JP2005248938A - Sealed type scroll compressor - Google Patents

Sealed type scroll compressor Download PDF

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JP2005248938A
JP2005248938A JP2004251646A JP2004251646A JP2005248938A JP 2005248938 A JP2005248938 A JP 2005248938A JP 2004251646 A JP2004251646 A JP 2004251646A JP 2004251646 A JP2004251646 A JP 2004251646A JP 2005248938 A JP2005248938 A JP 2005248938A
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frame
scroll compressor
chamber
compressor
stator
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Nobuo Abe
信雄 阿部
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Unipulse Corp
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Unipulse Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a scroll compressor, in which intrusion of weld sputter into a sealed container is prevented to improve operation reliability. <P>SOLUTION: This sealed scroll compressor is provided with a sealed container having a cover chamber, a compression mechanism part provided inside the sealed container, and comprising a fixed scroll, a rotary scroll, and a frame supporting these, and a motor part provided in the sealed container, and provided with a rotor at a center part and a stator disposed around it. The compression mechanism part and the motor part are integrated with each other by a coupling means to form a compressor main body unit. A downward counter-placement surface is formed at a bottom part or a circumferential edge of the compressor main body unit. In an inner circumferential surface of the sealed container, a placement surface is formed to receive the counter-placement surface of the compressor main body unit. The compressor main body unit contained in the sealed container as the counter-placement surface is placed on the placement surface is pressed by an end surface of the cover chamber. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、スクロール圧縮機の組立構造に関する。   The present invention relates to an assembly structure of a scroll compressor.

従来のスクロール圧縮機の構造は、特開平6-173877号の図1に見られるが、それを簡略化した図12に説明する。
図12は、スクロール圧縮機の従来の構造の一例を示す縦断面図で、密閉容器31は、円筒状のケース31aにフタチャンバ31bとソコチャンバ31cが挿入され夫々溶接されて形成されている。この密閉容器31内に、圧縮機構部32が上部に、電動機部40が下部に収納された構造で、密閉容器の最下部には潤滑油45が封入されている。
The structure of a conventional scroll compressor can be seen in FIG. 1 of Japanese Patent Laid-Open No. 6-173877, and will be described with reference to FIG.
FIG. 12 is a longitudinal sectional view showing an example of a conventional structure of a scroll compressor. The sealed container 31 is formed by inserting a lid chamber 31b and a saw chamber 31c into a cylindrical case 31a and welding them. In this sealed container 31, the compression mechanism part 32 is stored in the upper part and the electric motor part 40 is stored in the lower part, and lubricating oil 45 is enclosed in the lowermost part of the sealed container.

ここで、従来公知スクロール圧縮機の組立方法を説明する。
圧縮機構部32はフレーム33を中核とし、このフレーム33の主軸受33aに、電動機40の回転子40aの回転力を伝達し、その偏心部34aで旋回スクロール35を公転させるクランク軸34の主クランク軸部34bを挿入し、更に、前述旋回スクロール35の自転防止のためのオルダムリング36をフレーム33のキー溝(図示せず)に支承させた後、前述の旋回スクロール35のボス部内径35cとクランク軸34の偏心部34aと、旋回スクロール35のキー溝35dとオルダムリング36のキー36aを嵌合し、旋回スクロール35をフレーム33の段差部33bに収納する。
Here, a method for assembling a conventionally known scroll compressor will be described.
The compression mechanism 32 has a frame 33 as a core, transmits the rotational force of the rotor 40a of the electric motor 40 to the main bearing 33a of the frame 33, and revolves the orbiting scroll 35 at its eccentric portion 34a. After inserting the shaft portion 34b and supporting the Oldham ring 36 for preventing the rotation of the orbiting scroll 35 in the key groove (not shown) of the frame 33, the inner diameter 35c of the boss portion of the orbiting scroll 35 and The eccentric portion 34 a of the crankshaft 34, the key groove 35 d of the orbiting scroll 35 and the key 36 a of the Oldham ring 36 are fitted, and the orbiting scroll 35 is accommodated in the step portion 33 b of the frame 33.

次に、前記旋回スクロール35の端板35a上に渦巻状に形成したラップ35bと、固定スクロール37の端板37a上に渦巻状に形成したラップ37bを噛み合わせて相互の芯出しを行いながら、固定スクロール37をボルト39によってフレーム33に締結し圧縮室38を構成し、圧縮機構部32の組立を終了する。
電動機部40は、前述の圧縮機構部32から突出したクランク軸34の主クランク軸部34bに、回転子40aを圧入などにより接合して圧縮機構部32と一体にしておく。電動機40の固定子40bは、密閉容器31を形成するケース31a内径に焼嵌めなどによりその外径部を接合し、この固定子40bと回転子40aの位置を合わせ、固定子40bの内径と回転子40aの外径間にギャップゲージ(図示せず)を挿入した状態で、ケース31a内径と、これに適宜隙間で近接して支持したフレーム33の外径間を複数箇所点付け溶接(点付け溶接部41)で連繋した後、前述のギャップゲージを抜いてエアギャップを確保する。
Next, the wrap 35b formed in a spiral shape on the end plate 35a of the orbiting scroll 35 and the wrap 37b formed in a spiral shape on the end plate 37a of the fixed scroll 37 are meshed to perform mutual centering, The fixed scroll 37 is fastened to the frame 33 with bolts 39 to form the compression chamber 38, and the assembly of the compression mechanism 32 is finished.
In the electric motor unit 40, a rotor 40a is joined to the main crankshaft portion 34b of the crankshaft 34 protruding from the compression mechanism portion 32 by press-fitting or the like, and is integrated with the compression mechanism portion 32. The stator 40b of the electric motor 40 is joined to the inner diameter of the case 31a forming the hermetic container 31 by shrink fitting or the like, and the positions of the stator 40b and the rotor 40a are aligned to rotate the inner diameter and rotation of the stator 40b. In a state in which a gap gauge (not shown) is inserted between the outer diameters of the child 40a, spot welding (dotting) is performed between the inner diameter of the case 31a and the outer diameter of the frame 33 supported in close proximity to the inner diameter of the case 31a. After connecting with the welded portion 41), the above-mentioned gap gauge is pulled out to secure an air gap.

更に、副軸受42の取付は、前記の密閉容器31aの内径に副軸受支え43を接合し点付け溶接(点付け溶接部46)した後、副軸受42をクランク軸34の副クランク軸部34cと嵌合し芯出ししながら副軸受支え43に接合し、ボルト39によって締結する。
その後、吸込パイプ44とフタチャンバ31bの吸込ツギパイプ31dを嵌合しながら、ケース31aとフタチャンバ31bを圧入し、また、ケース31aとソコチャンバ31cを圧入して、夫々の嵌合部を円周溶接(円周溶接部47)し、密閉形スクロール圧縮機が完成する。
この従来公知スクロール圧縮機では、スクロール圧縮機組立の最終工程であるケースとソコチャンバの溶接工程で、その溶接部と副軸受支えの距離が近接しているため、溶接熱の歪で副軸受部に芯ずれを発生し、運転入力の上昇や、ロック現象を生じる場合があった。
Further, the auxiliary bearing 42 is attached by joining the auxiliary bearing support 43 to the inner diameter of the sealed container 31a and performing spot welding (dot welding section 46), and then attaching the auxiliary bearing 42 to the secondary crankshaft section 34c of the crankshaft 34. Are joined to the auxiliary bearing support 43 while being centered and fastened by a bolt 39.
Then, while fitting the suction pipe 44 and the suction hook pipe 31d of the lid chamber 31b, the case 31a and the lid chamber 31b are press-fitted, and the case 31a and the saw chamber 31c are press-fitted, and the respective fitting portions are circumferentially welded (circle The peripheral scroll 47) and the hermetic scroll compressor is completed.
In this conventionally known scroll compressor, the distance between the welded part and the auxiliary bearing support is close in the welding process of the case and the saw chamber, which is the final process of assembling the scroll compressor. In some cases, misalignment occurred, resulting in an increase in driving input or a lock phenomenon.

また、ケースの内径と、フレームの外径間に、ケース内径の真直度や圧縮機構部の同心度の誤差を吸収するに足る隙間を持たせ、ケースとフレームをケースの外側から複数の点付け溶接で連携することから、溶接時に飛散したスパッタが密閉容器内に多量に侵入する。また、ケースと副軸受支えの点付け溶接、ケースとフタチャンバ、ケースとソコチャンバの円周溶接などで発生する溶接スパッタ(図示せず)は、溶接部分の隙間から密閉容器内に侵入し、密閉容器の下部に落下して、圧縮機の運転とともに潤滑油と一緒に各摺動部に吸い上げられ、各摺動部の僅少なクリアランスに侵入し、摺動部の齧りによるロック事故などを誘引し運転不能になる場合があった。   In addition, there is a gap between the case inner diameter and the outer diameter of the frame that is sufficient to absorb errors in the straightness of the case inner diameter and the concentricity of the compression mechanism. Since it cooperates by welding, a large amount of spatter scattered during welding penetrates into the sealed container. In addition, welding spatter (not shown) generated by spot welding of the case and auxiliary bearing support, circumferential welding of the case and lid chamber, case and socochamber, etc. penetrates into the sealed container through the gap between the welded parts, and the sealed container When the compressor is operated, it is sucked into each sliding part together with the lubricating oil, enters the slight clearance of each sliding part, and induces a lock accident due to the sliding of the sliding part. There were cases where it was impossible.

これを解消した構造の例は、特許第3403783号の図2に見られるが、それを図13に説明する。図13は、副軸受支えの固定構造の縦断面図である。副軸受支え43の下端部周面に沿ってフランジ部43aは一体に突設される。このフランジ部43aの直径は、ケース31aの内径と外径との間になるように形成される。また、ソコチャンバ31cの開口部の内径はケース31aの外径と一致し、さらにこの開口部と連設される位置に段付部31dが内径側に折り曲げ形成される。図示されるように副軸受支えのフランジ部43aはケース下端面とソコチャンバ段付部との間に挟持固定され、ケースとソコチャンバの嵌め合い部は溶接される。これにより、ケースと副軸受支えの溶接は不要となる。しかし、この構造でもケースとフレームの溶接、ケースとフタ、ソコチャンバの溶接加工は依然として残るため、スパッタの浸入によるロック事故を大きく減少させることはできない。
特開平6−173877号公報の図1 特許第3403783号公報の図2
An example of a structure that eliminates this can be seen in FIG. 2 of Japanese Patent No. 3340833, which is illustrated in FIG. FIG. 13 is a longitudinal sectional view of a fixing structure of the auxiliary bearing support. The flange portion 43 a is integrally projected along the peripheral surface of the lower end portion of the auxiliary bearing support 43. The flange portion 43a has a diameter between the inner diameter and the outer diameter of the case 31a. In addition, the inner diameter of the opening of the saw chamber 31c matches the outer diameter of the case 31a, and a stepped portion 31d is formed to be bent to the inner diameter side at a position connected to the opening. As shown in the figure, the flange portion 43a of the auxiliary bearing support is sandwiched and fixed between the lower end surface of the case and the stepped portion of the socochamber, and the fitting portion of the case and the socochamber is welded. This eliminates the need to weld the case and the auxiliary bearing support. However, even with this structure, the case-frame welding, the case-lid, and the saw-chamber welding process still remain, so that it is not possible to greatly reduce lock accidents due to spattering.
FIG. 1 of JP-A-6-173877 FIG. 2 of Japanese Patent No. 3403783

本発明は、スクロール圧縮機の運転信頼性向上のために、溶接によるスパッタの発生と侵入量を低減することがその課題である。   An object of the present invention is to reduce spatter generation and intrusion due to welding in order to improve the operation reliability of the scroll compressor.

