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Axial-flux thin-plate motor

A motor stator, axial magnetic flux technology, applied in the magnetic circuit shape/style/structure, synchronous motor with static armature and rotating magnet, magnetic circuit, etc., can solve the problem of large torque ripple, motor design and manufacturing The methods cannot be integrated consistently, and the motor winding occupancy rate is low, so as to achieve the effect of improving performance and enhancing industrial value.

Inactive Publication Date: 2012-05-30
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Based on solving the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a structure of an axial flux thin motor stator plate, which improves the structure of the axial flux thin motor to solve the problems caused by the design and manufacturing methods of the motor in the past. The integration is consistent, so that the motor winding slot ratio is too low and the torque ripple is too large.

Method used

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  • Axial-flux thin-plate motor

Examples

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Effect test

no. 1 example

[0095] First example: see Figure 5A , Figure 5B , Figure 5C , Figure 5D , Figure 5E As shown, it is a schematic diagram of the structure of the tooth column of the stator disc of the present invention embedded in a tooth shoe, wherein the tooth column 5 of the stator disc is first covered with a wire sleeve 58, and the wire sleeve 58 is made of a plastic material. The wire sleeve 58 A coil 581 is wound on the outside. At this time, there is a gap between the two sides of the tooth column 5 and the wire sleeve 581. These two gaps can be inserted by two external tooth shoes 52. The surface of the tooth shoe 52 has a wave-shaped surface 522. When the tooth When the shoe 52 is put in, the wire sleeve 68 can be slightly deformed to engage the two tooth shoes 52 after being stressed. At least one bump 521 (two in this embodiment) is arranged on the tooth shoe 52, and the stator plate The tooth column 5 correspondingly is provided with a card groove 51, and the card groove 5...

no. 2 example

[0096] Second example: see Figure 6A , Figure 6B , Figure 6C As shown, the difference from the first embodiment is that the connection structure between the tooth column 5 and the tooth shoe 52 can be replaced by the structure of the tooth column 5 and the tooth cap 53, and a groove 57 is arranged on the top surface of the tooth column 5. And the outside of tooth column 5 also utilizes line cover 58 to do a cover, and then utilizes the bar (not shown) of tooth cap 53 bottom surface to embed groove 57 of tooth column 5 top surfaces, after embedding, utilizes a rivet or The fixing assembly 54 of the screw is tightly fitted or locked. Since the two side edges of the tooth cap 53 protrude from the outside of the tooth column 5, it can replace the connection structure between the tooth column 5 and the tooth shoe 52 of the first embodiment above. Tooth column 5 and tooth cap 53 structures are replaced.

no. 3 example

[0097] The third embodiment: as Figure 7A , Figure 7B As shown, a stator chassis 56 is further connected to the bottom surface of the stator plate 55, and a tooth column 5 is arranged on the stator plate 55 and the stator base 56, and a line with a different structure from the previous two embodiments is used outside the tooth column 5. The sleeve 59 is set as a set, and the outside of the wire sleeve 59 is provided with a coil 591, and the wire sleeve 59 is made of a magnetically conductive steel material, the magnetically conductive steel refers to a stainless steel material, and the two side edges of the wire sleeve 59 are also convex Out of the tooth column 5, the structure and function of the tooth shoe 52 of the first embodiment can also be replaced, and the fixed connection between the wire sleeve 59 and the stator chassis 56 can be achieved by a fixing component 54, which can be rivets, or direct welding (not shown in the figure), to form the structure of this embod...

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Abstract

The invention discloses an axial-flux thin-plate motor, which possesses a plate-shaped stator and a plate-shaped rotor, is mainly used on a wheel axis side surface or a medially-arranged flat space to drive a wheel to rotate. The method of making the axial-flux thin-plate motor comprises a first step of using a whole continuous silicon sheet to punch a tooth socket while winding into a circular disc; wherein, the tooth socket pitch is changed one time every winding a loop, finally, a stator disc pedestal only having a tooth column not having a tooth boot is finished; a second step of winding a coil independently and tightly to shape, sleeving a stator tooth column and connecting each phase coil to a distribution disc; and a final step of embedding the integrated forming tooth boot or tooth boot disc into the stator disc to finish a high occupied slot rate plate-shaped stator forming. The integrated forming tooth boot can be made into a tooth boot top possessing a plane or a curved surface via a magnetic conducting material, the axial flux is guided to pass through an air gap according to the boot top geometric shape distribution to reduce a torque ripple.

Description

technical field [0001] The present invention relates to a stator plate structure of an axial magnetic flux thin motor, in particular to an improved axial magnetic flux thin motor structure, which can solve the problem that the motor windings occupy slots due to the inability to integrate the motor design and manufacturing method in the past. The disadvantages of too low rate and too large torque ripple. Background technique [0002] In the structure of the existing thin motor, the winding machine must have a sufficiently large slot opening when winding the motor stator tooth column, and the slot ratio occupied by the winding is less than 50%. Axial flux motors are made of stator discs by slotting and winding, and then the windings that occupy more than 70% of the slots are inserted into the tooth columns, and finally inserted into the integrally formed tooth shoe or tooth shoe plate, the integrally formed tooth The shoe can be made of a magnetically conductive material on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K15/085
CPCH02K21/24H02K1/146H02K3/522H02K1/148H02K2203/12
Inventor 阳毅平许仕欣简士翔
Owner IND TECH RES INST
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