Motor stator structure and its manufacture method

Abstract

This invention relates to a stator structure of a motor and its manufacturing method including a magnet guiding part, a magnet exciting part, a coil, a CB and a bearing part, in which, said coil is winded on a base, said exciting part is composed of an upper pole plate and a lower pole plate, through holes are opened on said magnet guiding part, the upper pole part, the coil base, the lower plate and the CB, a notch is set on the magnet guiding part possibly connected with the through holes of the upper pole, coil base, the lower pole plate and the CB and the hole of the guiding part is connected with a convex rod set on the bearing part.

Description

technical field [0001] The present invention relates to a motor stator structure and its manufacturing method, which mainly relates to the structure of the motor stator, especially the assembly structure of the magnetic conduction part in the motor stator. Background technique [0002] see figure 1 and figure 2 , as shown in the figure, it mainly includes a magnetic tube 11, a magnetic excitation part 12, a coil 13, a circuit board 14 and a support part 15, wherein the coil 13 is wound on a coil seat 131, and the magnetic excitation part 12 is made of The upper pole piece 121 and the lower pole piece 122 are composed of the magnetically permeable cylinder 11, the upper pole piece 121, the lower pole piece 122, the coil seat 131, the circuit board 14 and the supporting part 15, respectively having through holes (111, 121a, 122a, 131a, 141, 151), the through hole 121a of the magnetic permeable cylinder 11 and the upper pole piece 121, the through hole 122a of the lower pole...

AI Technical Summary

Problems solved by technology

[0005] (1) The through hole 121a of the magnetic cylinder 11 and the upper pole piece 121, the through hole 131a of the coil seat 131, the through hole 122a of the lower pole piece 122, the through hole 141 of the circuit board 14 and the through hole 151 of the support part 15 The way of assembling between them is to assemble in the way of tight fit, and the purpose of accurate positioning cannot be achieved during assembling, so that it is still necessary to open the receiving hole 121b and the upper pole piece 121 in the process of assembling. Open the receiving hole 122b and the receiving hole 122c on the lower pole piece 122, and the coil seat 131 is provided with a projection 131b for the assembly of the receiving hole 121b and the receiving hole 122b and is provided on the circuit board 14. The projection 142 that can be assembled with the receiving hole 122c guides its positioning, so that when it is assembled, the upper pole piece 121 and the lower pole piece 122 can pass through the receiving holes (121b, 122b) and the coil base 131. The protruding blocks 131b are arranged in phase to achieve the purpose of staggered positioning, and at the same time, the lower pole piece 122 can be precisely positioned on the circuit board 14 through the combination of the receiving hole 122c and the protruding block 142 of the circuit board 14. Positioning also makes the position between the inductor 143 connected on the circuit board 14 and the upper pole piece 121 and the lower pole piece 122 reach the effect of relative assembly, but the protrusion 131b and the receiving hole (121b, 122b ) is connected to each other, it is often easy to disengage, and since the protrusion 131b and the receiving holes (121b, 122b) are difficult to assemble, it is easy to be inconvenient during assembly. situation occurs

[0006] (2) The magnetic tube 11 is a hollow sleeve, which is easy to cause eddy loss

[0007] (3) Because the receiving hole 121b provided on the upper pole piece 121 and the receiving hole 122b and the receiving hole 122c provided on the lower pole piece 122 are likely to cause loss of magnetic flux (flux), so this assembly method is not practical and needs to be improved

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