Motor, electromagnetic design structure thereof, and machining method for magnetic steel
A technology of electromagnetic design and processing methods, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit rotating parts, manufacturing stator/rotor body, etc., can solve the problem of expensive magnetization equipment
Inactive Publication Date: 2015-12-23
SCHAEFFLER TECH AG & CO KG
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When magnetizing the entire rotor, more magnetizing energy is required, making the magnetizing equipment much more expensive
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
[0043] Embodiments of the present invention are described below with reference to the drawings.
[0044] Figure 5 A schematic diagram of the motor rotor design of the present invention is shown. Such as Figure 5 As shown, a magnetic pole is composed of two pieces of magnetic steel 10, and the two pieces of magnetic steel 10 are arranged parallel to each other in the rotor core 20, which is the same as the parallel magnetic pole structure in the prior art. On the other hand, the magnetization direction 30 of the magnet 10 is set to be inclined relative to the surface of the magnet 10 to form a V shape or an inverted V shape, as in the prior art V-shaped magnetic pole structure.
[0045] Figure 8 is a schematic diagram of the magnetic field line distribution of the electromagnetic design structure of the present invention, Figure 8A is an enlarged schematic diagram of the distribution of magnetic lines of force around the magnetic steel of the electromagnetic design stru...
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 provides a motor, an electromagnetic design structure thereof, and a machining method for a magnetic steel, and the structure and method are mainly used for the arrangement of internal poles in a rotor. The electromagnetic design structure is mainly used as a rotor magnetic pole design structure, wherein the internal edge of the rotor is provided with a plurality of magnetic poles in the circumferential direction. Each magnetic pole consists of two magnetic steels, and the magnetic steels of each magnetic pole are parallel to each other in an aligned manner. The magnetization direction of each magnetic steel is inclined relative to the surface of the magnetic steel. The motor comprises the above electromagnetic design structure. The machining method comprises the steps: providing a magnetic steel blank, cutting the magnetic steel blank in a direction intersected with the magnetic steel blank in an inclined manner so as to generate the magnetic steels, and enables the magnetization direction of each magnetic steel to be inclined relative to the surface of the magnetic steel. According to the invention, the advantages of a V-shaped magnetic pole structure and a parallel magnetic pole structure in the prior art are combined.
Description
technical field [0001] The invention relates to motors, especially permanent magnet synchronous motors. The invention also relates to the electromagnetic design structure of the motor, especially the arrangement structure of the magnetic poles of the motor in the rotor of the motor. In addition, the present invention relates to a method for processing magnets of electric motors. Background technique [0002] Permanent magnet synchronous motors (PMSMs) are the best motor choice for electric powertrain applications due to their high power density, wide speed range, and good torque-speed characteristics. In order to maintain high speed, one pole of the motor is usually divided into two magnets. There are generally two ways to design the magnets in the rotor of the motor, namely: a magnetic pole structure with parallel magnetic steels and a magnetic pole structure with V-shaped magnetic steels. The traditional design structure with one magnetic pole in the rotor is as follows...
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 IPC IPC(8): H02K1/24H02K1/27H02K15/03
CPCH02K1/27
Inventor 陈静吴振华陈青张霞
Owner SCHAEFFLER TECH AG & CO KG