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Axial stators for axial gap type rotating electrical machines

A technology of rotating electric machines and axial clearance, which is applied in the stator field to achieve the effect of reducing torque ripple and cogging torque

Active Publication Date: 2022-05-06
ADATA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is still room for improvement in the structure of the stator core of the patented patent No. TW I562509, and its torque ripple and cogging torque will be more obvious, so that the axial flow gap type rotating motor will still generate noise when it is applied in the automotive field , vibration, total harmonic distortion (Total Harmonic Distortion, THD) of voltage and current, etc.

Method used

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  • Axial stators for axial gap type rotating electrical machines
  • Axial stators for axial gap type rotating electrical machines
  • Axial stators for axial gap type rotating electrical machines

Examples

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no. 1 example

[0033] First, see Figure 1 to Figure 3 as shown, figure 1 and figure 2 are three-dimensional schematic diagrams of the axial stator of the axial gap type rotating electrical machine according to the first embodiment of the present invention, respectively, image 3 for figure 1 Schematic cross-section of the III-III section. The present invention provides an axial stator U of an axial gap type rotating electric machine, that is, a stator structure applicable to an axial electric motor. The axial stator U may include: an annular disc structure 1 and a plurality of tooth structures 2 . The annular disk structure 1 may include a first surface 11 and a second surface 12 corresponding to the first surface 11 . A plurality of tooth structures 2 can be disposed on the first surface 11 of the annular disk structure 1 , and the plurality of tooth structures 2 can surround a central axis 10 of the annular disk structure 1 and be arranged at intervals. In addition, it is worth not...

no. 2 example

[0043] see Figure 5 as shown, Figure 5 It is a three-dimensional schematic view of the axial stator of the axial gap rotating electrical machine according to the second embodiment of the present invention. Depend on Figure 5 and figure 1 It can be seen from the comparison that the biggest difference between the second embodiment and the first embodiment is that the axial stator U of the axial gap type rotating electrical machine provided by the second embodiment can be made of a whole roll of silicon steel sheet, that is, Sequentially arranged grooves 20 can be stamped on silicon steel sheets to produce a plurality of sequentially arranged tooth-like structures 2, and then the stamped silicon steel sheets are wound to form a disk-shaped axial gap Axial stator U of type rotating electrical machine. In addition, it should be noted that other structures of the axial stator U of the axial gap type rotating electrical machine provided by the second embodiment are similar to ...

no. 3 example

[0045] see Figure 6 as shown, Figure 6 It is a three-dimensional exploded schematic view of the axial stator of the axial gap rotating electrical machine according to the third embodiment of the present invention. Depend on Figure 6 and figure 1 The comparison shows that the biggest difference between the third embodiment and the first embodiment is that the annular disk structure 1 and the tooth structure 2 of the axial stator U of the axial gap type rotating electrical machine provided by the second embodiment can be separated That is to say, the annular disc structure 1 may include a first engaging portion 13 that is recessed relative to the first surface 11 and the toothed structure 2 may include a second engaging portion disposed on the tooth bottom 21 Section 25. Thereby, the plurality of tooth-shaped structures 2 can be combined with the first engaging portion 13 of the annular disc structure 1 respectively by using the second engaging portion 25 to form an axial...

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Abstract

The invention discloses an axial stator of an axial gap type rotating electrical machine, which comprises: an annular disc structure and a plurality of tooth structures. The annular disk structure includes a first surface and a second surface. A plurality of tooth-shaped structures are arranged on the first surface of the annular disk-shaped structure, and the plurality of tooth-shaped structures surround a central axis of the annular disk-shaped structure and are arranged at intervals. There is a groove between two adjacent tooth structures. One side of each tooth-shaped structure is connected to the ring-shaped disk structure, and the other side of each tooth-shaped structure has a top surface, and the top surface is arc-shaped. Thereby, the present invention achieves the technical effect of reducing cogging torque.

Description

technical field [0001] The invention relates to a stator, in particular to an axial stator of an axial gap type rotating electrical machine. Background technique [0002] Firstly, in the prior art, there are many different axial-flow gap-type rotating electrical machines, so as to be suitable for high torque and / or high power occasions. For example, in the "Axial Flow Gap Rotating Electric Machine and Its Manufacturing Method, and Flywheel Electric Storage Device" disclosed by the patent No. TW I562509, the manufacturing method of the stator core is to wind a stamped magnetic thin strip to form the core. [0003] However, there is still room for improvement in the structure of the stator core of the patented patent No. TW I562509, and its torque ripple and cogging torque will be more obvious, so that the axial flow gap type rotating motor will still generate noise when it is applied in the automotive field , vibration, total harmonic distortion (Total Harmonic Distortion, T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/14
CPCH02K1/146H02K2201/03
Inventor 萧家祥林继谦阎柏均姚成福
Owner ADATA
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