Stator of motor

Abstract

The stator of motor includes following parts and structures: winding with wire being wrapped along axial direction possesses two sides on axial direction; an upper pole plate and a lower pole plate are located at the two sides respectively; multiple convex fins are setup on periphery of one pole plate self; at least one insulating strip partitions the winding from the upper pole plate and the lower pole plate; the upper pole plate and the lower pole plate is made from composite soft magnetic material with kernel-shell structure. The kernel-shell structure possesses kernel main body of providing magnetic force, and shell with bonding intensity. Material with the kernel-shell structure is such selected that resistance value of the shell is higher that resistance value of the kernel main body.

Description

【Technical field】 [0001] The invention relates to a motor stator structure, especially an integrally formed motor stator mainly manufactured by powder metallurgy process. 【Background technique】 [0002] Press, with the rapid progress of high-speed computers, the heat consumed by the CPU is getting higher and higher, so cooling fans have been widely used. In the past, the basic requirements of cooling fans are long life, low noise, low power loss, and good cooling effect. . At present, most of the industry are committed to the design of fan blades, bearing design and material improvement, circuit board design, heat sink design and material selection, and the introduction of materials with high thermal conductivity. Obsessed by the deep-rooted idea that silicon steel sheets must be used for motors for a century, both academics and industry personnel have neglected the improvement of the most important part of the motor. Therefore, few people will conduct in-depth research an...

AI Technical Summary

Problems solved by technology

The main reason is that the cross-sectional area of ​​each area is different, and the stress it bears is different, so it is easy to cause the disadvantages of uneven shrinkage and easy deformation

[0006] To sum up the above, the existing stator group or stator structure is quite complicated, the assembly is time-consuming and easy to produce assembly tolerances, and the relative position between the magnetic poles of some designs is easy to produce assembly deviation, which in turn affects the efficiency of the motor

However, if the motor stator structure uses polymer alone as a binder, its mechanical strength and magnetic properties will be severely limited.

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