Permanent magnet synchronous stator body and permanent magnet synchronous motor
A permanent magnet synchronous motor and stator body technology, applied in magnetic circuits, electrical components, electromechanical devices, etc., can solve the problems of low motor work efficiency, affect user experience, poor motor performance, etc., achieve light weight, improve output power and Work efficiency, good cooling effect
Pending Publication Date: 2019-10-22
宁波华表机械制造有限公司
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] At this stage, new energy vehicles use electric energy as the vehicle's power source, specifically using high-efficiency, energy-saving and environmentally friendly permanent magnet synchronous motors. user experience
[0004] In addition, due to the poor performance of the motor, the motor generates a lot of heat when it is working, which makes the working efficiency of the motor low
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
other Embodiment approach
[0041] In other embodiments, the cooling channel group can also include multiple layers arranged at intervals along the radial direction of the housing to form a multi-layer cooling channel to achieve the purpose of multi-layer heat dissipation. The specific heat dissipation form depends on the need, and there is no limitation here. .
[0042] Preferably, the water passage area of the cooling channel accounts for more than 70% of the shell area, and can be 80% or 90%, etc., and the area of the cooling channel can be appropriately increased under the condition of ensuring the structural strength of the shell.
[0043] Furthermore, fan blades (not shown) are arranged on the output shaft of the motor of the present invention. During the operation of the rotor, the fan blades push the heat flow around the motor rotor and stator coils to the stator, and conduct it to the heat flow in the motor housing through the stator. The heat conduction liquid is taken out of the motor, whi...
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 discloses a permanent magnet synchronous motor stator body and a permanent magnet synchronous motor, and relates to the field of motors. According to the invention, tooth slots of the stator body are arranged in an inclined manner, the tooth slots in adjacent stator punching sheets are opposite in inclination direction, the tooth slots of the stator body formed by the stator punchingsheets in a combined mode are of a V-shaped structure, the axial force of the upper section of the V-shaped structure is opposite to that of the lower section of the V-shaped structure, and the resultant axial force is 0, so that the stability of the motor is ensured, the working efficiency of the motor is improved, and the torque ripple, vibration and noise are reduced. The stability of the newenergy automobile in long-term operation at a high temperature is effectively ensured through arranging cooling channels on a shell. Permanent magnets on rotor punching sheets of the motor are combined in a U-shaped or V-shaped display mode in permanent magnet slots of the rotor punching sheets, and the permanent magnets are distributed and embedded in the rotor body in a similar sine mode along the circumference, so that the torque ripple is small, the control precision of a control system is high, the flux-weakening acceleration of the permanent magnet synchronous motor is facilitated, the performance of the permanent magnets is better improved, and the output power and the working efficiency of the motor are improved.
Description
technical field [0001] The invention relates to the technical field of motors, in particular to a stator body of a permanent magnet synchronous motor and the permanent magnet synchronous motor. Background technique [0002] With the development and progress of science and technology, automobiles have brought convenience to our lives, but at the same time aggravated the environmental and energy crisis and brought serious pollution to the air environment. It is human beings to seek new energy as an alternative power source for automobiles. An important research topic in society at present. [0003] At this stage, new energy vehicles use electric energy as the power source of the vehicle, specifically the use of high-efficiency, energy-saving and environmentally friendly permanent magnet synchronous motors. user experience. [0004] In addition, due to the poor performance of the motor, the motor generates a lot of heat energy during operation, so that the working efficiency ...
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 & AuthorityApplications(China)
IPC IPC(8): H02K1/16H02K5/20H02K1/27
CPCH02K1/165H02K5/20H02K1/2766H02K2213/03
Inventor刘胜恒梁荣陈小良苗鑫
Owner宁波华表机械制造有限公司