このような課題は、下記(1)〜(11)の本発明により解決できる。
(1)
フタチャンバを有する密閉容器、
この密閉容器の内部に設けられ、固定スクロールと旋回スクロールとこれらを支持するフレームを有する圧縮機構部、および
前記密閉容器内に設けられ、中央部の回転子とその周囲に配置された固定子を有する電動機部
を備えた密閉形スクロール圧縮機において、
前記圧縮機構部と電動機部を結合手段により一体化して、圧縮機本体ユニットを形成し、この圧縮機本体ユニットの底部または周縁に下向きの被載置面を形成するとともに、
前記密閉容器の内周面に、前記圧縮機本体ユニットの被載置面が載る載置面を形成し、
前記被載置面が載置面に載った状態で密閉容器内に収納された前記圧縮機本体ユニットを前記フタチャンバの端面で押圧するようになっている
ことを特徴とする密閉形スクロール圧縮機。
(2)
フレームの外径を電動機部の外径より大きく設定することにより前記被載置面を形成した上記(1)の密閉形スクロール圧縮機。
(3)
前記電動機部で駆動され、軸端で前記旋回スクロールを公転させる軸の一方が前記フレームに設けた主軸受で軸支され、他方が副軸受で軸支されており、前記固定子の端面と副軸受のフランジ間にスペーサを挟合して、固定子のボルト穴とスペーサの内径穴及び副軸受のフランジ部のボルト穴にボルトを通し、電動機の固定子とスペーサ及び副軸受を、同時にフレームのねじ穴に締結して、圧縮機本体ユニットを構成した上記(1)または(2)のスクロール圧縮機。
(4)
前記スペーサが前記副軸受と一体に形成されている上記(3)の密閉形スクロール圧縮機。
(5)
前記ボルトには、その頭部近傍に、副軸受組立後、副軸受のフランジ部と電動機の固定子のエンドコイル間で、電気的絶縁距離を取れる高さ寸法で、拡径スペーサ機能部が設けられ、これにより前記スペーサが構成され、しかも、前記ボルトには、前記拡径スペーサ機能部について両端に第1および第2ねじ部がそれぞれ形成されており、第1ねじ部によって電動機部のフレームへの固定を行い、第2ねじ部によって副軸受の固定を行うようにした上記(3)の密閉形スクロール圧縮機。
(6)
複数のボルトにより、固定子をフレームに回転子とのエアギャップを調整しながら結合した後、フレーム、固定子および副軸受の三者を他の複数のボルトにより結合した上記(3)〜(5)のいずれかの密閉形スクロール圧縮機。
(7)
前記密閉容器の周壁部が円筒状にされており、その所定高さ以下の部分を縮径部とし、これにより前記載置面を形成した上記(1)〜(6)のいずれかの密閉形スクロール圧縮機。
(8)
前記密閉容器の周壁部が円筒状にされており、その所定高さ位置の複数箇所を内方に窪ませ、これにより前記載置面を形成した上記(1)〜(6)のいずれかの密閉形スクロール圧縮機。
(9)
前記電動機の固定子の外周面の一部には凹み部となるコアカットが形成され、
このコアカットに対応する位置でソコチャンバの複数箇所を内方に窪ませ、
これにより前記載置面を形成した上記(1)〜(6)のいずれかの密閉形スクロール圧縮機。
(10)
前記密閉容器が、フタチャンバとソコチャンバで構成され、このソコチャンバが、円筒状の上部部材と、上部部材の外径に対応した内径を有する底付円筒状の下部部材で構成され、上部部材の下部が下部部材に所定長さ挿入された状態で溶接により予め接合されている上記(1)〜(9)のいずれかの密閉形スクロール圧縮機。
(11)
前記密閉容器が、フタチャンバとソコチャンバで構成され、ソコチャンバのフレームのフランジ部が挿入する部分の形状を楕円形状或いは複数の凹凸を有する非真円形状に成形し、その最小内法寸法はフレームのフランジ部外径より小さく、その最大内法寸法はフレームのフランジ部外径寸法より大きく形成し、しかもそれらの内法寸法の平均値はフレームのフランジ部の外径寸法より大きく形成されている上記(1)〜(10)のいずれかの密閉形スクロール圧縮機。
Such a problem can be solved by the present invention described in (1) to (11) below.
(1)
A sealed container having a lid chamber;
A compression mechanism having a fixed scroll, a revolving scroll, and a frame for supporting them, and a rotor disposed in the sealed container and disposed around the rotor In a hermetic scroll compressor having an electric motor part,
The compressor mechanism unit and the motor unit are integrated by a coupling means to form a compressor body unit, and a downward mounting surface is formed on the bottom or periphery of the compressor body unit,
On the inner peripheral surface of the sealed container, a mounting surface on which the mounting surface of the compressor body unit is mounted is formed,
A hermetic scroll compressor, wherein the compressor main body unit housed in a hermetic container is pressed by an end surface of the lid chamber in a state where the placement surface is placed on the placement surface.
(2)
The hermetic scroll compressor according to (1), wherein the mounting surface is formed by setting the outer diameter of the frame to be larger than the outer diameter of the electric motor section.
(3)
One of the shafts driven by the motor unit and revolving the orbiting scroll at the shaft end is pivotally supported by a main bearing provided on the frame, and the other is pivotally supported by a sub-bearing. A spacer is sandwiched between the bearing flanges, and bolts are passed through the bolt holes of the stator, the inner diameter holes of the spacers, and the bolt holes of the flanges of the auxiliary bearings. The scroll compressor according to (1) or (2), wherein the compressor body unit is configured by being fastened to a screw hole.
(4)
The hermetic scroll compressor according to (3), wherein the spacer is formed integrally with the auxiliary bearing.
(5)
In the vicinity of the head of the bolt, an enlarged spacer function part is provided in the vicinity of the head, with a height that allows an electrical insulation distance between the flange part of the auxiliary bearing and the end coil of the stator of the motor. Thus, the spacer is constituted, and the bolt is formed with first and second screw portions at both ends of the diameter-enlarged spacer function portion, and the first screw portion leads to the frame of the electric motor portion. The hermetic scroll compressor according to (3), wherein the secondary bearing is fixed by the second screw portion.
(6)
After the stator is coupled to the frame with a plurality of bolts while adjusting the air gap with the rotor, the three of the frame, the stator, and the auxiliary bearing are coupled with the other plurality of bolts (3) to (5) ) Any hermetic scroll compressor.
(7)
The sealed wall according to any one of the above (1) to (6), wherein the peripheral wall portion of the sealed container is cylindrical, and a portion having a predetermined height or less is used as a reduced diameter portion, thereby forming the placement surface. Scroll compressor.
(8)
Any of the above (1) to (6), wherein the peripheral wall portion of the sealed container is cylindrical, and a plurality of the predetermined height positions are recessed inwardly, thereby forming the placement surface. Hermetic scroll compressor.
(9)
A core cut that becomes a recess is formed in a part of the outer peripheral surface of the stator of the electric motor,
At the position corresponding to this core cut, several locations of the Soko chamber are recessed inward,
Thus, the hermetic scroll compressor according to any one of (1) to (6), wherein the placement surface is formed.
(10)
The sealed container includes a lid chamber and a saw chamber, and the saw chamber includes a cylindrical upper member and a bottomed cylindrical lower member having an inner diameter corresponding to the outer diameter of the upper member. The hermetic scroll compressor according to any one of (1) to (9), wherein the hermetic scroll compressor is joined in advance by welding in a state in which the lower member is inserted to a predetermined length.
(11)
The closed container is composed of a lid chamber and a saw chamber, and the shape of the portion into which the flange portion of the frame of the saw chamber is inserted is formed into an elliptical shape or a non-circular shape having a plurality of irregularities, and the minimum inner dimension is the flange of the frame The inner diameter is smaller than the outer diameter of the frame and the maximum inner dimension is larger than the outer diameter of the flange of the frame, and the average value of the inner dimensions is larger than the outer diameter of the flange of the frame. The hermetic scroll compressor according to any one of 1) to (10).

以下、本発明の実施の形態を図によって説明する。
図1は、本発明の密閉形スクロール圧縮機の構造の一例を示す縦断面図で、密閉容器1は、突起部分に相当する段付形状の底付円筒状に塑性成形されたソコチャンバ1aと、フタチャンバ1cから構成され、ソコチャンバ1aの段差部1bとこれに挿入するフタチャンバ1cの端面1d間に、固定スクロール8と電動機部11及び副軸受12の外径より大きい寸法の外径を有するフレーム4のフランジ部4aを挟合し、圧縮機構部3を上部に、電動機部11及び副軸受12を下部に配置収納し、ソコチャンバ1aとフタチャンバ1cを円周溶接して密閉容器としてスクロール圧縮機が形成されている。
その後、潤滑油18が密閉容器1下部にクランク軸5の先端が浸漬する状態で封入されている。
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a longitudinal sectional view showing an example of the structure of a hermetic scroll compressor according to the present invention. A hermetic container 1 includes a socochamber 1a that is plastically formed into a stepped cylindrical shape corresponding to a protruding portion, The frame 4 is composed of a lid chamber 1c, and has an outer diameter larger than the outer diameters of the fixed scroll 8, the motor part 11, and the auxiliary bearing 12 between the stepped portion 1b of the saw chamber 1a and the end surface 1d of the lid chamber 1c inserted therein. The flange portion 4a is sandwiched, the compression mechanism portion 3 is placed at the top, the motor portion 11 and the auxiliary bearing 12 are placed and housed at the bottom, and the scroll compressor is formed as a sealed container by circumferentially welding the saw chamber 1a and the lid chamber 1c. ing.
Thereafter, the lubricating oil 18 is sealed in a state where the tip of the crankshaft 5 is immersed in the lower part of the sealed container 1.

