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Rotating electrical machines and vibration suppression structures for rotating electrical machines

A technology for rotating motors and connecting components, which is applied in the direction of motors, electric components, electric vehicles, etc., to achieve the effects of improving assembly, suppressing increase, and suppressing the number of parts

Active Publication Date: 2021-12-28
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, in the above-mentioned rotating electrical machine, there is a possibility that ring 0-order mode vibration (vibration in which the stator core expands and contracts concentrically) may occur in the stator due to the above-mentioned electromagnetic excitation.

Method used

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  • Rotating electrical machines and vibration suppression structures for rotating electrical machines
  • Rotating electrical machines and vibration suppression structures for rotating electrical machines
  • Rotating electrical machines and vibration suppression structures for rotating electrical machines

Examples

Experimental program
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Effect test

no. 1 approach

[0057] [rotating motor]

[0058] figure 1 It is a schematic configuration diagram (sectional view) showing the overall configuration of the rotating electrical machine 1 according to the embodiment.

[0059] figure 1 The rotating electric machine 1 shown is, for example, a running motor mounted in a vehicle such as a hybrid vehicle or an electric vehicle. However, the configuration of the present invention is not limited to running motors, but can also be applied to motors for power generation, motors for other purposes, and rotating electric machines (including generators) other than vehicles.

[0060] The rotating electrical machine 1 includes a housing 2 , a stator 3 , a rotor 4 , and an output shaft 5 .

[0061] The output shaft 5 is rotatably supported by the housing 2 .

[0062]The rotor 4 has a rotor core 6 and a magnet (not shown) attached to the rotor core 6 . The rotor core 6 is formed in a cylindrical shape fitted on the output shaft 5 . It should be noted tha...

no. 2 approach

[0097] Figure 4 is a cross-sectional view of the rotating electrical machine 1 according to the second embodiment, and is the same as image 3 Quite a cutaway view. The second embodiment differs from the above-described first embodiment in that the above-mentioned buffer portion is formed as a laminated structure of a resin portion and a metal portion.

[0098] exist Figure 4 In the vibration suppressing structure P of the rotary electric machine 1 shown, the first seat 51 is formed by laminating the resin part 100 and the metal part 101 in the bushing axial direction. The resin portion 100 and the metal portion 101 are formed coaxially with the axis O, and are formed in an annular shape having the same inner diameter and outer diameter. The resin part 100 and the metal part 101 may be formed by overlapping separate members, or may be integrally formed by insert molding or the like. In this embodiment, the resin part 100 can use the same material as that of the above-men...

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PUM

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Abstract

The present invention provides a rotating electric machine and a vibration suppressing structure of the rotating electric machine capable of suppressing generation of noise while simplifying the structure. The rotating electrical machine (1) of the present invention comprises: a stator core (11); a casing (2) that accommodates the stator core (11); a sleeve 50 that penetrates the casing (2) in the axial direction of the stator core (11) ) through the housing through-hole (49); and the fastening connection member (53), which passes through the stator through-hole (25) passing through the stator core (11) in the axial direction, and the sleeve (50) The inner side of the stator core (11) and the housing (2) are fastened together.

Description

technical field [0001] The present invention relates to a rotating electric machine and a vibration suppressing structure of the rotating electric machine. Background technique [0002] In a rotating electric machine, a magnetic field is formed in a stator core by supplying current to a coil, and magnetic attraction and repulsion (electromagnetic excitation) are generated between the permanent magnets of the rotor and the stator core. Thus, the rotor rotates relative to the stator. [0003] In addition, in the above-mentioned rotating electric machine, vibration in the ring 0th order mode (vibration in which the stator core expands and contracts concentrically) may occur in the stator due to the above-mentioned electromagnetic excitation. Vibration of the stator is transmitted to the surroundings through the housing that holds the stator. At this time, when the electromagnetic excitation excites a resonance mode originating in the structure of the casing, there is a possib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/02H02K29/03H02K1/18
CPCH02K21/02H02K29/03H02K1/185Y02T10/64
Inventor 秦野芳明壹岐友贵
Owner HONDA MOTOR CO LTD