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Axial direction sectional type motor rotor with arc-shaped air deflectors

A technology for motor rotors and air deflectors, applied in the direction of magnetic circuit shape/style/structure, electromechanical devices, electrical components, etc., can solve the problems of internal cooling of the rotor and poor cooling effect of the permanent magnet synchronous motor rotor, etc., and achieve reduction The weight and moment of inertia, the rotor structure is compact and strong, and the effect of convective heat transfer of the rotor is enhanced

Active Publication Date: 2015-04-29
HUAZHONG UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0006] Aiming at the above defects or improvement needs of the prior art, the present invention provides a motor rotor cooling structure with arc-shaped wind deflectors, thereby solving the problem of poor cooling effect of the rotor of the fractional slot concentrated winding permanent magnet synchronous motor and the inability to directly cool the inside of the rotor. Technical issues with cooling

Method used

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  • Axial direction sectional type motor rotor with arc-shaped air deflectors
  • Axial direction sectional type motor rotor with arc-shaped air deflectors
  • Axial direction sectional type motor rotor with arc-shaped air deflectors

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0033] The invention provides a permanent magnet synchronous motor rotor with fractional slot concentrated winding, and the rotor structure is also suitable for other types of permanent magnet motors, especially permanent magnet motors with high rotor loss and difficult heat dissipation.

[0034] Such as figure 1 As shown, the rotor motor rotor involved in the present invention includes a rotat...

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Abstract

The invention discloses an axial direction sectional type motor rotor with arc-shaped air deflectors. The rotor comprises a rotation shaft, a barrate and a rotor iron core mechanism in the radial direction from inside to outside, wherein the rotor iron core mechanism is arranged on the barrate in a sleeving mode. Multiple openings in the axial direction are formed in the barrate, the rotor iron core mechanism is composed of multiple sections in the axial direction, the air deflectors are arranged among the sections, arc-shaped air channels are formed in the axial direction in the air deflectors, and negative pressure is formed. According to the motor rotor, air can circulate in the air channels of the rotor in the axial direction and the radial direction by making full use of the negative pressure formed in high-speed rotation of the rotator, and heat convection capability is enhanced. Additionally, the structure of the motor rotor decreases wind drag of the rotator to a great extent, and the efficiency of the whole motor is improved.

Description

technical field [0001] The invention belongs to the field of motor cooling, and more specifically relates to a motor rotor cooling structure with an arc-shaped air deflector. Background technique [0002] The motor is an electromechanical energy conversion device widely used in various fields of the national economy, and plays an irreplaceable role in the production and life of modern society. However, during the operation of the motor, due to various losses, the internal heating of the motor will be caused, thereby endangering the safe operation of the motor and reducing the life of the motor. [0003] Compared with integer slot winding, fractional slot concentrated winding has simple winding structure, convenient winding, and short winding end, so it has a very broad application prospect. However, when the permanent magnet synchronous motor with fractional slot concentrated winding runs at high speed, the rotor core loss and the eddy current loss of the magnetic steel inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/02H02K1/32
CPCH02K1/276H02K1/278H02K1/32
Inventor 曲荣海张斌范兴纲
Owner HUAZHONG UNIV OF SCI & TECH
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