ここで、図1から図5で本発明のスクロール圧縮機の組立方法を説明する。
先ず、圧縮機本体2は、フレーム4を中核とし、このフレーム4の主軸受4bに、電動機11の回転子11aの回転力を伝達し、その偏心部5aで旋回スクロール6を公転させるクランク軸5の主クランク軸部5bを挿入し、更に、前述旋回スクロール6の自転防止のためのオルダムリング7をフレーム4のキー溝(図示せず)に支承させた後、前述の旋回スクロール6のボス部内径6aとクランク軸5の偏心部5a、及び旋回スクロール6のキー溝6bとオルダムリング7のキー7aをそれぞれ嵌合し、旋回スクロール6をフレーム4の段差部4cに収納する。
次に、前記旋回スクロール6の端板6c上に渦巻状に形成したラップ6dと、固定スクロール8の端板8a上に渦巻状に形成したラップ8bを噛み合わせて、相互に芯出しを行いながら、固定スクロール8をボルト9によってフレーム4のフランジ部4aの上面4dに締結し、圧縮室10を構成して圧縮機構部3の組立が完了する。
Here, the assembly method of the scroll compressor of the present invention will be described with reference to FIGS.
First, the compressor body 2 has a frame 4 as a core, transmits the rotational force of the rotor 11a of the motor 11 to the main bearing 4b of the frame 4, and revolves the orbiting scroll 6 at its eccentric portion 5a. The main crankshaft portion 5b is inserted, and the Oldham ring 7 for preventing the rotation of the orbiting scroll 6 is supported on the key groove (not shown) of the frame 4, and then the boss portion of the orbiting scroll 6 described above. The inner diameter 6 a and the eccentric portion 5 a of the crankshaft 5, the key groove 6 b of the orbiting scroll 6 and the key 7 a of the Oldham ring 7 are respectively fitted, and the orbiting scroll 6 is housed in the stepped portion 4 c of the frame 4.
Next, the wrap 6d formed in a spiral shape on the end plate 6c of the orbiting scroll 6 and the wrap 8b formed in a spiral shape on the end plate 8a of the fixed scroll 8 are engaged with each other while being centered. The fixed scroll 8 is fastened to the upper surface 4d of the flange portion 4a of the frame 4 by the bolt 9, and the compression chamber 10 is configured to complete the assembly of the compression mechanism portion 3.

図2と図3は、圧縮機構部3に電動機部11及び副軸受12を組立てる方法を説明するもので、先ず図2に示すように、前述の組立が完了した圧縮機構部3を反転し、フレーム4の主軸受4bから突出したクランク軸5の主クランク軸部5bに回転子11aを圧入などで接合する。
固定子11bは、フレーム4のフランジ部4aの下面4eとその内径に回転子11aを嵌合した形態でその上面11cを当接し、更に、クランク軸5の副クランク軸部5cと副軸受12を精密に嵌合した後、副軸受12のフランジ部12aと固定子の下面11dの間に、電気的に絶縁距離を取れる高さのスペーサ13を介した状態で、ボルト14を副軸受12のフランジ部12aに設けたボルト穴12bとスペーサ13の内径穴13aと固定子11bのボルト穴11eに貫挿し、フレーム4のねじ穴4fに仮締めする。続いて、副軸受12のフランジ部12aに開口した窓穴12cから、回転子11a外径と固定子11b内径の隙間に適宜厚さのギャップゲージ15を複数枚夫々対向して挿入しエアギャップ11fを調整し、副軸受12とクランク軸5の副クランク軸部5c間に冷凍機油などの潤滑油を塗布し、その膜厚によって芯出しをしながら、図3のようにボルト14を本締めする。
FIGS. 2 and 3 illustrate a method of assembling the motor unit 11 and the auxiliary bearing 12 to the compression mechanism unit 3. First, as shown in FIG. 2, the compression mechanism unit 3 that has been assembled as described above is reversed, A rotor 11a is joined to the main crankshaft portion 5b of the crankshaft 5 protruding from the main bearing 4b of the frame 4 by press fitting or the like.
The stator 11b abuts the lower surface 4e of the flange portion 4a of the frame 4 and the upper surface 11c in a form in which the rotor 11a is fitted to the inner diameter thereof, and further connects the auxiliary crankshaft portion 5c of the crankshaft 5 and the auxiliary bearing 12 to each other. After the fitting, the bolt 14 is inserted into the flange of the sub-bearing 12 with the spacer 13 having a height that can be electrically insulated between the flange portion 12a of the sub-bearing 12 and the lower surface 11d of the stator. The bolt hole 12b provided in the portion 12a, the inner diameter hole 13a of the spacer 13 and the bolt hole 11e of the stator 11b are inserted into the screw hole 4f of the frame 4 and temporarily tightened. Subsequently, a plurality of gap gauges 15 having appropriate thicknesses are respectively inserted into the gaps between the outer diameter of the rotor 11a and the inner diameter of the stator 11b from the window hole 12c opened in the flange portion 12a of the auxiliary bearing 12, and the air gap 11f 3 is applied, lubricating oil such as refrigeration oil is applied between the auxiliary bearing 12 and the auxiliary crankshaft portion 5c of the crankshaft 5, and the bolt 14 is finally tightened as shown in FIG. .

その後、ギャップゲージ15を抜去して、圧縮機構部3と電動機部11及び副軸受12が一体になった圧縮機本体2の組立を終了させる。
この圧縮機本体2は、フレーム4のフランジ部4aの外径寸法を、その上部に配置する固定スクロール8と下部に配置する電動機11と副軸受12の外径より大きい寸法に形成し、そのフランジ部4aの露出幅はフタチャンバ1cの端面1dの厚さより大きくしている。一方、ソコチャンバ1aの段付部1bには、ソコチャンバ1aの軸心に対し直角な平面部1eが形成されていて、図1に示すように、ソコチャンバ1aに挿入された圧縮機本体2の、フレーム4のフランジ部4aの下面4eと前記平面部1eを当接する。
Thereafter, the gap gauge 15 is removed, and the assembly of the compressor main body 2 in which the compression mechanism unit 3, the motor unit 11, and the auxiliary bearing 12 are integrated is finished.
The compressor main body 2 is formed such that the outer diameter of the flange portion 4a of the frame 4 is larger than the outer diameter of the fixed scroll 8 disposed at the upper portion, the electric motor 11 disposed at the lower portion and the auxiliary bearing 12, and the flange. The exposed width of the portion 4a is larger than the thickness of the end surface 1d of the lid chamber 1c. On the other hand, the stepped portion 1b of the saw chamber 1a is formed with a flat portion 1e perpendicular to the axis of the saw chamber 1a. As shown in FIG. 1, the frame of the compressor main body 2 inserted into the saw chamber 1a. The lower surface 4e of the four flange portions 4a and the flat surface portion 1e are brought into contact with each other.

