Rotor structure, permanent magnet assisted synchronous reluctance motor and electric vehicle
A rotor structure, permanent magnet technology, applied in electric vehicles, synchronous motors with static armatures and rotating magnets, motors, etc., can solve problems such as poor anti-magnetic degeneration ability
Active Publication Date: 2020-10-23
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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- Application Information
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Problems solved by technology
[0005] The main purpose of the present invention is to provide a rotor structure, a permanent magnet assisted synchronous reluctance motor and an electric vehicle, so as to solve the problem of poor anti-magnetic demagnetization ability of the motor in the prior art
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[0039]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.
[0040] 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.
[0041] 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, b...
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The invention provides a rotor structure, a permanent magnet auxiliary synchronous reluctance motor and an electric vehicle. The rotor structure includes a rotor body, the rotor body is provided with a magnetic steel slot group, the magnetic steel slot group includes an outer magnetic steel slot, and the outer magnetic steel slot includes: a first outer magnetic steel slot segment; a second outer magnetic steel slot The first outer layer magnetic steel slot section and the second outer layer magnetic steel slot section are arranged opposite to each other along the radial direction of the rotor body, and the geometric centerline of the length direction of the first outer layer magnetic steel slot section is the same as the second outer layer magnetic steel slot section. The extension line of the geometric center line in the length direction of the magnetic steel slot segment has a first included angle; the first folding slot, the first folding slot is connected with the first outer layer magnetic steel slot segment; the second folding slot, the second folding slot It is communicated with the second outer layer magnetic steel groove segment, and the geometric center line of the first folding groove in the length direction and the extension line of the geometric center line in the longitudinal direction of the second folding groove have a second included angle, and the second included angle is larger than the second angle. an angle. This arrangement improves the overall anti-demagnetization capability of the motor with the rotor structure.
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] In the prior art, spaces are formed between the two ends of the magnet accommodating groove and the two ends of the permanent magnet to improve the demagnetization resistance of the rotor. In the prior art, only the pole arc range of the magnetic steel is given, that is, the spatial range of the fold groove is given. In the prior art, magnetic isolation slots are provided at the ends of the permanent magnets, and the angle between the magnetic isolation slots and the permanent magnets and the angle between the V-shaped permanent magnets are specified. However, the extension line of the magnetic separation slot relative to the magnetic steel is close to the center line of the pole, which is not conducive to the increase of the permanent magnet...
Claims
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IPC IPC(8): H02K1/27
CPCH02K1/2766H02K2213/03Y02T10/64H02K21/14H02K29/03H02K1/276
Inventor 董明珠胡余生童童陈彬肖勇卢素华
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION