Thin Stator and the Motor It Consists of

Abstract

Disclosed is a motor with a thin-type stator which solves a problem that the prior art cannot ensure high output power and low operating noise vibration at the same time. The motor includes the stator and a rotor. The stator is provided with a first excitation unit and a second excitation unit. The first excitation unit is provided with at least one coil and a substrate which carries the coils. The second excitation unit is also provided with at least one coil and a substrate which carries the coils. The coils of the first excitation unit are arranged to surround a winding center and the coils of the second excitation unit are arranged to surround the other winding center, wherein the first and second excitation units are arrayed in a stacking direction, and the coils of the first excitation unit and the coils of the second excitation unit are arranged to be overlapping in the stacking direction; and the winding centers of the coils which are arranged in an overlapping manner are arranged in a staggered manner in a circumferential direction of the stator. The rotor is provided with a magnetic pole part which is aligned with the coils of the first excitation unit and the second excitation unit in the stacking direction.

Description

technical field [0001] The present invention relates to a thin stator and the motor thereof, in particular to a thin stator that can effectively reduce the running noise of the rotor while increasing the output power by generating a progressive magnetic field. Background technique [0002] The existing motor is generally composed of a stator and a rotor, wherein the stator is composed of a coil, a circuit board or other related components; generally speaking, the coil of the existing motor is protruding from the surface of the circuit board, Therefore, it is difficult to further reduce the overall axial height of the existing motor. If the existing motor is used in fields such as cooling fans, it will relatively limit the feasibility of designing the existing cooling fans to be lighter, thinner and smaller. [0003] In view of this, the fan industry gradually develops and produces thin stators suitable for micro fans, in order to meet the trend of electronic products becomin...

AI Technical Summary

Problems solved by technology

[0004] However, due to the limited wiring area of ​​each of the coils 931, when the stator 93 needs to drive a larger load (for example: need to drive a heavier rotor 94 or drive the rotor 94 in an upwind environment), it is only possible to increase each coil 931. The wire diameter of the wire of the coil 931 or the mode of increasing the current flowing in each coil 931 increases the output power, so that the magnetic force generated by the excitation of the stator 93 meets the requirement

Only, in this case, it will cause the reluctance instantaneous change amount between the stator 93 and the rotor 94 to be too large during operation, and then cause the operation vibration and noise of the rotor 94 to increase significantly.

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