Rotary electric machine and method for manufacturing rotary electric machine
A technology for rotating electrical machines and manufacturing methods, which is applied in the direction of electrical components, electromechanical devices, and electric components, and can solve problems such as rising prices of rotating electrical machines, decreasing the space factor of the stator core, and degrading the performance of the motor, so as to improve productivity and suppress Poor shape accuracy, effect of suppressing penetration
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Embodiment approach 1
[0062] Hereinafter, the rotating electric machine according to Embodiment 1 will be described with reference to the drawings.
[0063] figure 1 It is a sectional view showing an example of the rotating electric machine 100 according to the first embodiment. also, figure 2 is a perspective view showing the appearance of the rotating electric machine according to Embodiment 1, image 3 is the above figure 2 Perspective view of the stator in . The above-mentioned rotating electric machine 100 includes: a rotor 1 (rotor 1 such as figure 1 shown fixed on the shaft 3); and the stator 2 arranged opposite to the rotor 1 (refer to figure 1 , figure 2 ). Here, the above-mentioned stator 2 includes a stator core 4 and a coil 5 among its constituent elements (refer to image 3 ).
[0064] In addition, if Figure 4 As shown, the above-mentioned stator 2 is that the coil 5 is wound and installed on the stator core 4 (refer to Figure 5 ) constituted (see figure 2), wherein, ...
Embodiment approach 2
[0076] Next, a rotating electrical machine according to Embodiment 2 will be described with reference to the drawings. Here, use Figure 9 The influence on the rotating electrical machine when adjacent split cores are fixed by welding will now be described. The split cores are fixed to each other by welding at adjacent points on the outermost circumference of the yoke. The welding portion 12, which is a portion where the above-mentioned welding is completed, extends in the axial direction, or is formed in a spot shape at an arbitrary position in the axial direction.
[0077] In the rotating electrical machine of Embodiment 2, when the adjacent split cores are fixed to each other by welding at the outermost peripheral position of the yoke, since there is no sticking at the welding point when the split core of Embodiment 1 is used, Adhesive, therefore, can suppress the gas generated by the adhesive during welding. Therefore, there is an effect that it is easy to manage weldin...
Embodiment approach 3
[0080] Next, a rotating electrical machine according to Embodiment 3 will be described with reference to the drawings. Figure 10 It is a plan view showing an example of a split core of the rotating electric machine according to the third embodiment. At the circumferential central portion of the yoke 6 (including the central axis AA of the shape of the electromagnetic steel sheet 9, the side close to the central axis of the shape. The same applies hereinafter), the bonding area S of the adhesive is larger than that including both ends of the yoke in the circumferential direction. 8, the inner circumferential peripheral portion (the side away from the shape central axis; the same applies hereinafter) protrudes toward the outer diameter side.
[0081] In the rotating electric machine according to Embodiment 3, since the bonding strength of the laminated steel sheets in the yoke portion during lamination can be improved, deformation during assembly can be suppressed and productiv...
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