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rotating electrical machine

A technology of rotating motors and rotating shafts, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., to achieve good and effective cooling effects

Active Publication Date: 2017-01-18
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is still room for improvement from the viewpoint of cooling the inside of the rotating electric machine.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0050] 1. Description of the overall structure

[0051] [1-1. Overall structure]

[0052] figure 1It is a partial cross-sectional view of a vehicle 10 mounted with a motor 12 as a rotating electric machine according to the first embodiment of the present invention, focusing on a cooling system (refrigerant supply mechanism). figure 2 It is a partially enlarged cross-sectional view showing the flow of the cooling oil 42 in the motor 12 . exist figure 2 In , thick arrows in solid lines, dashed lines, and dashed-dotted lines indicate the flow of the cooling oil 42 . For ease of understanding, it is desirable to note that, figure 1 and figure 2 is described later Figure 5 The cross-sectional view along the I-I line, and is for figure 1 and figure 2 A cross-sectional view of the side cover 30 (described later) in which all the introduction holes 32 and the first to third discharge holes 36, 38, and 40 described later pass through ( image 3 sectional view along the...

no. 2 approach

[0097] 1. Explanation of overall structure (differences from the first embodiment)

[0098] In the second embodiment, the shape of the cylindrical member 52a is different from that of the cylindrical member 52 of the first embodiment.

[0099] Figure 6 It is an external perspective view of the cylindrical member 52a of 2nd Embodiment. Figure 7 It is a rear view for explaining the flow of the cooling oil 42 in the cylindrical member 52a of the second embodiment. exist Figure 7 In the figure, arrows of dotted lines indicate the flow of cooling oil 42 supplied to the speed reducer 14 side through the second protruding wall portion 84 , and arrows of one-dot chain line indicate the flow of cooling oil 42 supplied to the rotor core 62 side without passing through the second protruding wall portion 84 . The flow of oil 42 (later described Figure 8 the same. ).

[0100] Such as Figure 6 As shown, the second protruding wall portion 84 of the cylindrical member 52a is forme...

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide a rotary electric machine that can cool the inside suitably.SOLUTION: Coolant supply means 30 of a rotary electric machine 12 supplies coolant fluid 42 to a bottom surface 70 of a cylindrical member 52 from a point closer to one end of a rotation axis 50 than the bottom surface 70. The bottom surface 70 has a penetration hole 86 that penetrates in the axial direction of the rotation axis 50, through which the coolant fluid 42 is supplied into the cylindrical member 52. The bottom surface 70 has one or a plurality of inner side protrusion wall parts 84 that penetrates on the other end of the rotation axis 50 and on the outer side in the radial direction than the penetration hole 86, and adjacent ends of the inner side protrusion wall parts 84 are arranged so as to displace with each other in the circumferential direction.

Description

technical field [0001] The present invention relates to a rotating electrical machine capable of properly cooling the inside. Background technique [0002] Patent Document 1 discloses a plurality of structures for cooling a motor ( Figure 1 ~ Figure 1 1). Among these structures, there is a structure in which the cooling oil is circulated through the inside of the shaft 28 as a structure in which the cooling oil is supplied from the inner side of the motor toward the radially outer side ( Figure 7 and Figure 8 ). [0003] 【Prior technical literature】 [0004] 【Patent Literature】 [0005] [Patent Document 1] Japanese Unexamined Patent Publication No. 2003-324901 [0006] 【Problems to be solved by the invention】 [0007] As in Patent Document 1 Figure 7 and Figure 8 As shown, in the structure in which the cooling oil is supplied to the inside of the rotating electric machine through the inside of the rotating shaft, the specifications of the refrigerant supply path...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/193
CPCH02K9/193
Inventor 土江哲广
Owner HONDA MOTOR CO LTD