更に、ソコチャンバ1aに、図1のように圧縮機本体2の吸込パイプ17とフタチャンバ1cの吸込ツギパイプ1fを嵌合しながらフタチャンバ1cを挿入し、フタチャンバ1cの端面1dをフランジ部4aの上面4dに当接し、ソコチャンバ1aとフタチャンバ1cの軸心方向に適宜荷重を負荷して、フレーム4のフランジ部4aをソコチャンバ1aの平面部1eとフタチャンバ1cの端面1dで挟合した状態で、ソコチャンバ1aとフタチャンバ1cを円周溶接して本発明の密閉形スクロール圧縮機の組立が完了する。   Further, the lid chamber 1c is inserted into the saw chamber 1a while fitting the suction pipe 17 of the compressor body 2 and the suction hook pipe 1f of the lid chamber 1c as shown in FIG. 1, and the end surface 1d of the lid chamber 1c is connected to the upper surface 4d of the flange portion 4a. The socochamber 1a and the lid chamber 1c are in contact with each other by appropriately applying a load in the axial direction of the socochamber 1a and the lid chamber 1c so that the flange portion 4a of the frame 4 is sandwiched between the flat portion 1e of the socochamber 1a and the end surface 1d of the lid chamber 1c. 1c is circumferentially welded to complete the assembly of the hermetic scroll compressor of the present invention.

図4は、図2と図3で説明したスペーサ機能をその頭部に持たせ、これと一体に頭部の両側に第1ねじ部16aと第2ねじ部16bを形成した両ねじボルト16を使用して、固定子11bと副軸受12を組み立てる一例を示すものである。即ち、固定子11bは回転子11aの外側に嵌合し、適正なエアギャップをもってフレーム4のフランジ部4aに接合している。この固定子11bとフレームは、複数の両ねじボルト16の第1ねじ部16aによって締付けられている。更にクランク軸5の副クランク軸部5cと副軸受12を芯出ししながら、副軸受12のフランジ部12aに設けたボルト穴12bと両ねじボルト16の第2ねじ部16bを貫挿した状態で、ナット16cにより副軸受12を両ねじボルト16に、引いては圧縮機本体に一体に締結している。   FIG. 4 shows the spacer function described in FIG. 2 and FIG. 3 on the head, and the two screw bolts 16 integrally formed with the first screw part 16a and the second screw part 16b on both sides of the head. An example of assembling the stator 11b and the sub-bearing 12 by using it will be described. That is, the stator 11b is fitted to the outside of the rotor 11a and joined to the flange portion 4a of the frame 4 with an appropriate air gap. The stator 11b and the frame are fastened by first screw portions 16a of a plurality of both screw bolts 16. Further, while centering the auxiliary crankshaft portion 5c of the crankshaft 5 and the auxiliary bearing 12, the bolt hole 12b provided in the flange portion 12a of the auxiliary bearing 12 and the second screw portion 16b of both screw bolts 16 are inserted. The sub bearing 12 is pulled to the both screw bolts 16 by a nut 16c, and is then fastened to the compressor body.

図5は、固定子11bと副軸受12の取り付けを夫々長さの違うボルトで締結する構造である。先ず、固定子11bには複数のボルト穴11eが開口されており、ボルト穴11eの対向部分複数箇所を用いて長さの短いボルト14を通し、エアギャップを調整しながらフレーム4に固定子11bを締結する。更に他の対向するボルト穴11eとスペーサ13と副軸受12のボルト穴12bに長さの長いボルト24を挿入し、クランク軸5の副クランク軸部5cと副軸受12を芯出ししながらフレーム4のねじ穴4fに螺挿し、副軸受12のフランジ部12aとスペーサ13とフレームを締結する。   FIG. 5 shows a structure in which the stator 11b and the auxiliary bearing 12 are fastened with bolts having different lengths. First, a plurality of bolt holes 11e are opened in the stator 11b, and short bolts 14 are passed using a plurality of portions of the bolt hole 11e facing each other, and the stator 11b is fixed to the frame 4 while adjusting the air gap. Conclude. Furthermore, a bolt 24 having a long length is inserted into the bolt hole 11e, the spacer 13, and the bolt hole 12b of the auxiliary bearing 12, and the frame 4 while centering the auxiliary crankshaft portion 5c of the crankshaft 5 and the auxiliary bearing 12. Then, the flange portion 12a of the auxiliary bearing 12, the spacer 13, and the frame are fastened.

図4及び図5に示す方法は、固定子11bと副軸受12の組立を別々に実施するもので、前述図2に示した電動機部11のエアギャップの調整と副軸受12の芯出しを同時に行いながら組み立てる方法に較べ、特殊な両ねじボルト16の使用や部品点数の増加があるが、組立精度は得やすい組立方法である。   The method shown in FIGS. 4 and 5 separately assembles the stator 11b and the sub-bearing 12, and simultaneously adjusts the air gap of the motor unit 11 and the centering of the sub-bearing 12 shown in FIG. Compared with the method of assembling while performing, there is use of a special double screw bolt 16 and an increase in the number of parts, but the assembling method is easy to obtain.

図6、図7は、ソコチャンバ1aの他の突起部の成形方法の例を示すもので、図6のソコチャンバは、図1の本発明組立構造で説明したソコチャンバと相違して、単純な底付円筒形状に塑性加工した後、図7に示すようにダイス20とポンチ21をもって、ソコチャンバ1aの鋼板組織に亀裂が発生しない程度で、適宜高さの突起1gを複数箇所その上面が同一高さになるように成形する。
このとき、ダイス20の穴の端面及びポンチ21の端面周囲には微小な丸みを付して、適宜深さにハーフ抜きすることでその成形部分が亀裂を発生しにくくなり、比較的容易に突起1gを成形することが出来る。
6 and 7 show an example of a method for forming another protrusion of the saw chamber 1a. The saw chamber in FIG. 6 is different from the saw chamber described in the assembly structure of the present invention in FIG. After plastic working into a cylindrical shape, as shown in FIG. 7, with a die 20 and a punch 21, a plurality of protrusions 1g having appropriate heights are formed at the same height so that cracks do not occur in the steel sheet structure of the socochamber 1a. Mold to be
At this time, the end face of the hole of the die 20 and the periphery of the end face of the punch 21 are slightly rounded, and the molded part is less likely to crack by appropriately half-cutting, so that the protrusion is relatively easy to project. 1g can be molded.

