JPH03106850U

JPH03106850U -

Info

Publication number: JPH03106850U
Application number: JP1460790U
Authority: JP
Priority date: 1989-12-05
Filing date: 1990-02-15
Publication date: 1991-11-05
Anticipated expiration: 2005-02-15
Also published as: JP2530940Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示す側断面図、第２
図は正断面図、第３図は他の実施例を示す要部断
面図、第４図ａは他の実施例を示す第４図ｂに示
すＡ−Ａ断面に沿う正断面図、第４図ｂは第４図
ａに示すＢ−Ｂ断面に沿う側断面図、第５図は他
の実施例を示す正断面図、第６図は第５図に示す
−断面に沿う側断面図、第７図は他の実施例
を示す正断面図、第８図は第７図に示す−断
面に沿う側断面図である。１……固定子、２……回転子、２１……回転軸
、２４……非磁性円筒、３……主永久磁石、３１
……磁極面、４……継鉄、４１……接線方向側面
、４２……軸方向側面、４３，４３′……磁極面
、５……補助永久磁石、５１……磁極面、６……
ロータヨーク、６１……凹部、６２……固定溝、
８……補助永久磁石、９……リング磁石。 Fig. 1 is a side sectional view showing an embodiment of the present invention;
The figure is a front sectional view, FIG. 3 is a sectional view of main parts showing another embodiment, FIG. FIG. 5 is a front sectional view showing another embodiment; FIG. 6 is a side sectional view along the cross section shown in FIG. 5; FIG. 7 is a front sectional view showing another embodiment, and FIG. 8 is a side sectional view taken along the - section shown in FIG. 7. DESCRIPTION OF SYMBOLS 1... Stator, 2... Rotor, 21... Rotating shaft, 24... Non-magnetic cylinder, 3... Main permanent magnet, 31
...Magnetic pole surface, 4...Yoke, 41...Tangential side surface, 42...Axial direction side surface, 43, 43'...Magnetic pole surface, 5...Auxiliary permanent magnet, 51...Magnetic pole surface, 6...
Rotor yoke, 61... recess, 62... fixing groove,
8...Auxiliary permanent magnet, 9...Ring magnet.

Claims

[Claims for Utility Model Registration] 1 Main permanent magnets having a magnetic flux in the tangential direction of the same number as the number of magnetic poles of the rotating electric machine are provided radially on the outer periphery of the rotating shaft via a non-magnetic cylinder, and the main permanent magnets are connected between each other. In a permanent magnet rotor for a rotating electric machine, the permanent magnet rotor is provided with iron, and the surfaces of both main permanent magnets that sandwich the yoke and are in contact with the yoke have the same polarity, and magnetic poles that energize the magnetic flux of the yoke. A permanent magnet rotor for a rotating electrical machine, characterized in that the same number of auxiliary permanent magnets are added. 2. The auxiliary permanent magnet is arranged on both sides of the yoke in the axial direction so that one magnetic pole surface has the same polarity as the magnetism of the main permanent magnet, and the rotor yoke is attached to the other magnetic pole surface of the auxiliary permanent magnet. Claim 1 fixed concentrically to
Permanent magnet rotor of the mentioned rotating electric machine. 3. The permanent magnet rotor for a rotating electrical machine according to claim 2, wherein the rotor yoke is formed with a recess having a shape substantially the same as the magnetic pole surface of the auxiliary permanent magnet, and the auxiliary permanent magnet is fitted into the recess. 4. A fixing groove into which the main permanent magnet can be inserted from the side is provided in the rotor yoke at a position between the adjacent auxiliary permanent magnets, and the main permanent magnet is protruded between the auxiliary permanent magnets and inserted into the fixing groove. A permanent magnet type rotor for a rotating electric machine according to claim 2 or 3, wherein the rotor is inserted into a permanent magnet type rotor for a rotating electric machine. 5. Claim 1, wherein the auxiliary permanent magnet is provided in contact with the rotating shaft side of the yoke, and is magnetized in the radial direction so that the surface in contact with the yoke has the same polarity as the magnetic pole surface of the main permanent magnet. Permanent magnet rotor of the mentioned rotating electric machine. 6 the auxiliary permanent magnet is inserted into an insertion hole provided at a position in contact with the yoke of the non-magnetic cylinder;
A magnet having substantially the same thickness as the non-magnetic cylinder, and magnetized in the radial direction so that a surface in contact with the yoke has the same polarity as a magnetic pole surface of the main permanent magnet in contact with the yoke. 5. A permanent magnet rotor for a rotating electric machine according to 5. 7. The auxiliary permanent magnet fixes a ring magnet having radial anisotropy to the outer periphery of the rotating shaft,
6. The permanent magnet rotor for a rotating electric machine according to claim 5, wherein the ring magnet is magnetized in a radial direction so that a surface in contact with the yoke has the same polarity as a magnetic pole surface of the main permanent magnet.