Permanent magnet generator with two coaxial outer rotors and coreless coil

Abstract

The invention discloses a permanent magnet generator with two coaxial outer rotors and a coreless coil, belonging to the technical field of new energy power supply devices. The permanent magnet generator comprises a stator, and the two outer rotors are coaxially sleeved outside the stator and can be matched with a vertical or horizontal wind-driven generator. The coaxial permanent magnet generator is characterized in that stator windings are arranged at two ends of the stator in shape of a cylinder, the center of an inner disc is provided with a hole for fixing a main shaft, the main shaft is supported by bearings in the two outer rotors, permanent magnets symmetric with the stator windings are arranged in the circle area of the inner walls of the outer rotors and rotate along with the outer rotors, and a lead is respectively connected with the output ends of the stator windings to output. According to a new scheme of utilizing a new technology that multiple permanent magnets are longitudinally arranged and multiple or multi-layer coreless coils are stacked, running the secondary utilization of wind energy airflow in a working condition normal state and the mutual facilitation of two wind wheels after combination, and designing that a single bearing supports the outer rotors to run to generate electricity, thus the output power of the wind-driven generator is increased in times, and the wind-driven generator can regularly start generating electricity under the condition of the gentle breeze speed less than 1m / s.

Description

technical field [0001] The invention relates to a double-outer rotor coaxial coreless coil permanent magnet generator, which belongs to the technical field of clean energy wind power generation equipment, and in particular to a high-efficiency wind power generator matched with a vertical or horizontal wind power generator. Background technique [0002] The main engine of the traditional wind power generator is composed of a stator and a rotor, which generally have defects such as large volume, heavy weight, high cost, high noise, large space occupation, and low utilization rate of wind energy; The stator housing and the rotor are respectively equipped with wind wheels with blades in opposite directions, so that the stator and rotor rotate in opposite directions to improve power generation efficiency. The disadvantage is that the stator coil rotates with the housing, and the output wires must pass through conductive shrapnel or The transition of the conductive slip ring, like...

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Problems solved by technology

[0002] The main engine of the traditional wind power generator is composed of a stator and a rotor, which generally have defects such as large volume, heavy weight, high cost, high noise, large space occupation, and low utilization rate of wind energy; Wind wheels with blades in opposite directions are installed on the stator casing and rotor of the stator, so that the stator and rotor rotate in opposite directions to improve power generation efficiency. The disadvantage is that the stator coil rotates with the casing, and the output wire must pass through conductive shrapnel or The transition of the conductive slip ring, like the brush holder in the DC motor, will produce defects such as friction resistance, sparks, and fragility, and the problem is more prominent in larger power generators

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