従来公知スクロール圧縮機では、電動機の固定子40b外径部をケース31a内径に焼嵌めなどにより接合するため、図12に示されるように、固定子40b最外径はフレーム33外径と同等寸法にすることができる。
これに対し、本発明の図1に示されるようにソコチャンバ1aの所定高さ以下の部分を縮径して平面部1eを設け、ここにフレーム4のフランジ部下面4eを当接する場合には、固定子11b最外径はフレーム4外径より小さく、なおかつ図9に示されるようにソコチャンバ平面部1e内径より小さく設定しなければならない。すると、固定子のコアカット11gを形成する部分はさらに小さくなるため、磁路がせばまり、電動機の性能低下を招くおそれがある。
しかし、図8に示されるように、固定子のコアカット11gに対応する位置でソコチャンバを内方に窪ませて突起を形成し、その上面1hにフレーム4のフランジ部下面4eを当接する場合には、固定子最外径をフレーム外径と同等寸法に設定することができ、電動機の性能低下を抑えることができる。
In the conventionally known scroll compressor, since the outer diameter portion of the stator 40b of the motor is joined to the inner diameter of the case 31a by shrink fitting or the like, the outermost diameter of the stator 40b is the same size as the outer diameter of the frame 33 as shown in FIG. Can be.
On the other hand, as shown in FIG. 1 of the present invention, when the flat portion 1e is provided by reducing the diameter of the portion below the predetermined height of the saw chamber 1a and the flange portion lower surface 4e of the frame 4 is brought into contact therewith, The outermost diameter of the stator 11b must be set smaller than the outer diameter of the frame 4 and smaller than the inner diameter of the flat surface portion 1e of the socochamber as shown in FIG. Then, since the part which forms the core cut 11g of a stator becomes still smaller, there exists a possibility that a magnetic path may be stuck and the performance of an electric motor may be reduced.
However, as shown in FIG. 8, when the soko chamber is recessed inward at a position corresponding to the core cut 11g of the stator to form a protrusion, and the flange portion lower surface 4e of the frame 4 is brought into contact with the upper surface 1h. The outermost diameter of the stator can be set to the same dimension as the outer diameter of the frame, and the performance degradation of the electric motor can be suppressed.

図10は、ソコチャンバ1aをリング22と底付の蓋体23に分割し、リング22の内径に蓋体23を嵌合して、図10のように円周溶接しソコチャンバ1aとする。
このとき蓋体23の端面は機械加工などで平面状に仕上げておき、この端面がリング22の軸心に直角になるように組合せて溶接する。
尚、前述のようにリング22と蓋体23を円周溶接しソコチャンバ1aとしたあとは、これを洗浄しスパッタを除去した状態で圧縮機の組立に使用する。
In FIG. 10, the saw chamber 1a is divided into a ring 22 and a lid 23 with a bottom, the lid 23 is fitted to the inner diameter of the ring 22, and circumferential welding is performed as shown in FIG. 10 to obtain the saw chamber 1a.
At this time, the end surface of the lid body 23 is finished into a flat shape by machining or the like, and the end surface is combined and welded so that the end surface is perpendicular to the axis of the ring 22.
As described above, after the ring 22 and the lid 23 are circumferentially welded to form the saw chamber 1a, it is used for assembling the compressor in a state where it is cleaned and spatter is removed.

図11は、図1、図6、図10に示したソコチャンバ1aの、フレーム4のフランジ部4a(2点破線)が嵌合する部分の断面図である。即ち、予め円筒部を複数の凹凸を有する非真円形状に塑性成形し、内法の小さい部分はフランジ部4aの外径より小さく、内法の大きい部分はフランジ部4aの外径寸法より大きく成形し、内径寸法全体の平均値はフランジ部4aの外径寸法より大きくしている。
このような形状にすることにより、ソコチャンバ1aへの圧縮機本体の挿入時にソコチャンバ1aの弾性変形で、フランジ部4a(圧縮機本体2)をしっかり把持できることから、前述したソコチャンバ1aとフタチャンバ1cの上下からの加圧状態で円周溶接することと合わせて、密閉容器1と圧縮機本体2の固定強度をさらに強めることができる。
FIG. 11 is a cross-sectional view of a portion of the saw chamber 1a shown in FIGS. 1, 6, and 10 to which a flange portion 4a (two-dot broken line) of the frame 4 is fitted. In other words, the cylindrical portion is plastically formed into a non-circular shape having a plurality of concaves and convexes in advance. The small inner portion is smaller than the outer diameter of the flange portion 4a, and the larger inner portion is larger than the outer diameter of the flange portion 4a. The average value of the entire inner diameter dimension is made larger than the outer diameter dimension of the flange portion 4a.
By adopting such a shape, the flange portion 4a (compressor body 2) can be firmly held by elastic deformation of the soco chamber 1a when the compressor body is inserted into the soco chamber 1a. In addition to the circumferential welding in the pressurized state, the fixing strength of the sealed container 1 and the compressor body 2 can be further increased.

以上述べたように、本発明による密閉形スクロール圧縮機では、従来公知圧縮機のケースとフレームの点溶接、ケースと副軸受支えの点溶接、ケースとフタ、ソコチャンバの円周溶接など、多くの溶接箇所をソコチャンバとフタチャンバの1箇所としたことから、溶接によって発生するスパッタ量を大幅に低減し、密閉容器内への混入量も必然的に減少することが出来る。
特に、従来圧縮機で間隙が大きく、最もスパッタの密閉容器内への落下侵入が多かった、ケースと圧縮機構部(フレーム)の点付け溶接を省略したことから、本発明圧縮機では、各摺動部へのスパッタの侵入によるロック事故を激減する事が出来、運転信頼性の格段の向上が望める。
As described above, in the hermetic scroll compressor according to the present invention, there are many cases such as spot welding of a case and a frame of a conventionally known compressor, spot welding of a case and a secondary bearing support, circumferential welding of a case and a lid, and a socochamber. Since the welding location is one location of the saw chamber and the lid chamber, the amount of spatter generated by welding can be greatly reduced, and the amount of contamination into the sealed container can be reduced inevitably.
In particular, in the compressor of the present invention, since the gap is large in the conventional compressor, and the spattering of the case and the compression mechanism (frame) was omitted, which caused the most spattering and intrusion of spatter into the sealed container, Locking accidents due to spattering into the moving parts can be drastically reduced, and the driving reliability can be greatly improved.

又、副軸受を固定子の端面へスペーサ或いはスペーサ機能部分を介して、一体の圧縮機本体として組み立てることが出来ることから、クランク軸の副軸との芯出し精度を向上することができ、副軸受は、塑性加工で安価に成形したフランジ部と軸受を圧入した一体構造で安価に入手できるとともに、複数個のスペーサ及びスペーサ機能部分の高さ寸法を微妙に組み合わせることで、副軸受の倒れを調整することが可能であり、クランク軸の副軸と副軸受の片当りを防止することが出来る。   Further, since the auxiliary bearing can be assembled to the end face of the stator as a unitary compressor body via the spacer or the spacer function portion, the centering accuracy of the crankshaft with the auxiliary shaft can be improved. The bearings can be obtained at a low cost with an integrated structure in which the flange part and the bearings are press-fitted at low cost by plastic working, and the secondary bearings can be tilted by subtly combining the height dimensions of multiple spacers and spacer function parts. It is possible to adjust, and it is possible to prevent the countershaft of the crankshaft and the subbearing from contacting each other.

本発明に係る密閉形スクロール圧縮機の一例を示す縦断面図。The longitudinal cross-sectional view which shows an example of the hermetic scroll compressor which concerns on this invention. 本発明に係る圧縮機の電動機部、副軸受部の組立方法の一例を示す縦断面図。The longitudinal cross-sectional view which shows an example of the assembly method of the electric motor part of a compressor which concerns on this invention, and a subbearing part. 本発明に係る圧縮機の電動機部、副軸受部の組立方法の一例を示す縦断面図。The longitudinal cross-sectional view which shows an example of the assembly method of the electric motor part of a compressor which concerns on this invention, and a subbearing part. 本発明に係る圧縮機の電動機部、副軸受部の組立方法の一例を示す縦断面図。The longitudinal cross-sectional view which shows an example of the assembly method of the electric motor part of a compressor which concerns on this invention, and a subbearing part. 本発明に係る圧縮機の電動機部、副軸受部の組立方法の一例を示す縦断面図。The longitudinal cross-sectional view which shows an example of the assembly method of the electric motor part of a compressor which concerns on this invention, and a subbearing part. 本発明に係るソコチャンバの製作方法の一例を示す縦断面図。The longitudinal cross-sectional view which shows an example of the manufacturing method of the saw chamber concerning this invention. 図6ソコチャンバの突起の成形方法の一例を示す断面図。6 is a cross-sectional view showing an example of a method for forming the protrusion of the saw chamber. 本発明に係るソコチャンバと固定子の一例を示す断面図。Sectional drawing which shows an example of the saw chamber and stator which concern on this invention. 本発明に係るソコチャンバと固定子の一例を示す断面図。Sectional drawing which shows an example of the saw chamber and stator which concern on this invention. 本発明に係るソコチャンバの製作方法の一例を示す縦断面図。The longitudinal cross-sectional view which shows an example of the manufacturing method of the saw chamber concerning this invention. 本発明に係るソコチャンバの圧縮機本体係止部の形状の一例を示す平断面図。The cross-sectional view which shows an example of the shape of the compressor main body latching | locking part of the Soko chamber which concerns on this invention. 従来公知密閉形スクロール圧縮機の一例を示す縦断面図。The longitudinal cross-sectional view which shows an example of a conventionally well-known sealed scroll compressor. 従来公知密閉形スクロール圧縮機の副軸受支えの固定構造の一例を示す縦断面図。The longitudinal cross-sectional view which shows an example of the fixing structure of the subbearing support of a conventionally well-known sealed scroll compressor.

符号の説明Explanation of symbols

1 密閉容器
1a ソコチャンバ
1b 段付部
1c フタチャンバ
1d フタチャンバ端面
1e ソコチャンバの平面部
1f 吸込ツギパイプ
1g 突起
1h 突起の上面部
2 圧縮機本体
3 圧縮機構部
4 フレーム
4a フランジ部
4b 主軸受
4c 段差部
4d フランジ部上面
4e フランジ部下面
4f ねじ穴
5 クランク軸
5a 偏心部
5b 主クランク軸部
5c 副クランク軸部
6 旋回スクロール
6a ボス部内径
6b キー溝
6c 端板
6d ラップ
7 オルダムリング
7a キー
8 固定スクロール
8a 端板
8b ラップ
9 ボルト
10 圧縮室
11 電動機部
11a 回転子
11b 固定子
11c 固定子上面
11d 固定子下面
11e ボルト穴
11f エアギャップ
11g コアカット
12 副軸受
12a フランジ部
12b ボルト穴
12c 窓穴
13 スペーサ
13a 内径穴
14 ボルト
15 ギャップゲージ
16 両ねじボルト
16a 第1ねじ部
16b 第2ねじ部
16c ナット
17 吸込パイプ
18 潤滑油
19 円周溶接部
20 ダイス
21 ポンチ
22 リング
23 蓋体
24 ボルト
DESCRIPTION OF SYMBOLS 1 Airtight container 1a Soko chamber 1b Stepped part 1c Cover chamber 1d End surface of lid chamber 1e Plane part of Soko chamber 1f Suction pipe 1g Projection 1h Upper surface part of projection 2 Compressor body 3 Compression mechanism part 4 Frame 4a Flange part 4b Stepped part 4d Flange part 4d Part top surface 4e Flange bottom surface 4f Screw hole 5 Crankshaft 5a Eccentric part 5b Main crankshaft part 5c Sub crankshaft part 6 Orbiting scroll 6a Boss part inner diameter 6b Key groove 6c End plate 6d Lap 7 Oldham ring 7a Key 8 Fixed scroll 8a End Plate 8b Wrap 9 Bolt 10 Compression chamber 11 Motor part 11a Rotor 11b Stator 11c Stator top face 11d Stator bottom face 11e Bolt hole 11f Air gap 11g Core cut 12 Sub bearing 12a Flange part 12b Bolt hole 12c Inner diameter 13 Spacer 13a Hole 14 Bolt 15 Gap gauge 16 Double screw bolt 16a First screw portion 16b Second screw portion 16c Nut 17 Suction pipe 18 Lubricating oil 19 Circumferential weld 20 Die 21 Punch 22 Ring 23 Lid 24 Lid

Claims (11)

