiment of the present invention. First, in STEP 101, the motor stator 7 is fixed to the cylindrical portion 10a constituting the sealed container 10 by shrink fitting. In STEP 102, the compression element 30 having the main shaft 4 is attached to the cylindrical portion 10a, and then in STEP 103, the motor rotor 8 is fixed. Is fixed through the main shaft 4 and disposed in the motor stator 7. Next, in STEP 104, the secondary bearing portion 6 is inserted into the cylindrical portion 10a, the secondary bearing 6a is passed through the secondary shaft portion 4d of the main shaft 4, and the extension portion 6d, which is the outer peripheral wall of the secondary bearing portion 6, is spot welded 6e to the cylindrical portion 10a. The auxiliary bearing portion 6 is welded and fixed to the cylindrical portion 10a by easily welding from the outside. In STEP 105, the upper lid portion 6b and the lower lid portion 6c are welded to the cylindrical portion 10a by circumferential welding 10d and 10e so as to close the end portions of the cylindrical portion 10a.

このように、副軸受け部６を密閉容器１０の筒部１０ａに溶接してから副軸受け部６近傍の下蓋部１０ｃを筒部１０ａに溶接しているが、副軸受け部６の延長部６ｄでスポット溶接６ｅするようにしているため、密閉容器１０を縮めて内容積を縮小するように密閉容器１０の下蓋部１０ｃと副軸受け部６との距離を縮めて筒部１０ａと下蓋部１０ｃとを円周溶接１０ｅで溶接しても、円周溶接１０ｅ部分とスポット溶接６ｅ部分との距離（図３の寸法Ａ）が十分にあるので、円周溶接１０ｅ部分の溶接の歪などの影響を受けて副軸受け６が歪み主軸４の回転に影響を及ぼすことがない。   As described above, the sub-bearing portion 6 is welded to the cylindrical portion 10a of the sealed container 10 and then the lower lid portion 10c in the vicinity of the auxiliary bearing portion 6 is welded to the cylindrical portion 10a. Since the spot welding 6e is performed, the distance between the lower lid portion 10c of the hermetic container 10 and the sub-bearing portion 6 is shortened so that the inner volume is reduced by shrinking the hermetic container 10, and the cylindrical portion 10a and the lower lid portion are reduced. 10c is welded by circumferential welding 10e, since there is a sufficient distance (dimension A in FIG. 3) between the circumferential welding 10e portion and the spot welding 6e portion, such as welding distortion of the circumferential welding 10e portion. Under the influence, the secondary bearing 6 does not affect the rotation of the distortion main shaft 4.

この実施の形態に係る圧縮機は、筒部１０ａと筒部１０ａの端部に円周溶接１０ｄ，１０ｅする蓋部１０ｂ，１０ｃとを備えた密閉容器１０と、密閉容器１０内に設けられ電動機回転子８と電動機固定子７とを有する電動機要素４０により駆動されて冷媒を圧縮する圧縮要素３０と、電動機要素４０を挟んだ圧縮要素３０の反対側に設けられて電動要機素４０により回転する主軸４を回転自在に軸支する副軸受け部６と、副軸受け部６近傍の蓋部１０ｃと筒部１０ａとの円周溶接１０ｅ部分とは反対側に副軸受け部６の外周部６ｂを延長した延長部６ｄと、を備え、副軸受け部６を延長部６ｄで密閉容器１０の筒部１０ａに固定したので、副軸受け部６への密閉容器１０の蓋部１０ｃと筒部１０ａとの円周溶接１０ｅによる歪の影響を防止でき、また、密閉容器１０の蓋部１０ｃと筒部１０ａとの円周溶接１０ｅ部分から副軸受け部６までの距離を短くして密閉容器１０の筒部１０ａ長さを短くすることができ、安価に密閉容器１０の容積を縮小できる効果がある。   The compressor according to this embodiment includes a sealed container 10 provided with a cylindrical portion 10a and lid portions 10b and 10c that are circumferentially welded 10d and 10e at the ends of the cylindrical portion 10a, and an electric motor provided in the sealed container 10. A compression element 30 that is driven by an electric motor element 40 having a rotor 8 and an electric motor stator 7 to compress the refrigerant, and is provided on the opposite side of the compression element 30 across the electric motor element 40 and is rotated by an electric motor element 40. The outer peripheral portion 6b of the sub-bearing portion 6 is provided on the opposite side of the sub-bearing portion 6 that rotatably supports the main shaft 4 and the circumferential weld 10e portion between the lid portion 10c and the cylindrical portion 10a in the vicinity of the sub-bearing portion 6. And the auxiliary bearing portion 6 is fixed to the cylindrical portion 10a of the sealed container 10 by the extended portion 6d. Therefore, the lid portion 10c and the cylindrical portion 10a of the sealed container 10 to the auxiliary bearing portion 6 are provided. Prevents the effects of distortion caused by circumferential welding 10e Moreover, the distance from the circumferential weld 10e portion between the lid portion 10c of the sealed container 10 and the cylindrical portion 10a to the auxiliary bearing portion 6 can be shortened, and the length of the cylindrical portion 10a of the sealed container 10 can be shortened. In addition, the volume of the sealed container 10 can be reduced.

