Flat wire stator assembly and driving motor

A flat wire stator and wire stator technology are applied in the field of flat wire stator components and drive motors, which can solve the problems of increased additional copper loss, large asymmetry, and high material cost, and achieve reduced additional copper loss and small asymmetry. , optimize the effect of the connection method

Pending Publication Date: 2020-09-29
SUZHOU INOSA UNITED POWER SYST CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention aims at the problems of large asymmetry in the inductance between the three sets of sub-windings in each phase of the stator winding of the existing flat-wire motor, increased additional copper loss, high material cost, and difficult assembly, and provides a Flat wire stator assembly and drive motor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flat wire stator assembly and driving motor
  • Flat wire stator assembly and driving motor
  • Flat wire stator assembly and driving motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The three sub-windings of each phase of the stator winding include the first sub-winding, the second sub-winding and the third sub-winding, and the three-phase stator winding is wound in the following way:

[0057] The first sub-winding of the stator winding of each phase includes 3n / 8 coils distributed in the first layer L1 and the second layer L2 of the stator slot 7, and 3n / 8 coils distributed in the third layer L3 and the fourth layer L4 of the stator slot 7. n / 4 coils, and 3n / 8 coils distributed in the fifth layer L5 and the sixth layer L6 of the stator slot 7 .

[0058] The second sub-winding of the stator winding of each phase includes 3n / 8 coils distributed in the first layer L1 and the second layer L2 of the stator slot 7, and 3n / 8 coils distributed in the third layer L3 and the fourth layer L4 of the stator slot 7. n / 4 coils, and 3n / 8 coils distributed in the fifth layer L5 and the sixth layer L6 of the stator slot 7 .

[0059] The third sub-winding of the st...

Embodiment 2

[0061] The three sub-windings of each phase of the stator winding include the first sub-winding, the second sub-winding and the third sub-winding, and the three-phase stator winding is wound in the following way:

[0062] The first sub-winding of the stator winding of each phase includes n / 4 coils distributed in the first layer L1 and the second layer L2 of the stator slot 7, and n / 4 coils distributed in the third layer L3 and the fourth layer L4 of the stator slot 7. 3n / 8 coils, and 3n / 8 coils distributed in the fifth layer L5 and the sixth layer L6 of the stator slot 7 .

[0063] The second sub-winding of the stator winding of each phase includes 3n / 8 coils distributed in the first layer L1 and the second layer L2 of the stator slot 7, and 3n / 8 coils distributed in the third layer L3 and the fourth layer L4 of the stator slot 7. 3n / 8 coils, and n / 4 coils distributed in the fifth layer L5 and the sixth layer L6 of the stator slot 7 .

[0064] The third sub-winding of the sta...

Embodiment 3

[0066] The three sub-windings of each phase of the stator winding include the first sub-winding, the second sub-winding and the third sub-winding, and the three-phase stator winding is wound in the following way:

[0067] The first sub-winding of the stator winding of each phase includes 3n / 8 coils distributed in the first layer L1 and the second layer L2 of the stator slot 7, and 3n / 8 coils distributed in the third layer L3 and the fourth layer L4 of the stator slot 7. 3n / 8 coils, and n / 4 coils distributed in the fifth layer L5 and the sixth layer L6 of the stator slot 7 .

[0068] The second sub-winding of the stator winding of each phase includes 3n / 8 coils distributed in the first layer L1 and the second layer L2 of the stator slot 7, and 3n / 8 coils distributed in the third layer L3 and the fourth layer L4 of the stator slot 7. 3n / 8 coils, and n / 4 coils distributed in the fifth layer L5 and the sixth layer L6 of the stator slot 7 .

[0069] The third sub-winding of the st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a flat wire stator assembly and a driving motor. The flat wire stator assembly is applied to an M-phase motor of which the rotor pole number is 2p. The flat wire stator assemblycomprises a stator core and M-phase stator windings, wherein the stator core is provided with stator slots, the M-phase stator windings are wound into six layers in the stator slots, each phase of stator windings of the M phases of stator windings comprises a sets of sub-windings, a is not a divisor of 2p, each set of sub-windings comprises coils which are distributed on a first layer, a second layer, a third layer, a fourth layer, a fifth layer and a sixth layer of the stator slot respectively, and the number of the coils distributed on the first layer and the second layer of the stator slot, the number of the coils distributed on the third layer and the fourth layer and the number of the coils distributed on the fifth layer and the sixth layer of the stator slot of each set of sub-windings are greater than or equal to 2. The flat wire stator assembly is advantaged in that a connection mode is optimized, asymmetry of the inductance among the sub-windings is relatively small, so winding circulation is reduced, and additional copper loss is reduced.

Description

technical field [0001] The embodiments of the present invention relate to the field of motors, and more specifically, to a flat wire stator assembly and a driving motor. Background technique [0002] Environmental pollution and energy crisis have promoted the vigorous development of the new energy vehicle industry, especially the electric vehicle industry. As one of the key executive components of electric vehicles, vehicle drive motors are crucial to the performance of the vehicle. At present, automotive motors are developing in the direction of high speed, light weight, and high efficiency, and there are higher requirements for the power density, efficiency level, and heat dissipation capacity of the motor. [0003] Compared with round wire motors, flat wire motors have higher motor slot fullness, shorter winding ends, higher power density, and stronger heat dissipation capabilities, so they are especially suitable for the application requirements of miniaturization and l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02K3/12H02K3/28
CPCH02K3/12H02K3/28
Inventor 于吉坤陈文欣张杰章正昌
Owner SUZHOU INOSA UNITED POWER SYST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap