JPS59152961U

JPS59152961U - Hermetic electric compressor

Info

Publication number: JPS59152961U
Application number: JP4651283U
Authority: JP
Inventors: 善之山本; 冨野　保治
Original assignee: アイチ−エマソン電機株式会社
Priority date: 1983-03-29
Filing date: 1983-03-29
Publication date: 1984-10-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図及び第２図は従来の回転子の実施例を示し、第１
図は平面断面図、第２図は正面断面図、第３図及び第４
図は密閉型電動圧縮機の概略を示し、第３図は正面断面
図、第４図は電動機固着部の平面断面図、第５図乃至第
１２図は本考案によ゛る密閉型電動圧縮機に使用される
回転子の実施例を示し、第５図、第１１図及び第１２図
は回転子外観を示す斜視図、第６図は平面断面図、第７
図及び第９図は第６図のＰ−０−Ｑ線によって回転子を
切断して示す正面断面図、第８図は、回転子ヨーク薄鉄
板の平面図、第１０図は回転子ヨークの構成を説明する
斜視図である。１、ｌａ、ｌｂ・・・回転子ヨーク、２・・・永久磁石
、４、　４ａ、　　４ｂ、　　４Ｃ・・・回転子、５・
・・クランクシャフト、６、・・・密閉ケース、７・・
・固定子、１０・・・圧縮機構、１１・・・吐出管、１
２・・・軸受部、１３・・・外部接続端子１．１８・・
・回転子ヨーク薄鉄板、１９・・・穴部、２０・・・シ
ャフト穴、２１，２１ｂ、２１ｃ・・・環状構造部、２
２・・・棒状構造部、２３・・・空洞部、２６．２７・
・・バランスウェイト。Figures 1 and 2 show examples of conventional rotors;
The figure is a plan sectional view, Figure 2 is a front sectional view, Figures 3 and 4 are
The figures schematically show a hermetic electric compressor, Fig. 3 is a front sectional view, Fig. 4 is a plane sectional view of the fixed part of the electric motor, and Figs. 5 to 12 show the hermetic electric compressor according to the present invention. 5, 11 and 12 are perspective views showing the external appearance of the rotor, FIG. 6 is a plan sectional view, and FIG.
9 and 9 are front sectional views showing the rotor taken along line P-0-Q in FIG. 6, FIG. 8 is a plan view of the rotor yoke thin iron plate, and FIG. 10 is a plan view of the rotor yoke. FIG. 2 is a perspective view illustrating the configuration. 1, la, lb... rotor yoke, 2... permanent magnet, 4, 4a, 4b, 4C... rotor, 5...
... Crankshaft, 6, ... Sealed case, 7...
・Stator, 10... Compression mechanism, 11... Discharge pipe, 1
2...Bearing part, 13...External connection terminal 1.18...
・Rotor yoke thin iron plate, 19... Hole portion, 20... Shaft hole, 21, 21b, 21c... Annular structure portion, 2
2... Rod-shaped structure part, 23... Cavity part, 26.27.
・Balance weight.

Claims

[Scope of utility model registration request]

(1) In a hermetic electric compressor constructed by fixing a motor rotor, which has permanent magnets arranged on the outer periphery of a yoke, to a crankshaft, and fixing a motor stator facing the rotor to a sealed case. A rotor yoke is constructed by laminating a plurality of thin iron plates with holes drilled in a plurality of places so that the holes interlock in the axial direction, and predetermined places among the plurality of holes are formed by casting. A rod-like structure is formed by embedding metal to penetrate through the rotor in the axial direction, and a cavity extending in the axial direction is formed at another predetermined location, and an annular structure made of cast metal is formed at both ends of the rotor in the axial direction. A hermetic electric compressor characterized by being integrally formed with a rod-shaped structure.

(2) In a structure that has a compression mechanism on one side and a discharge pipe on the other side in a sealed case that holds the electric motor between them, the rotor yoke made of laminated thin iron plates has twist in the rotor circumferential direction. Furthermore, the cavity extending in the axial direction inside the yoke has a predetermined twist angle with respect to the axis and is open at both ends in the axial direction, and as the rotor rotates, the refrigerant gas in the sealed case 2. The hermetic electric compressor according to claim 1, wherein a part of the compressor is configured to pass from the compression mechanism side to the discharge pipe side via the cavity.

(3) The hermetic electric compressor according to claim 1 or 2, wherein the balance weight or the balance weight attachment mechanism is integrally formed with the annular structure.