Concentrated winding motor, generator and motor
A technology of concentrated windings and generators, which is applied in the field of generators, motors, and concentrated winding motors. It can solve problems such as too large positioning torque, and achieve the effects of maintaining torque, increasing frequency, and suppressing amplitude.
Active Publication Date: 2016-01-06
深圳市大富新能源有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Therefore, the most effective measure for the traditional distributed winding permanent magnet motor to suppress the positioning torque, the concentrated winding permanent magnet motor cannot be used, and the excessive positioning torque of the concentrated winding permanent magnet motor is still a big problem
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] Such as figure 1 As shown, a concentrated winding motor 100 of the present invention, the rotor yoke 10 is pasted with 2P pieces of magnetic steel 20 with N and S polarities distributed alternately with a spacing of Sm, and the stator core 30 is provided with Z slots 31 and Z Stator teeth 32. According to traditional theoretical analysis and experiments, the period of the positioning torque of the permanent magnet motor with the number of poles and slots is...
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
Login to View More Abstract
The invention relates to a permanent magnet motor with concentrated winding, in particular to a concentrated winding motor, a generator and an electric motor. The rotor yoke of the concentrated winding motor is pasted with 2P blocks of magnetic steel with N and S polarities distributed alternately at a distance of Sm, and the stator The iron core is provided with Z slots and Z stator teeth. The slot width Sc between two adjacent stator teeth of the concentrated winding motor and the distance Sm between two adjacent magnetic steels satisfy: Sm / Sc=(0.83 ~1.3); the ratio of the width τm of the magnetic steel to the pole pitch τ satisfies: τm / τ≥(0.75~0.9); the surface of the air gap of the stator teeth of the stator core is convex-concave-convex, double-convex wavy or It has a three-convex wave shape. The concentrated winding motor of the present invention further increases the positioning torque frequency by adopting the stator air gap surface with high-order waveform, so as to achieve the purpose of homogenizing the air gap reluctance and suppressing the positioning torque.
Description
technical field [0001] The invention relates to a permanent magnet motor with concentrated winding, in particular to a concentrated winding motor, generator and motor. Background technique [0002] The rotors of permanent magnet motors generally use rare earth permanent magnets, such as NdFeB permanent magnets. Rare earth permanent magnet materials are becoming scarcer and more expensive, so it is necessary to reduce the amount of permanent magnets and improve the utilization rate of permanent magnets. [0003] Permanent magnet motors with concentrated windings can significantly improve the power and energy indicators of permanent magnet motors, such as: winding utilization, efficiency, power volume ratio, torque volume ratio, etc., and improve the motor manufacturing process. [0004] However, the excessively large cogging torque is still a problem for concentrated winding permanent magnet motors. The optimal number of magnetic poles and cogging slots can suppress the cogg...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/16H02K1/27
CPCH02K29/03H02K1/146H02K1/278H02K2213/03H02K1/27915
Inventor 漆亚梅
Owner 深圳市大富新能源有限公司