また、この実施の形態に係る圧縮機は、筒部１０ａと筒部１０ａの端部に円周溶接１０ｄ，１０ｅする蓋部１０ｂ，１０ｃとを備えた密閉容器１０と、密閉容器１０内に設けられ電動機回転子８と電動機固定子７とを有する電動機要素４０により駆動されて冷媒を圧縮する圧縮要素３０と、電動機要素４０を挟んだ圧縮要素３０の反対側に設けられて電動機要素４０により回転する主軸４を回転自在に軸支する副軸受け部６と、副軸受け部６側の電動機固定子４０のコイルエンド７ｃと絶縁距離を隔てるとともにコイルエンド７ｃの側方位置まで副軸受け部６の外周部６ｂを延長した延長部６ｄと、を備え、コイルエンド７ｃの側方の延長部６ｄで副軸受け部６を密閉容器１０の筒部１０ａに固定したので、副軸受け部６への密閉容器１０の蓋部１０ｃと筒部１０ａとの円周溶接１０ｅによる歪の影響を防止でき、また、密閉容器１０の蓋部１０ｃと筒部１０ａとの円周溶接１０ｅ部分から副軸受け部６までの距離を短くして密閉容器１０の筒部１０ａ長さを短くすることができ、安価に密閉容器の容積を縮小できる効果がある。   Further, the compressor according to this embodiment is provided with a sealed container 10 provided with a cylinder part 10a and lid parts 10b and 10c that are circumferentially welded 10d and 10e at the ends of the cylinder part 10a. The compressor element 30 is driven by the motor element 40 having the motor rotor 8 and the motor stator 7 and compresses the refrigerant, and is provided on the opposite side of the compression element 30 across the motor element 40 and is rotated by the motor element 40. The sub-bearing portion 6 that rotatably supports the main shaft 4 and the coil end 7c of the motor stator 40 on the sub-bearing portion 6 side are separated from each other by an insulation distance and the outer periphery of the sub-bearing portion 6 to the side position of the coil end 7c. An extension portion 6d obtained by extending the portion 6b, and the secondary bearing portion 6 is fixed to the cylindrical portion 10a of the sealed container 10 by the lateral extension portion 6d of the coil end 7c. of The influence of distortion due to the circumferential welding 10e between the portion 10c and the cylindrical portion 10a can be prevented, and the distance from the circumferential welding 10e portion between the lid portion 10c of the sealed container 10 and the cylindrical portion 10a to the auxiliary bearing portion 6 is shortened. Thus, the length of the cylindrical portion 10a of the sealed container 10 can be shortened, and the volume of the sealed container can be reduced at a low cost.

