Rotor for rotating electric machine, manufacturing method thereof, and rotating electric machine

A technology for rotating electric machines and manufacturing methods, which is applied in the direction of manufacturing motor generators, manufacturing stator/rotor bodies, electromechanical devices, etc., which can solve the problems of not reaching the cooling medium and being difficult to cool the rotor sufficiently, so as to ensure temperature difference and improve Cooling effect, flow-promoting effect

Active Publication Date: 2021-06-22
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when gaps are formed in the rib portions formed between the plurality of through-hole sheets, the flow of the cooling medium in the rotor does not reach a level, and it may be difficult to sufficiently cool the rotor.
[0006] Therefore, there is room for improvement in improving the cooling effect of the rotor

Method used

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  • Rotor for rotating electric machine, manufacturing method thereof, and rotating electric machine
  • Rotor for rotating electric machine, manufacturing method thereof, and rotating electric machine
  • Rotor for rotating electric machine, manufacturing method thereof, and rotating electric machine

Examples

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Embodiment Construction

[0031] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the embodiment, a rotating electrical machine (motor for traveling) mounted on a vehicle such as a hybrid vehicle or an electric vehicle will be described as an example.

[0032]

[0033] figure 1 It is a schematic configuration diagram showing the overall configuration of the rotating electrical machine 1 according to the embodiment. figure 1 It is a figure including the cross section cut with the imaginary plane containing the axis C.

[0034] Such as figure 1 As shown, the rotating electric machine 1 includes a housing 2, a stator 3, a rotor 4, an output shaft 5, and a cooling medium supply mechanism (not shown).

[0035]The case 2 has a cylindrical box shape for accommodating the stator 3 and the rotor 4 . A cooling medium (not shown) is accommodated in the casing 2 . A part of the stator 3 is arranged in a state immersed in the cooling medium in the housing...

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PUM

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Abstract

Provided are a rotor for a rotary electric machine capable of improving the cooling effect of the rotor, a method for manufacturing the same, and the rotary electric machine. A rotor of a rotating electric machine is provided with a rotor core (21) composed of a plurality of laminated steel plates (41-48) and having a plurality of cooling medium circulation holes (31, 32), in the rotor core (21), while the cooling medium flow holes (31, 32) of the steel plates (41-48) adjacent in the axial direction are displaced from each other in the circumferential direction, the one adjacent in the axial direction One of the cooling medium flow holes formed on one of the steel plates and one of the cooling medium flow holes formed on the other steel plate communicate with each other in a one-to-one correspondence, thereby forming a continuous spiral in the axial direction. Shaped cooling medium passage (29).

Description

technical field [0001] This application is based on Japanese patent application 2018-104238 (application date 2018.05.31), and enjoys priority benefits based on this application. This application incorporates the entire contents of this application by reference thereto. [0002] Embodiments of the present invention relate to a rotor for a rotary electric machine, a method of manufacturing the same, and a rotary electric machine. Background technique [0003] In a rotating electrical machine mounted on a hybrid vehicle, an electric vehicle, or the like, a magnetic field is formed in a stator core by supplying current to a coil, and magnetic attraction and repulsion force is generated between a rotor magnet and the stator core. Thus, the rotor rotates relative to the stator. [0004] As a rotor used in a rotating electric machine, a rotor including a rotor core formed by laminating a plurality of electromagnetic steel sheets is known. For example, in Japanese Patent Applica...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H02K1/32H02K1/27H02K15/03
CPCH02K1/32H02K1/2706H02K15/03
Inventor竹岛彻高桥忠伸
OwnerHONDA MOTOR CO LTD