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Electric vehicle hybrid excitation hub motor

A technology of hybrid excitation and wheel hub motors, which is applied in the direction of synchronous machines, electrical components, electromechanical devices, etc., can solve problems such as not being retrieved, and achieve the effect of reducing volume and weight

Active Publication Date: 2016-08-31
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] At present, the applicant has not retrieved relevant reports on the use of the above technologies

Method used

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Embodiment Construction

[0033] The invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] figure 1 It is a longitudinal sectional view of a hybrid excitation hub motor for an electric vehicle of the present invention.

[0035] The electric vehicle hybrid excitation hub motor consists of a shaft (1), a bearing (2), a hub (3), a first rotor pole (4), a first stator pole (5), a first armature winding (6), The stator core (7), the field winding (8), the permanent magnet (9), the second stator pole (10), the second armature winding (11), the second rotor pole (12) and the hub cover (13).

[0036] Sector-shaped stator cores (7) with a number of 2N are fixed back-to-back in the middle of the shaft (1), N is a natural number; the axial sides of the stator core (7) are respectively fixed on the first rotor on the hub (3) pole (4) and the second rotor pole (12) fixed on the hub cover (13);

[0037] The end face of the stator core (7) facing the first roto...

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Abstract

The invention provides an electric vehicle hybrid excitation hub motor which is composed of a shaft, a hub, rotor poles, stator poles, two sets of armature windings, stator iron cores, excitation windings, permanent magnets and a hub cap. The fan-shaped stator iron cores are fixed in the middle of the shaft in a back-to-back way. The two sides of the stator iron cores are provided with the protruding stator poles. The rotor poles are fixed on the internal walls of the two end surfaces of the hub. One permanent magnet is clamped between every two stator iron cores which are aligned in a circumferential direction. A groove is arranged between the two opposite stator iron cores and used for embedded arrangement of the excitation windings. Each stator pole is provided with the armature windings in a winding way. Integration of the hub and a driving motor is effectively realized by the technology so that the size and the weight of a driving system can be reduced; the rotor has no permanent magnet or excitation winding so that the possibility of demagnetization of the permanent magnets caused by impact can be reduced; a permanent magnetic field can be enhanced by an electric excitation magnetic field at low speed so that high-torque output can be realized; and the permanent magnetic field can also be weakened at high speed so that high-speed weak magnetic control can be realized.

Description

technical field [0001] The invention relates to a hybrid excitation hub motor of an electric vehicle, which belongs to the technical field of electric vehicles. Background technique [0002] The motor with two excitation sources of permanent magnet and electric excitation winding is called hybrid excitation motor, which not only has the advantages of high efficiency and power density of permanent magnet synchronous motor, but also has stronger magnetic field adjustment ability than permanent magnet synchronous motor. In view of the advantages of the hybrid excitation motor with a wide speed range, it is very suitable for use as an electric vehicle drive motor. [0003] The hub motor integrates the motor and the transmission device into the hub, so the transmission part of the electric vehicle is greatly simplified, which is the first advantage of the hub motor. The second advantage of the hub motor is that it can realize flexible and diverse designs of the car. The hub moto...

Claims

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Application Information

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IPC IPC(8): H02K21/04
CPCH02K21/046
Inventor 史立伟吴新振郭盈志张学义刘从臻
Owner SHANDONG UNIV OF TECH
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