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A stator laminated iron core of an axial flux motor and a manufacturing method thereof

A technology of motor stator and axial magnetic flux, which is applied in the manufacture of motor generators, stator/rotor bodies, magnetic circuits, etc., can solve the problems of motor insulation damage, the difficulty of ensuring the accuracy of the effective space of the formed iron core slot, etc. The effect of stable operation, eliminating the winding process and increasing the manufacturing speed

Pending Publication Date: 2018-12-18
冯桂宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for axial flux motors with larger diameters, the production precision of stator cores of conventional axial flux motors with iron cores is very high, and it is difficult to guarantee the accuracy in the effective space of the formed iron core slots
And after rolling, the inside of the stator slot is not smooth enough to form small "steps", and when the motor is running, it is easy to cause damage to the winding insulation of the motor

Method used

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  • A stator laminated iron core of an axial flux motor and a manufacturing method thereof
  • A stator laminated iron core of an axial flux motor and a manufacturing method thereof
  • A stator laminated iron core of an axial flux motor and a manufacturing method thereof

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing, the present invention will be further described:

[0031] figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a method for manufacturing a laminated iron core of an axial flux motor stator includes the following steps: In the first step, the punched sheet is rolled to form a stator yoke disk 1 . The stator yoke disk 1 is rolled from punched sheets and then compressed. The starting and ending positions of the punched sheets are fixed by welding. The stator yoke disk 1 is evenly distributed with tooth yoke connection holes 5 in the circumferential direction. In the second step, the punched sheets are stacked into cuboid block strips, and the stacked layers of the punched sheets are bonded with insulating varnish with bonding effect. The thickness of the cuboid block strip is half of the difference between the outer diameter and the inner diameter of the stator yoke disk 1 . Aft...

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PUM

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Abstract

The invention relates to an axial flux motor stator laminated iron core and a manufacturing method thereof, The stator yoke plate is annular, the stator tooth block is an isosceles trapezoidal hexahedron stacked by punching sheets, the connecting screw passes through the stator yoke plate and the connecting key, and the stator tooth block is fixed on one side of the stator yoke plate, and a regular polygon is formed by a plurality of isosceles trapezoidal stator tooth blocks with equal size and longer bottom edges and their extension lines. A manufacture method includes that step of: wrappinga sheet to form a stator yoke disk; The laminated sheet is made into cuboid block tape, and the laminated sheet is bonded with insulating paint with adhesive effect. The rectangular block strip is beveled along the stacking direction of the punched sheet thickness by wire cutting, and decomposed into a plurality of isosceles trapezoidal hexahedral stator tooth blocks with the same size, and the rectangular block strip is divided into a plurality of isosceles trapezoidal hexahedral stator blocks. The stator tooth blocks are evenly distributed and fixed to the stator yoke plate by connecting screws passing through the stator yoke plate. The invention avoids the problems of easy damage of winding insulation and the like, and can ensure the stable operation of the motor.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a laminated core of an axial flux motor stator and a manufacturing method thereof. Background technique [0002] The stator structure of the axial flux motor is different from that of the traditional column motor, which brings a certain degree of stator manufacturing problems. The traditional motor stator has good symmetry, and all punching pieces can be punched with the same mold. At present, the stator of the axial flux motor is mainly formed by special processing equipment, which is formed by punching the silicon steel strip at high speed and then winding it. Since the motor slot pitch will vary with the diameter during the winding process, this puts higher demands on the manufacturing process. Especially for axial flux motors with larger diameters, the production precision of stator cores of conventional axial flux motors with iron cores is very high, and it is d...

Claims

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Application Information

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IPC IPC(8): H02K15/02H02K1/14H02K1/18
CPCH02K1/146H02K1/18H02K15/022H02K15/026
Inventor 冯桂宏张炳义李巧珊
Owner 冯桂宏
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