また、副軸受け部６の外周部６ｄと中心部の副軸受け６ａとを半径方向に繋ぐ複数のリブ６ｃを備え、リブ６ｃ近傍の延長部６ｄで副軸受け部６を密閉容器１０の筒部１０ａにスポット溶接６ｅで固定したので、スポット溶接６ｅ部分の延長部６ｄが強い構造のためスポット溶接６ｅによる副軸受け部６の変形を防止できる効果がある。   In addition, a plurality of ribs 6c that connect the outer peripheral portion 6d of the sub-bearing portion 6 and the central sub-bearing 6a in the radial direction are provided, and the sub-bearing portion 6 is connected to the cylindrical portion 10a of the sealed container 10 by the extension portion 6d in the vicinity of the rib 6c. Since the extension 6d of the spot weld 6e portion is strong, the deformation of the sub-bearing portion 6 due to the spot weld 6e can be prevented.

また、副軸受け部６を鋳鉄で形成し、副軸受け部６を密閉容器１０の筒部１０ａに筒部１０ａの外側からスポット溶接で固定したので、副軸受け部６の筒部１０ａへの溶接性がよく、鋳物成形で安価に副軸受け部６を得られる効果がある。   Further, since the secondary bearing portion 6 is formed of cast iron, and the secondary bearing portion 6 is fixed to the cylindrical portion 10a of the sealed container 10 by spot welding from the outside of the cylindrical portion 10a, the weldability of the auxiliary bearing portion 6 to the cylindrical portion 10a. The secondary bearing portion 6 can be obtained at low cost by casting.

また、この実施の形態による圧縮機の組立方法は、密閉容器１０の筒部１０に電動機要素４０と電動機要素４０により駆動されて冷媒を圧縮する圧縮要素３０を固定するステップＳＴＥＰ１０１〜１０３と、電動機要素４０を挟んだ圧縮要素３０の反対側に主軸４を回転自在に軸支する副軸受け部６を筒部１０ａに固定するステップＳＴＥＰ１０４と、副軸受け部６近傍で筒部１０ａを覆う蓋部１０ｃを筒部１０ａに円周溶接１０ｅするステップＳＴＥＰ１０５と、を備えた圧縮機の組立方法であって、副軸受け部６近傍の蓋部１０ｃと筒部１０ａとの円周溶接１０ｅ部分とは反対側に副軸受け部６の外周部６ｂを延長した延長部６ｄを設け、副軸受け部６を延長部６ｄで密閉容器１０の筒部１０ａにスポット溶接６で固定するので、副軸受け部６への密閉容器１０の蓋部１０ｃと筒部１０ａとの円周溶接１０ｅによる歪みの影響を防止でき、また、密閉容器１０の蓋部１０ｃと筒部１０ａとの円周溶接１０ｅ部分から副軸受け部６までの距離を短くして密閉容器１０の長さを短くすることができ、安価に密閉容器１０の容積を縮小できる圧縮機を組立てできる効果がある。   In addition, the compressor assembly method according to this embodiment includes the electric motor element 40 and steps STEP 101 to 103 for fixing the compression element 30 that is driven by the electric motor element 40 and compresses the refrigerant to the cylindrical portion 10 of the sealed container 10. Step STEP 104 for fixing the sub-bearing portion 6 that rotatably supports the main shaft 4 to the cylindrical portion 10a on the opposite side of the compression element 30 across the element 40, and a lid portion 10c that covers the cylindrical portion 10a in the vicinity of the sub-bearing portion 6. A step STEP 105 of circumferential welding 10e to the cylindrical portion 10a, and a compressor assembling method, the opposite side of the circumferential welding 10e portion between the lid portion 10c near the auxiliary bearing portion 6 and the cylindrical portion 10a Since an extension 6d extending the outer peripheral portion 6b of the sub-bearing portion 6 is provided to the sub-bearing portion 6 and the extension portion 6d is fixed to the cylindrical portion 10a of the sealed container 10 by spot welding 6, the sub-bearing The influence of distortion due to circumferential welding 10e between the lid portion 10c of the sealed container 10 and the cylindrical portion 10a on the portion 6 can be prevented, and from the circumferential welding 10e portion between the lid portion 10c of the sealed container 10 and the cylindrical portion 10a. The distance to the sub-bearing portion 6 can be shortened to shorten the length of the sealed container 10, and there is an effect that a compressor capable of reducing the volume of the sealed container 10 can be assembled at low cost.

