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Embedded magnetic steel outer-rotor core assembly and wheel hub motor

A technology of rotor iron core and hub motor, applied in the direction of magnetic circuit rotating parts, electric components, magnetic circuit, etc., can solve the problems of small response speed of overload capacity, small change of saliency rate, and weak structure, etc. Large changes in moment density, saliency rate, and flexible distance changes

Pending Publication Date: 2019-03-08
HUMAN HORIZONS (JIANGSU) TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide a built-in magnetic steel outer rotor core assembly and hub motor to solve the problem that the hub motors in the prior art mostly use surface-mounted magnets, which are weak in structure and easy to demagnetize. In addition, For the existing single-layer or double-layer magnetic steel structure with the same shape, the flexibility of the combination is poor, the magnetic accumulation compensation is small, the salient pole ratio changes small, and the torque increase is small, the overload capacity and the response speed are small Technical problems

Method used

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  • Embedded magnetic steel outer-rotor core assembly and wheel hub motor
  • Embedded magnetic steel outer-rotor core assembly and wheel hub motor
  • Embedded magnetic steel outer-rotor core assembly and wheel hub motor

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Embodiment Construction

[0026] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments.

[0027] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application.

[0028] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0029] In the description of this applica...

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Abstract

The invention relates to the technical field of wheel hub motors, and in particular relates to an embedded magnetic steel outer-rotor core assembly and a wheel hub motor. The embedded magnetic steel outer-rotor core assembly comprises a rotor core and multiple sets of magnetic steels; each set of magnetic steels comprises a first magnetic steel and a second magnetic steel; furthermore, the two areradially distributed along a stator; the first magnetic steel is a V-shaped segmented magnetic steel; the second magnetic steel is a U-shaped segmented magnetic steel; the rotor core is provided withmultiple sets of embedded grooves; each set of embedded grooves comprises a first embedded groove and a second embedded groove; the first magnetic steel is arranged in the first embedded groove; andthe second magnetic steel is arranged in the second embedded groove. Visibly, the magnetic steel is installed in the embedded groove; the assembly is simple and convenient; furthermore, the V-shaped magnetic steel and the U-shaped magnetic steel are combined; the assembly is flexible and diverse; the magnetism gathering effect of the U-shaped magnetic steel on the V-shaped magnetic steel is compensated; on the basis of the increased magnetic flow, the salient pole rate is greatly changed; magnetic circuit effects of a d axis and a q axis are reasonably optimized; the flux density of the wheelhub motor under high torque is reduced; and the torque density is increased.

Description

technical field [0001] The present application relates to the technical field of in-wheel motors, and in particular, to an embedded magnetic steel outer rotor core assembly and in-wheel motors. Background technique [0002] At present, electric vehicles refer to vehicles that are powered by on-board power supply and drive wheels driven by motors, and meet the requirements of road traffic and safety regulations. Due to their smaller impact on the environment than traditional vehicles, their prospects are widely optimistic. Existing electric vehicles mostly use in-wheel motors, that is, the power, transmission and braking devices are integrated into the hub. Different from ordinary motors, the in-wheel motor adopts an outer rotor structure. The in-wheel motors in the prior art generally use surface-mounted Magnetic steel, that is, in the form of bonding with glue, has a weak structure and is easy to demagnetize. In addition, the rotor core of the in-wheel motor is mostly equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27
CPCH02K1/2786
Inventor 丁烜明
Owner HUMAN HORIZONS (JIANGSU) TECH CO LTD
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