JPS63137573U

JPS63137573U -

Info

Publication number: JPS63137573U
Application number: JP2543287U
Authority: JP
Priority date: 1987-02-23
Filing date: 1987-02-23
Publication date: 1988-09-09

Description

[Brief explanation of the drawing]

第１図ないし第２図はこの考案の一実施例であ
る永久磁石形同期機の回転子を示す図であつて、
第１図はその正面図、第２図は第１図の―′
線に沿う矢視断面図、第３図ないし第６図は同実
施例たる永久磁石形同期機の回転子の製造途中の
状態を示す図であつて、第３図は金属板単独の状
態を示す斜視図、第４図は金属板が接着積層され
た状態を示す斜視図、第５図は金属板が溶接積層
された状態を示す斜視図、第６図は同側面図、第
７図は前記実施例たる回転子が適用される永久磁
石形同期発電機を示す正断面図、第８図は従来の
永久磁石形同期機の回転子を示す断面図、第９図
は回転子のロータスリーブに渦電流が発生する作
用を説明するための図、第１０図はロータスリー
ブを通過する磁束量と時間との関係を示す図であ
る。４…回転子、９…磁石、１０…ロータスリーブ
、１１…非磁性金属板。 Figures 1 and 2 are diagrams showing the rotor of a permanent magnet type synchronous machine which is an embodiment of this invention.
Figure 1 is its front view, Figure 2 is the same as Figure 1.
3 to 6 are cross-sectional views taken along the line, and show the state of the rotor of the permanent magnet type synchronous machine in the middle of manufacturing according to the same embodiment, and FIG. 3 shows the state of the metal plate alone. FIG. 4 is a perspective view showing a state in which metal plates are bonded and laminated, FIG. 5 is a perspective view showing a state in which metal plates are welded and laminated, FIG. 6 is a side view of the same, and FIG. A front sectional view showing a permanent magnet type synchronous generator to which the rotor of the above embodiment is applied, Fig. 8 is a sectional view showing a rotor of a conventional permanent magnet type synchronous machine, and Fig. 9 shows a rotor sleeve of the rotor. FIG. 10 is a diagram illustrating the relationship between the amount of magnetic flux passing through the rotor sleeve and time. 4...Rotor, 9...Magnet, 10...Rotor sleeve, 11...Nonmagnetic metal plate.

Claims

[Claims for Utility Model Registration] In a rotor of a permanent magnet type synchronous machine, in which magnets are arranged in an annular manner around the outer periphery of a rotating shaft rotatably supported within the synchronous machine, the magnets include a cylindrical rotor. A sleeve is fitted onto the outside, and this rotor sleeve is made up of a plurality of disc-shaped non-magnetic metal plates, and is also made of these non-magnetic metal plates, and the adjacent surfaces of these non-magnetic metal plates are A rotor for a permanent magnet type synchronous machine, characterized in that an insulating film is formed on at least one surface of the rotor.