図５はこの発明の実施の形態１における他の例を示す図３に相当する圧縮機の副軸受け部分の要部拡大断面図である。上記実施の形態では副軸受け部６を筒部１０ａにスポット溶接６ｅで固定したものを示したが、図５に示すように副軸受け部６を筒部１０ａに焼き嵌めで固定してもよい。その場合は外周部６ｂの延設部６ｄの上部のみを焼ばめ部６ｆとして、焼き嵌め部６ｆで筒部１０ａに副軸受け部６を固定することで、筒部１０ａと下蓋部１０ｃとの円周溶接１０ｅ部分から副軸受け部６の筒部１０ａへの固定部分までの十分な距離を同様に確保することができる。   FIG. 5 is an enlarged cross-sectional view of the main part of the sub-bearing portion of the compressor corresponding to FIG. 3 showing another example in the first embodiment of the present invention. In the above embodiment, the secondary bearing portion 6 is fixed to the cylindrical portion 10a by spot welding 6e. However, as shown in FIG. 5, the secondary bearing portion 6 may be fixed to the cylindrical portion 10a by shrink fitting. In that case, only the upper part of the extending part 6d of the outer peripheral part 6b is used as the shrink-fitting part 6f, and the sub-bearing part 6 is fixed to the cylindrical part 10a by the shrink-fitting part 6f, so that the cylindrical part 10a and the lower lid part 10c A sufficient distance from the circumferential weld 10e portion to the fixed portion of the sub-bearing portion 6 to the cylindrical portion 10a can be similarly secured.

上記の実施の形態では圧縮機として、高圧シェルタイプ（高圧密閉容器）のフレームコンプライアント形スクロール圧縮機を示したが、副軸受け部６を設けたものであれば他の形態のスクロール圧縮機やロータリー圧縮機、及びその他の圧縮機でも同様の効果を得ることができる。また、上記の実施の形態では縦置き形の圧縮機の例を示したが横置き形の圧縮機であってもよい。   In the above embodiment, a high-pressure shell type (high-pressure sealed container) frame compliant scroll compressor is shown as the compressor. However, as long as the auxiliary bearing unit 6 is provided, other types of scroll compressors, The same effect can be obtained with a rotary compressor and other compressors. Moreover, although the example of the vertical type compressor was shown in said embodiment, a horizontal type compressor may be used.

この発明の実施の形態１におけるフレームコンプライアント形スクロール圧縮機の縦断面図である。It is a longitudinal cross-sectional view of the frame compliant scroll compressor in Embodiment 1 of this invention. この発明の実施の形態１における図１に示した圧縮機の副軸受け部の斜視図である。It is a perspective view of the sub-bearing part of the compressor shown in FIG. 1 in Embodiment 1 of this invention. この発明の実施の形態１における図１に示した圧縮機の副軸受け部付近の要部拡大断面図である。It is a principal part expanded sectional view of the sub bearing part vicinity of the compressor shown in FIG. 1 in Embodiment 1 of this invention. この発明の実施の形態１における圧縮機の概略組立て手順を説明するフローチャートである。It is a flowchart explaining the general assembly procedure of the compressor in Embodiment 1 of this invention. この発明の実施の形態１における他の例を示す図３に相当する圧縮機の副軸受け部付近の要部拡大断面図である。FIG. 5 is an enlarged cross-sectional view of a main part near a sub-bearing portion of a compressor corresponding to FIG. 3 and showing another example in Embodiment 1 of the present invention.

