Three-phase motor stator and electric vehicle drive motor

A technology of three-phase motor and three-phase stator, which is applied in electric vehicles, motors, electric components, etc., and can solve problems such as AC loss

Active Publication Date: 2018-12-18
FAFA AUTOMOBILE (CHINA) CO LTD
View PDF5 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hairpin stator has obvious skin and proximity effects at high frequencies, which causes additional AC loss; and, when new electric vehicles require higher speeds, it will ca...

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
  • Three-phase motor stator and electric vehicle drive motor
  • Three-phase motor stator and electric vehicle drive motor
  • Three-phase motor stator and electric vehicle drive motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0039] In the embodiments of the present invention, unless otherwise stated, the used orientation words such as "up, down, left, right, inside, outside" usually refer to the relative orientations shown in the drawings or embodiments.

[0040] Such as Figure 1AAs shown, the stator of a three-phase motor according to an embodiment of the present invention, the stator includes a stator core, and 72 rectangular stator slots are opened on the stator core, and the stator slots are sequentially numbered as 1 in a clockwise (or counterclockwise) direction - No. 72 slot, and the coil (the...

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 embodiment of the invention provides a three-phase motor stator and an electric vehicle drive motor, belonging to the field of new energy vehicle motors. The three-phase motor stator comprise a stator iron core, A plurality of stator slots are formed in the stator core, wherein the stator windings are arranged in the plurality of stator slots in six layers, the number of slots per pole per phase is 3, and each phase stator coil in the three-phase stator coil is divided into three groups, and each group of stator coils occupies two adjacent stator slots side by side, wherein one stator slotis displaced between two adjacent groups of stator coils. As a result, the harmonics of the motor are effectively reduced, the AC copper consumption caused by skin effect and proximity effect is reduced, the voltage and current of the high-voltage system are matched, and the purposes of high torque, low torque ripple, low vibration noise, good heat dissipation performance and high electrical reliability are achieved.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle motors, in particular to a three-phase motor stator and an electric vehicle drive motor. Background technique [0002] For three-phase AC motors, especially the drive motors of electric vehicles, high torque, low torque ripple, low vibration and noise, good heat dissipation performance, and high electrical reliability are required, among which the design and arrangement of stator coils is particularly critical. [0003] At present, the motor voltage of electric vehicles is generally between 300V and 500V, and it generally adopts a four-layer winding structure. However, when electric vehicles require a higher level of motor voltage, the design and arrangement of stator coils in the prior art limits the performance of the motor. . [0004] In addition, flat copper wire hairpin (Hairpin) stators are increasingly used in electric vehicle motors to improve motor power density, efficiency an...

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): H02K1/16H02K3/34H02K3/28
CPCH02K1/165H02K3/28H02K3/345H02K2213/03Y02T10/64
Inventor 陈毅傅振兴
Owner FAFA AUTOMOBILE (CHINA) 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