Self-starting synchronous motor with coil having magnetic declination
A synchronous motor, self-starting technology, applied to synchronous motors with static armatures and rotating magnets, synchronous machine parts, magnetic circuit rotating parts, etc., can solve the problem of increased manufacturing cost, increased volume, decreased efficiency, etc. problems, to achieve the effect of improving reliability, reducing costs, and reducing size
Inactive Publication Date: 2012-07-11
刘显海
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Problems solved by technology
[0002] At present, the traditional permanent magnet synchronous motor cannot self-start and needs an additional starting device, but the additional starting device will increase the manufacturing cost, weight and volume of the overall motor, reduce efficiency and reliability.
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Embodiment Construction
[0011] exist figure 1 , figure 2 with image 3 Among them, the present invention is an outer rotor type motor, that is, the rotor rotates outside the stator, and the stator is fixed. It consists of a rotating shaft (1), two sets of iron cores (2) and two sets of coils (3). The rotating shaft (1) and the iron core (2) Relatively fixed, one or more sets of coils (3) are wound on the two iron cores (2); The motor casing (5) and the permanent magnet (4) are fixed, and the permanent magnet (4) is a radially magnetized permanent magnet. The number of magnetic poles is equal to the number of magnetic poles after the coil (3) is energized, and in the circumferential space, the distribution There are two sets of permanent magnets with the same number of magnetic poles, and their spatial difference is 360 / (4*n)°, where n is the number of magnetic pole pairs.
[0012] The invention can also be an inner rotor type motor, ie the rotor turns inside the stator.
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The invention relates to a self-starting synchronous motor with a coil having magnetic declination. A stator is fixed and composed of a rotating shaft (1), two iron cores (2) and two groups of coils (3); the rotating shaft (1) is relatively fixed with the iron cores (2); the coils are wrapped on the iron cores (2); the space angle between the two iron cores (2) is 360 / (4*n) degrees, wherein n is the number of pole pairs; a rotor can rotate around the rotating shaft (1) of the stator; the rotor is composed of a motor shell (5) and a permanent magnet (4); the motor shell (5) is relatively fixed with the permanent magnet (4); the permanent magnet (4) is a radially-magnetized permanent magnet, and the number of poles of the permanent magnet is the same as the number of poles of the coils (3) after being powered; and two groups of paired permanent magnets with the same pole numbers are distributed on a circular space. The self-starting synchronous motor with the coil having magnetic declination disclosed by the invention has the beneficial effects that the synchronous motor can be automatically started and has low cost, small volume, high efficiency and high reliability.
Description
Technical field [0001] The invention relates to a self-starting synchronous motor with coils having a magnetic declination angle, which is characterized in that there are two sets of independent coils, and the space of the two sets of coils has a magnetic pole declination angle, and the two sets of coils pass currents with a difference of 90°, which can obtain Self-start. Background technique [0002] At present, the traditional permanent magnet synchronous motor cannot self-start and needs an additional starting device, but the additional starting device will increase the manufacturing cost, weight and volume of the overall motor, reduce efficiency and reliability. Contents of the invention [0003] In order to overcome the shortcomings of the existing permanent magnet synchronous motors, the present invention provides a self-starting motor that does not require an additional starting device, which can reduce the manufacturing cost, volume, weight, efficiency, and reliabi...
Claims
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Inventor 刘显海
Owner 刘显海