符号の説明Explanation of symbols

１ 固定スクロール、１ａ 台板部、１ｂ 板状渦巻歯、１ｃ オルダム案内溝、１ｄ 圧縮室、１ｆ 吐出ポート、２ 揺動スクロール、２ａ 台板部、２ｂ 板状渦巻歯、２ｃ 揺動軸受け、２ｄ スラスト面、２ｅ オルダム案内溝、２ｆ ボス部、２ｊ 抽出孔、３ コンプライアントフレーム、３ａ スラスト軸受け、３ｃ 主軸受け、３ｄ 上側円筒面、３ｅ 下側円筒面、３ｋ スラスト軸受け側開口部、３ｈ 副主軸受け、３ｓ 連絡通路、４ 主軸、４ｂ 揺動軸部、４ｃ 主軸部、４ｄ 副軸部、４ｅ 主軸バランサ、５ 潤滑油、６ 副軸受け部、６ａ 副軸受け、６ｂ 外周部、６ｃ リブ、６ｄ 延長部、６ｅ スポット溶接、６ｆ 焼き嵌め部、７ 電動機固定子、７ａ コア部、７ｂ コイルエンド、７ｃ コイルエンド８ 電動機回転子、９ オルダムリング、９ａ 揺動スクロール側爪、９ｃ 固定スクロール側爪、 １０ 密閉容器、１０ａ 筒部、１０ｂ 上蓋部、１０ｃ 下蓋部、 １０ｄ 円周溶接、１０ｅ 円周溶接、１０ｆ 吸入管、１０ｇ 吐出管、１０ｈ ガラス端子、１５ ガイドフレーム、１５ａ 上側円筒面、１５ｂ 下側円筒面、１５ｃ 切り欠き部、１５ｆ フレーム空間、１５ｇ 外周面、１６ａ 上側シール材、１６ｂ 下側シール材、３０圧縮要素、４０電動機要素。   DESCRIPTION OF SYMBOLS 1 Fixed scroll, 1a Base plate part, 1b Plate-shaped spiral tooth, 1c Oldham guide groove, 1d Compression chamber, 1f Discharge port, 2a Rocking scroll, 2a Base plate part, 2b Plate-shaped spiral tooth, 2c Swing bearing, 2d Thrust surface, 2e Oldham guide groove, 2f boss, 2j extraction hole, 3 compliant frame, 3a thrust bearing, 3c main bearing, 3d upper cylindrical surface, 3e lower cylindrical surface, 3k thrust bearing side opening, 3h secondary main shaft 3s connecting passage, 4 main shaft, 4b swinging shaft portion, 4c main shaft portion, 4d sub shaft portion, 4e main shaft balancer, 5 lubricating oil, 6 sub bearing portion, 6a sub bearing, 6b outer peripheral portion, 6c rib, 6d extension Part, 6e spot welding, 6f shrink fit part, 7 motor stator, 7a core part, 7b coil end, 7c coil end 8 motor rotation , 9 Oldham ring, 9a Oscillating scroll side claw, 9c Fixed scroll side claw, 10 Airtight container, 10a cylinder part, 10b upper lid part, 10c lower lid part, 10d circumferential welding, 10e circumferential welding, 10f suction pipe, 10g Discharge pipe, 10h glass terminal, 15 guide frame, 15a upper cylindrical surface, 15b lower cylindrical surface, 15c notch, 15f frame space, 15g outer peripheral surface, 16a upper sealing material, 16b lower sealing material, 30 compression element, 40 motor elements.

Claims (5)

