Winding method of rotor coil of motor

Abstract

The invention relates to a winding method of a rotor coil of a motor. In the method, a rotor spindle as well as an insulation sleeve and a coil which are sheathed on the rotor spindle are utilized, wherein a commutator and a winding skeleton are sequentially sheathed on the insulation sleeve, a magnetic pole group is arranged on the outer side of the winding skeleton, a coil is wound on twelve through slots which are sequentially arranged along the circumference of the winding skeleton, and a concrete coil winding step is as follows: first-twelfth turns of coils are sequentially wound. The winding method of the rotor coil of the motor provided by the invention adopts a decreasing coil winding manner, and lengths of the first-twelfth turns of coils are the same, thus the fluctuation range of resistance is more stable, the phenomenon that spark is produced when the rotor of the motor rotates can be effectively avoided, and the motor can be avoided from being damaged; and the surface of the commutator selects optimal roughness, and the phenomenon that the commutator slides can be avoided.

Description

technical field [0001] The invention relates to the field of motors, in particular to a winding method for a motor rotor coil. Background technique [0002] With the development of the national economy, motors have been widely used in various equipment, such as motors that drive fan blades, generators driven by wind or water conservancy, etc. These are common motors. [0003] At present, in the method of winding the coil in the motor rotor, the number of coils wound on the rotor of most motors is the same. Since the number of coils wound on the first turn of the coil is the same as the number of turns wound on the twelfth turn of the coil, this method is adopted Winding method, which causes the length of the first turn coil to be L1, and so on, the length of the twelfth turn coil is L12. In this way, the length of the outermost coil is longer, so far the length of L12 is much longer than L1, the fluctuation range of the resistance value is large, the current is unstable, an...

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Problems solved by technology

[0003] At present, in the method of winding the coil in the motor rotor, the number of coils wound on the rotor of most motors is the same. Since the number of coils wound on the first turn of the coil is the same as the number of turns wound on the twelfth turn of the coil, this method is adopted Winding method, which causes the length of the first turn coil to be L1, and so on, the length of the twelfth turn coil is L12. In this way, the length of the outermost coil is longer, so far the length of L12 is much longer than L1, resulting in a large fluctuation range of resistance value, resulting in unstable current and poor anti-electromagnetic interference, which will cause sparks to be generated during the rotation of the motor rotor, resulting in damage to the motor

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