2results about How to "Large starting torque" patented technology

The utility model relates to the technical field of suspension door controller, concretely to low pressure direct current brushless suspension door controller, include: wide voltage DC / DC module, its input end access 24V~48V power, output 12V direct current voltage, 5V linear voltage stabilizing circuit, its input end is connected with the 12V output of wide voltage DC / DC module, and output end exports 5V direct current voltage. In the utility model, adopt direct current brushless motor, can realize stepless speed regulation, and starting torque is big, and power factor is high, and efficiency is high, can make suspension door in low speed - high speed - low speed arbitrary smooth switching, and running noise is reduced obviously, can reduce mechanical wear and tear, prolong integral machinery life, simultaneously, it need not rely on operating capacitor, is not affected by the influence of the capacitor capacity drop under low temperature environment, can stably operate in various severe weather, and can satisfy long time continuous work demand, solve the existing single -phase alternating -current motor torque unstable, speed is difficult to control, error accumulation influence precision and the problem of normal operation under low temperature.

The invention provides a rotor assembly of a self-starting permanent magnet auxiliary synchronous reluctance motor and a motor, the rotor assembly comprises a rotor iron core and permanent magnets, the rotor iron core comprises an outer layer filling groove, an inner layer filling groove, permanent magnet grooves, a shaft hole and a rotor excircle, the shaft hole is located at the central axis position of the rotor iron core, and the permanent magnet grooves are located in the outer layer filling groove. The permanent magnet grooves are located in the periphery of the shaft hole so that the permanent magnets can be arranged in the permanent magnet grooves, the inner-layer filling grooves are located between the permanent magnet grooves and the outer circle of the rotor, and the outer-layer filling grooves are located between the inner-layer filling grooves and the outer circle of the rotor. The permanent magnet grooves, the inner-layer filling grooves and the outer-layer filling grooves form a magnetic barrier layer in the radial direction of the rotor, and the inner-layer filling grooves and the outer-layer filling grooves are filled with conductive conductors. According to the self-starting permanent magnet auxiliary synchronous reluctance motor, the problem of low starting torque of the self-starting permanent magnet auxiliary synchronous reluctance motor in the prior art can be solved.