筒部と前記筒部の端部に円周溶接する蓋部とを備えた密閉容器と、前記密閉容器内に設けられ電動機回転子と電動機固定子とを有する電動機要素により駆動されて冷媒を圧縮する圧縮要素と、前記電動機要素を挟んだ前記圧縮要素の反対側に設けられて前記電動機要素により回転する主軸を回転自在に軸支する副軸受け部と、前記副軸受け部近傍の前記蓋部と前記筒部との円周溶接部分とは反対側に前記副軸受け部の外周部を延長した延長部と、を備え、前記副軸受け部を前記延長部で前記密閉容器の前記筒部に固定したことを特徴とする圧縮機。 A refrigerant is compressed by being driven by an electric motor element having a cylindrical portion and a lid portion that is circumferentially welded to an end portion of the cylindrical portion, and an electric motor rotor and an electric motor stator that are provided in the closed vessel. A compression element, a sub-bearing portion that is provided on the opposite side of the compression element across the electric motor element and rotatably supports a main shaft that is rotated by the electric motor element, and the lid portion in the vicinity of the auxiliary bearing portion An extension part extending the outer peripheral part of the auxiliary bearing part on the opposite side of the circumferential welded part with the cylindrical part, and the auxiliary bearing part is fixed to the cylindrical part of the sealed container with the extension part A compressor characterized by that. 筒部と前記筒部の端部に円周溶接する蓋部とを備えた密閉容器と、前記密閉容器内に設けられ電動機回転子と電動機固定子とを有する電動機要素により駆動されて冷媒を圧縮する圧縮要素と、前記電動機要素を挟んだ前記圧縮要素の反対側に設けられて前記電動機要素により回転する主軸を回転自在に軸支する副軸受け部と、前記副軸受け部側の前記電動機固定子のコイルエンドと絶縁距離を隔てるとともに前記コイルエンドの側方位置まで前記副軸受け部の外周部を延長した延長部と、を備え、前記コイルエンドの側方の前記延長部で前記副軸受け部を前記密閉容器の前記筒部に固定したことを特徴とする圧縮機。 A refrigerant is compressed by being driven by an electric motor element having a cylindrical portion and a lid portion that is circumferentially welded to an end portion of the cylindrical portion, and an electric motor rotor and an electric motor stator that are provided in the closed vessel. A compression element, a sub-bearing portion that is provided on the opposite side of the compression element across the motor element and rotatably supports a main shaft that is rotated by the motor element, and the motor stator on the sub-bearing portion side And extending the outer peripheral portion of the sub-bearing portion to a lateral position of the coil end, and extending the sub-bearing portion at the extension portion on the side of the coil end. The compressor fixed to the said cylinder part of the said airtight container. 前記副軸受け部の前記外周部と中心部の副軸受けとを半径方向に繋ぐ複数のリブを備え、前記リブ近傍の前記延長部で前記副軸受け部を前記密閉容器の前記筒部にスポット溶接で固定したことを特徴とする請求項１または請求項２に記載の圧縮機。 A plurality of ribs that connect the outer peripheral portion of the sub-bearing portion and the sub-bearing of the central portion in the radial direction, and the auxiliary bearing portion is spot welded to the cylindrical portion of the sealed container at the extension portion in the vicinity of the rib. The compressor according to claim 1 or 2, wherein the compressor is fixed. 前記副軸受け部を鋳鉄で形成し、前記副軸受け部を前記密閉容器の前記筒部に前記筒部の外側からスポット溶接で固定したことを特徴とする請求項１ないし請求項３のいずれか１項に記載の圧縮機。 The said secondary bearing part is formed with cast iron, The said secondary bearing part was fixed to the said cylindrical part of the said airtight container by the spot welding from the outer side of the said cylindrical part, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. The compressor according to item. 密閉容器の筒部に電動機要素と前記電動機要素により駆動されて冷媒を圧縮する圧縮要素を固定するステップと、前記電動機要素を挟んだ前記圧縮要素の反対側に主軸を回転自在に軸支する副軸受け部を前記筒部に固定するステップと、前記副軸受け部近傍で前記筒部を覆う蓋部を前記筒部に円周溶接するステップと、を備えた圧縮機の組立方法であって、前記副軸受け部近傍の前記蓋部と前記筒部との円周溶接部分とは反対側に前記副軸受け部の外周部を延長した延長部を設け、前記副軸受け部を前記延長部で前記密閉容器の前記筒部にスポット溶接で固定することを特徴とする圧縮機の組立方法。 A step of fixing an electric motor element and a compression element that is driven by the electric motor element and compresses a refrigerant to a cylindrical portion of the hermetic container; and a sub-axis that rotatably supports the main shaft on the opposite side of the compression element across the electric motor element A method for assembling a compressor, comprising: fixing a bearing portion to the tube portion; and circumferentially welding a lid portion covering the tube portion in the vicinity of the sub-bearing portion to the tube portion, An extension part extending the outer peripheral part of the auxiliary bearing part is provided on the opposite side of the circumferentially welded part between the lid part and the cylindrical part in the vicinity of the auxiliary bearing part, and the auxiliary bearing part is formed by the extension part in the sealed container. A method for assembling a compressor, comprising: spot welding to the cylindrical portion of the compressor.
JP2005111599A 2005-04-08 2005-04-08 Compressor, method for assembling compressor Pending JP2006291787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005111599A JP2006291787A (en) 2005-04-08 2005-04-08 Compressor, method for assembling compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005111599A JP2006291787A (en) 2005-04-08 2005-04-08 Compressor, method for assembling compressor

