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Rotary electric machine

一种旋转电机、转子的技术，应用在搭接线的构造领域，能够解决电动机损耗增加、结构部件寿命降低等问题，达到提高冷却性、抑制温度升高、高效热交换的效果

Active Publication Date: 2015-09-30
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since an increase in the temperature inside the motor leads to an increase in motor loss and a reduction in the life of structural parts, etc., it is desired to develop a structure with excellent cooling performance

Method used

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  • Rotary electric machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] figure 1 is a sectional view showing the rotating electric machine according to Embodiment 1 of the present invention, figure 2 It is a front view showing the cooling fan attached to the rotor of the rotating electric machine according to Embodiment 1 of the present invention, image 3 It is a perspective view showing the stator of the rotating electric machine according to Embodiment 1 of the present invention, Figure 4 It is an end view showing the stator of the rotating electric machine according to Embodiment 1 of the present invention, Figure 5 It is a perspective view showing a core block constituting a stator core in a stator of the rotating electrical machine according to Embodiment 1 of the present invention, Figure 6 is a perspective view showing a winding body constituting the stator winding in the stator of the rotating electric machine according to Embodiment 1 of the present invention, Figure 7 It is a front view showing the winding body constituti...

Embodiment approach 2

[0089] Figure 20 It is an end view showing a rotor in the rotating electric machine according to Embodiment 2 of the present invention.

[0090] exist Figure 20 Among them, the rotor core 42A is formed by laminating and integrally forming electromagnetic steel plates, and is formed into a substantially cylindrical body having a shaft insertion hole 45 formed at the axial center position. Eight pairs of magnet insertion holes 46 are formed at equiangular intervals in the circumferential direction, have the same hole shape of a rectangular cross section, and penetrate the outer peripheral side of rotor core 42A in the axial direction. The pair of magnet insertion holes 46 is arranged in a V-shape opening radially outward from the axis of the rotor core 42A. Further, eight rotor slots 47 are recessed at equiangular intervals on the outer peripheral surface of the rotor core 42A, and the eight rotor slots 47 respectively extend from one axial end of the rotor core 42A to the o...

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PUM

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Abstract

Conductor terminals of a plurality of conductor wires that constitute a stator winding each extend outward at a first axial end of a stator core, and among the conductor terminals, conductor terminals through which same-phase electric power flows are respectively connected by crossover wires, and circumferential regions that are occupied by the crossover wires are separated from each other in a circumferential direction.

Description

technical field [0001] The present invention relates to a rotating electrical machine such as a motor or a generator, and more particularly to a configuration of a lap wire for connecting conductor ends of wires of a stator winding to each other. Background technique [0002] In electric motors used in EVs (electric vehicles), HEVs (hybrid electric vehicles), etc., since a large current flows through the stator windings, the temperature inside the motor tends to rise. Since an increase in the temperature inside the motor leads to an increase in motor loss and a reduction in the life of structural components, etc., it is desired to develop a structure with excellent cooling performance. [0003] In view of the above situation, in the conventional rotating electric machine, the overlap portion (corresponding to the overlap wire of the present application) connecting the ends of the windings of each phase is configured such that the area occupied by the overlap portion in the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/50
CPCH02K9/06H02K9/19H02K3/28H02K3/505
Inventor 茅野慎介井上正哉中村成志
Owner MITSUBISHI ELECTRIC CORP
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