フタチャンバを有する密閉容器、
この密閉容器の内部に設けられ、固定スクロールと旋回スクロールとこれらを支持するフレームを有する圧縮機構部、および
前記密閉容器内に設けられ、中央部の回転子とその周囲に配置された固定子を有する電動機部
を備えた密閉形スクロール圧縮機において、
前記圧縮機構部と電動機部を結合手段により一体化して、圧縮機本体ユニットを形成し、この圧縮機本体ユニットの底部または周縁に下向きの被載置面を形成するとともに、
前記密閉容器の内周面に、前記圧縮機本体ユニットの被載置面が載る載置面を形成し、
前記被載置面が載置面に載った状態で密閉容器内に収納された前記圧縮機本体ユニットを前記フタチャンバの端面で押圧するようになっている
ことを特徴とする密閉形スクロール圧縮機。
A sealed container having a lid chamber;
A compression mechanism having a fixed scroll, a revolving scroll, and a frame for supporting them, and a rotor disposed in the sealed container and disposed around the rotor In a hermetic scroll compressor having an electric motor part,
The compressor mechanism unit and the motor unit are integrated by a coupling means to form a compressor body unit, and a downward mounting surface is formed on the bottom or periphery of the compressor body unit,
On the inner peripheral surface of the sealed container, a mounting surface on which the mounting surface of the compressor body unit is mounted is formed,
A hermetic scroll compressor, wherein the compressor main body unit housed in a hermetic container is pressed by an end surface of the lid chamber in a state where the placement surface is placed on the placement surface.
フレームの外径を電動機部の外径より大きく設定することにより前記被載置面を形成した請求項1の密閉形スクロール圧縮機。   The hermetic scroll compressor according to claim 1, wherein the mounting surface is formed by setting an outer diameter of the frame to be larger than an outer diameter of the electric motor section. 前記電動機部で駆動され、軸端で前記旋回スクロールを公転させる軸の一方が前記フレームに設けた主軸受で軸支され、他方が副軸受で軸支されており、前記固定子の端面と副軸受のフランジ間にスペーサを挟合して、固定子のボルト穴とスペーサの内径穴及び副軸受のフランジ部のボルト穴にボルトを通し、電動機の固定子とスペーサ及び副軸受を、同時にフレームのねじ穴に締結して、圧縮機本体ユニットを構成した請求項1または2のスクロール圧縮機。   One of the shafts driven by the motor unit and revolving the orbiting scroll at the shaft end is pivotally supported by a main bearing provided on the frame, and the other is pivotally supported by a sub-bearing. A spacer is sandwiched between the bearing flanges, and bolts are passed through the bolt holes of the stator, the inner diameter holes of the spacers, and the bolt holes of the flanges of the auxiliary bearings. The scroll compressor according to claim 1 or 2, wherein the compressor body unit is configured by being fastened to the screw hole. 前記スペーサが前記副軸受と一体に形成されている請求項3の密閉形スクロール圧縮機。   The hermetic scroll compressor according to claim 3, wherein the spacer is formed integrally with the auxiliary bearing. 前記ボルトには、その頭部近傍に、副軸受組立後、副軸受のフランジ部と電動機の固定子のエンドコイル間で、電気的絶縁距離を取れる高さ寸法で、拡径スペーサ機能部が設けられ、これにより前記スペーサが構成され、しかも、前記ボルトには、前記拡径スペーサ機能部について両端に第1および第2ねじ部がそれぞれ形成されており、第1ねじ部によって電動機部のフレームへの固定を行い、第2ねじ部によって副軸受の固定を行うようにした請求項3の密閉形スクロール圧縮機。   In the vicinity of the head of the bolt, an enlarged spacer function part is provided in the vicinity of the head, with a height that allows an electrical insulation distance between the flange part of the auxiliary bearing and the end coil of the stator of the motor. Thus, the spacer is constituted, and the bolt is formed with first and second screw portions at both ends of the diameter-enlarged spacer function portion, and the first screw portion leads to the frame of the electric motor portion. The hermetic scroll compressor according to claim 3, wherein the secondary bearing is fixed by the second screw portion. 複数のボルトにより、固定子をフレームに回転子とのエアギャップを調整しながら結合した後、フレーム、固定子および副軸受の三者を他の複数のボルトにより結合した請求項3〜5のいずれかの密閉形スクロール圧縮機。   The stator according to any one of claims 3 to 5, wherein the stator, the stator, and the auxiliary bearing are joined by a plurality of other bolts after the stator is joined to the frame by adjusting the air gap with the rotor by a plurality of bolts. A hermetic scroll compressor. 前記密閉容器の周壁部が円筒状にされており、その所定高さ以下の部分を縮径部とし、これにより前記載置面を形成した請求項1〜6のいずれかの密閉形スクロール圧縮機。   The hermetic scroll compressor according to any one of claims 1 to 6, wherein a peripheral wall portion of the hermetic container is formed in a cylindrical shape, and a portion having a predetermined height or less is a reduced diameter portion, thereby forming the placement surface. . 前記密閉容器の周壁部が円筒状にされており、その所定高さ位置の複数箇所を内方に窪ませ、これにより前記載置面を形成した請求項1〜6のいずれかの密閉形スクロール圧縮機。   The hermetic scroll according to any one of claims 1 to 6, wherein a peripheral wall portion of the hermetic container is formed in a cylindrical shape, and a plurality of predetermined height positions are recessed inward to thereby form the placement surface. Compressor. 前記電動機の固定子の外周面の一部には凹み部となるコアカットが形成され、
このコアカットに対応する位置でソコチャンバの複数箇所を内方に窪ませ、
これにより前記載置面を形成した請求項1〜6のいずれかの密閉形スクロール圧縮機。
A core cut that becomes a recess is formed in a part of the outer peripheral surface of the stator of the electric motor,
At the position corresponding to this core cut, several locations of the Soko chamber are recessed inward,
The hermetic scroll compressor according to any one of claims 1 to 6, wherein the mounting surface is formed as a result.
前記密閉容器が、フタチャンバとソコチャンバで構成され、このソコチャンバが、円筒状の上部部材と、上部部材の外径に対応した内径を有する底付円筒状の下部部材で構成され、上部部材の下部が下部部材に所定長さ挿入された状態で溶接により予め接合されている請求項1〜9のいずれかの密閉形スクロール圧縮機。   The sealed container includes a lid chamber and a saw chamber. The saw chamber includes a cylindrical upper member and a bottomed cylindrical lower member having an inner diameter corresponding to the outer diameter of the upper member. The hermetic scroll compressor according to any one of claims 1 to 9, wherein the hermetic scroll compressor is joined in advance by welding in a state of being inserted into the lower member by a predetermined length. 前記密閉容器が、フタチャンバとソコチャンバで構成され、ソコチャンバのフレームのフランジ部が挿入する部分の形状を楕円形状或いは複数の凹凸を有する非真円形状に成形し、その最小内法寸法はフレームのフランジ部外径より小さく、その最大内法寸法はフレームのフランジ部外径寸法より大きく形成し、しかもそれらの内法寸法の平均値はフレームのフランジ部の外径寸法より大きく形成されている請求項1〜10のいずれかの密閉形スクロール圧縮機。   The closed container is composed of a lid chamber and a saw chamber, and the shape of the portion into which the flange portion of the frame of the saw chamber is inserted is formed into an elliptical shape or a non-circular shape having a plurality of irregularities, and the minimum inner dimension is the flange of the frame The inner diameter is smaller than the outer diameter of the frame, the maximum inner dimension is larger than the outer diameter of the flange of the frame, and the average value of the inner dimensions is larger than the outer diameter of the flange of the frame. 1 to 10 hermetic scroll compressor.
JP2004251646A 2004-02-02 2004-08-31 Sealed type scroll compressor Withdrawn JP2005248938A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014214799A (en) * 2013-04-25 2014-11-17 本田技研工業株式会社 Planetary gear mechanism and method for assembling the same
CN113906217A (en) * 2019-06-12 2022-01-07 三菱电机株式会社 Scroll compressor and method for manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014214799A (en) * 2013-04-25 2014-11-17 本田技研工業株式会社 Planetary gear mechanism and method for assembling the same
CN113906217A (en) * 2019-06-12 2022-01-07 三菱电机株式会社 Scroll compressor and method for manufacturing the same

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