Publications (1)

Publication Number Publication Date
JP2006291787A true JP2006291787A (en) 2006-10-26

Family

ID=37412619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005111599A Pending JP2006291787A (en) 2005-04-08 2005-04-08 Compressor, method for assembling compressor

Country Status (1)

Country Link
JP (1) JP2006291787A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009079531A (en) * 2007-09-26 2009-04-16 Sanden Corp Fluid machine
WO2012073479A1 (en) * 2010-11-29 2012-06-07 ダイキン工業株式会社 Compressor casing
WO2020199583A1 (en) * 2019-04-01 2020-10-08 艾默生环境优化技术(苏州)有限公司 Compressor
WO2021019714A1 (en) * 2019-07-31 2021-02-04 日立ジョンソンコントロールズ空調株式会社 Hermetic compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009079531A (en) * 2007-09-26 2009-04-16 Sanden Corp Fluid machine
WO2012073479A1 (en) * 2010-11-29 2012-06-07 ダイキン工業株式会社 Compressor casing
JP2012117380A (en) * 2010-11-29 2012-06-21 Daikin Industries Ltd Compressor casing
WO2020199583A1 (en) * 2019-04-01 2020-10-08 艾默生环境优化技术(苏州)有限公司 Compressor
WO2021019714A1 (en) * 2019-07-31 2021-02-04 日立ジョンソンコントロールズ空調株式会社 Hermetic compressor

Similar Documents

Publication Publication Date Title
JP5216627B2 (en) Scroll compressor
JP4780971B2 (en) Rotary compressor
US20120171067A1 (en) Hermetic compressor and manufacturing method thereof
CN1963224A (en) Rotary compressor
JP2007146736A (en) Rotary compressor
JP5446967B2 (en) Compressor and manufacturing method thereof
JP2006291787A (en) Compressor, method for assembling compressor
US20140017107A1 (en) Scroll compressor
JP6594523B2 (en) Scroll compressor and refrigeration cycle apparatus
JPH11182433A (en) Enclosed compressor
JP7350101B2 (en) scroll compressor
JP4752812B2 (en) Pressure vessel
WO2018138772A1 (en) Closed-type compressor
JP5028243B2 (en) Rotary compressor and method for manufacturing the same
JP3723337B2 (en) Scroll compressor
JP2006200374A (en) Rotary compressor
JP3786105B2 (en) Scroll compressor
JP5134886B2 (en) Hermetic electric compressor
KR100430889B1 (en) Hermetic Compressor
WO2022107212A1 (en) Hermetic electric compressor
KR100279639B1 (en) Subframe Structure of Scroll Compressor
JP2671875B2 (en) Electric compressor
WO2020213155A1 (en) Scroll compressor
US6454550B1 (en) Weld strengthening component for sealed compressors
WO2021019714A1 (en) Hermetic compressor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070627

A977 Report on retrieval

Effective date: 20090925

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Effective date: 20090929

Free format text: JAPANESE INTERMEDIATE CODE: A131

A02 Decision of refusal

Effective date: 20100209

Free format text: JAPANESE INTERMEDIATE CODE: A02