Low-fluctuation permanent magnetic rotor of electromobile motor

A technology for electric vehicles and permanent magnet rotors, applied in electric vehicles, motors, electric components, etc., can solve the problems of reduced stator slot area, increased motor manufacturing cost, reduced output, etc., to reduce core loss, reduce torque fluctuations, The effect of reducing mechanical vibration

A technology for electric vehicles and permanent magnet rotors, applied in electric vehicles, motors, electric components, etc., can solve the problems of reduced stator slot area, increased motor manufacturing cost, reduced output, etc., to reduce core loss, reduce torque fluctuations, The effect of reducing mechanical vibration

CN105871097AActive Publication Date: 2016-08-17SHANGHAI CHUANYE ELECTRIC MACHINE
8 Cites 2 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-fluctuation permanent magnetic rotor of electromobile motor
  • Low-fluctuation permanent magnetic rotor of electromobile motor
  • Low-fluctuation permanent magnetic rotor of electromobile motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention. All similar structures and similar changes of the present invention should be included in the scope of protection of the present invention. The commas in all indicate the relationship between and.

[0017] Such as figure 1 As shown, in the low-fluctuation permanent magnet rotor of an electric vehicle motor provided by the first embodiment of the present invention, the rotor 11 is provided with a plurality of permanent magnet units, and the permanent magnet units include permanent magnet slots opened on the rotor 12, and two magnetic steels 13 embedded in the permanent magnet slot, the permanent magnet slot 12 is V-shaped with the pointed top facing inward (inwardly refers to the direction of the rotor axis), and the two permanent magnet slots A magnetic steel 13 is arra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a low-fluctuation permanent magnetic rotor of an electromobile motor, and relates to the technical field of motors. The technical problem of reducing torque fluctuation of the motors is solved. The rotor is provided with multiple permanent magnetic units and multiple regulation holes which are in one-to-one correspondence with all the permanent magnetic units; each permanent magnetic unit comprises V-shaped permanent magnetic slots formed in the rotor and two pieces of magnetic steel embedded in the permanent magnetic slots, and each regulation hole is located between the two pieces of the magnetic steel of the corresponding permanent magnetic unit. The low-fluctuation permanent magnetic rotor is specially suitable for electromobiles to use.

Description

technical field [0001] The invention relates to motor technology, in particular to a low-fluctuation permanent magnet rotor technology of an electric vehicle motor. Background technique [0002] Electric vehicles are an important way to solve energy crisis and environmental pollution. The driving motor for electric vehicles restricts the research and development and industrialization process of electric vehicles in China. Especially in the high-efficiency built-in permanent magnet synchronous motor suitable for electric vehicles, there are defects such as low power density, narrow high-speed constant power range, large torque fluctuation, low overload capacity and poor reliability, which make it difficult to meet the requirements. The driving motor for electric vehicles restricts the research and development and industrialization process of electric vehicles in China. [0003] Cogging torque (also known as reluctance torque) is a fatal flaw in the speed control system of a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
17 Aug 2016
Publication
CN105871097A
IPC
H02K1/27
CPC
H02K1/276; Y02T10/64
Inventors
ζž—εΎ·θŠ³