Self-starting and single-phase permanent magnet motor
A single-phase permanent magnet, motor technology, applied in the direction of a single motor speed/torque control, torque ripple control, etc., can solve the problems of inability to adjust speed and limited application range.
Active Publication Date: 2017-10-24
JIANGMEN SUNYA MOTOR CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Synchronous motors in the prior art can only operate synchronously according to the frequency of the power supply, and self-starting single-phase permanent magnet synchronous motors are no exception. Frequency conversion power supply is required for speed regulation. Because the speed cannot be adjusted in a more economical way, the application range is limited.
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
[0031] The basic electromagnetic structure of the motor of the centrifugal pump in the first embodiment of the present invention is as follows: figure 1 shown, including:
[0032] ——The rotor 200 is a 4-pole permanent magnet rotor whose cross section is divided into four symmetrical 90° sectors by two mutually perpendicular symmetry axes 400 and whose radial magnetization is N, S, N, S;
[0033] - The stator 100 is composed of a circular iron core 101 with 4 salient poles and a winding 102; the winding 102 is a coil element with an insulating frame wound on each of the 4 salient poles, and then connected in series according to the winding direction to form 4 poles, and Therefore, when energized, a 4-pole main magnetic flux passing through the air gap between the stator and rotor is generated;
[0034] ——The width of the air gap between each salient pole of the stator core 101 and the rotor 200 gradually narrows in the counterclockwise direction; The geometric axes of the per...
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 self-starting and single-phase permanent magnet motor. An air gap between a permanent magnet rotor and a stator is narrowed down t a prescribed steering direction along the lower edge of each pole, wherein the permanent magnet rotor and the stator have the same number of poles. In the free state, each pole is deflected at an acute angle along the steering direction with one axis of the pole closest to the stator as a reference. A control circuit comprises a single-phase bridge type rectifier circuit, and a stator winding is connected with a single-phase power source through the alternating-current end thereof. A full-control type power electronic device is directly connected or serially connected with a current detection circuit to be in bridge joint with the direct-current end thereof. Due to the arrangement of the built-in program of the control circuit, the half-wave circuit of the power source is turned on when the motor is started and a main flux axis and a permanent magnetic flux axis are intersected at a predetermined acute angle relative to each other. Meanwhile, the half-wave circuit of the power source is turned on in the pulse control means when the motor is running and the main flux axis and the permanent magnetic flux axis are completely or nearly opposite to each other in direction. Meanwhile, when the motor is running and the main flux axis and the permanent magnetic flux axis are completely or nearly the same in direction, the half-wave circuit of the power source is turned off. The synchronous motor is running at a rotating speed capable of being controlled while out of step based on an electromagnetic structure, so that the aim of speed regulation running is achieved. The self-starting and single-phase permanent magnet motor is simple in structure and high in efficiency.
Description
technical field [0001] The invention relates to a self-starting single-phase permanent magnet motor, which belongs to H02P6 / 08 in the international patent classification table. Background technique [0002] Synchronous motors in the prior art can only operate synchronously according to the frequency of the power supply, and self-starting single-phase permanent magnet synchronous motors are no exception. Frequency conversion power supply is required for speed regulation. Because the speed regulation cannot be done in a more economical way, the application range is limited. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose a self-starting single-phase permanent magnet motor, which uses the electromagnetic structure of a synchronous motor, but has adjustable speed and low cost. [0004] The technical solution of the present invention to solve the technical problem is a self-starting single-phase permanent magnet motor...
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 Applications(China)
IPC IPC(8): H02P6/08H02P6/10
CPCH02P6/08H02P6/10
Inventor 区长钊
Owner JIANGMEN SUNYA MOTOR CO LTD