JPH04164U

JPH04164U -

Info

Publication number: JPH04164U
Application number: JP3958490U
Authority: JP
Priority date: 1990-04-13
Filing date: 1990-04-13
Publication date: 1992-01-06

Description

[Brief explanation of the drawing]

第１図は本考案の実施例で、第２図に示す−
断面に沿う側断面図、第２図は正断面図、第３
図は第２図に示す−断面に沿う側断面図、第
４図、第５図は他の実施例を示す要部側断面図、
第６図は他の実施例を示す正断面図、第７図は他
の実施例の要部拡大正断面図である。１……固定子、１１……固定子鉄心、１３……
電機子巻線、２……回転子、２１……回転軸、２
４……非磁性円筒、５……永久磁石、６……継鉄
、６１……磁極面、６２……端部継鉄、６３……
中央部継鉄、６４……固定溝、６５……磁極片。 Figure 1 shows an embodiment of the present invention, and Figure 2 shows -
Side sectional view along the cross section, Figure 2 is a front sectional view, Figure 3 is a front sectional view.
The figures are shown in FIG. 2 - a side sectional view along the cross section, FIGS. 4 and 5 are side sectional views of main parts showing other embodiments,
FIG. 6 is a front sectional view showing another embodiment, and FIG. 7 is an enlarged front sectional view of main parts of the other embodiment. 1... Stator, 11... Stator core, 13...
Armature winding, 2... Rotor, 21... Rotating shaft, 2
4...Nonmagnetic cylinder, 5...Permanent magnet, 6...Yoke, 61...Magnetic pole surface, 62...End yoke, 63...
Central yoke, 64...fixing groove, 65...magnetic pole piece.

Claims

[Scope of claims for utility model registration] 1. A stator in which an armature winding is provided on a stator core,
An even number of permanent magnets tangentially magnetized are provided radially around the outer circumference of the rotating shaft via a non-magnetic cylinder, and a yoke is provided between the permanent magnets so that they face each other with an air gap inside the stator core. A permanent magnet type rotating electrical machine comprising a rotor having a fixed rotor, wherein both ends of the permanent magnet and both ends of the yoke protrude in the axial direction from an end surface of the stator core. rotor. 2. The permanent magnet type rotating electrical machine according to claim 1, wherein the axial length of the protrusion of the permanent magnet and the yoke is approximately the same as the axial length of the coil end of the armature winding. 3. The permanent magnet type rotating electric machine according to claim 1 or 2, wherein the protrusion of the yoke is made of a solid core. 4. A portion of the yoke having the same length as the axial length of the stator core is made of a solid core, and a half-moon-shaped magnetic pole piece made of laminated electromagnetic steel sheets is fixed to the outer circumferential side of the yoke, The permanent magnet rotating electric machine according to any one of claims 1 to 3, wherein the outer periphery of the rotor is formed into a cylindrical shape. 5. The permanent magnet rotating electric machine according to claim 4, wherein the radius of curvature of the outer periphery of the magnetic pole piece is smaller than the radius of the rotor. 6. The permanent magnet type rotating electric machine according to claim 4 or 5, wherein a fixing groove for fixing the magnetic pole piece is provided on the outer peripheral side of the yoke.