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Rotor structure, permanent magnet assisted synchronous reluctance motor and electric vehicle

A technology of rotor structure and rotor body, which can be applied to electric vehicles, motors, electric components, etc., and can solve the problems of low motor efficiency

Active Publication Date: 2020-10-23
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a rotor structure, permanent magnet assisted synchronous reluctance motor and electric vehicle, to solve the problem of low motor efficiency in the prior art

Method used

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  • Rotor structure, permanent magnet assisted synchronous reluctance motor and electric vehicle
  • Rotor structure, permanent magnet assisted synchronous reluctance motor and electric vehicle
  • Rotor structure, permanent magnet assisted synchronous reluctance motor and electric vehicle

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Embodiment Construction

[0041] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0042] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0043] It should be noted that the terms "first" and "second" in the specification, claims and drawings of the present application are used to distinguish similar objects, ...

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Abstract

The invention provides a rotor structure, a permanent magnet assisted synchronous reluctance motor and an electric vehicle. The rotor structure includes the rotor body. The rotor body is provided with a magnetic steel groove group. The magnetic steel groove group includes the inner magnetic steel groove. The rotor body is also provided with a first folding groove and a second folding groove. The first folding groove and the inner layer The first end of the magnetic steel groove is connected, the geometric centerline of the length direction of the first folding groove and the geometric centerline of the length direction of the first end of the inner magnetic steel groove have a first angle, and the second folding groove and the inner The second end of the magnetic steel groove of the layer is connected, and the geometric centerline of the length direction of the second folding groove has a second angle with the geometric centerline of the second end of the inner layer magnetic steel groove, wherein the first angle and The second included angles are not equal. Setting the first included angle to be unequal to the second included angle can optimize the magnetic circuit of the rotor structure, thereby increasing the torque of the rotor structure, reducing the effect of the rotating torque, improving the anti-magnetic demagnetization ability of the motor, and improving the the efficiency of the motor.

Description

technical field [0001] The invention relates to the technical field of motor equipment, in particular to a rotor structure, a permanent magnet assisted synchronous reluctance motor and an electric vehicle. Background technique [0002] The torque output by the motor is not a constant value, but changes approximately sinusoidally as the rotor rotates in the stator. The ratio of the peak-to-peak value of the torque output waveform to the average value is called the torque ripple. The larger the torque ripple, the more unstable the output of the motor, and the greater the vibration and noise caused. Therefore, the size of the torque ripple is one of the important parameters to measure the quality of the motor. [0003] Permanent magnet reluctance motor is a new type of motor, because it can make full use of permanent magnet torque and reluctance torque, it has been widely used in modern production and life by more and more industries. For permanent magnet motors, the risk of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/27H02K29/03
CPCH02K1/2766H02K29/03H02K2213/03Y02T10/64
Inventor 廖克亮胡余生陈彬卢素华
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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