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Three-phase flat wire motor stator and motor

A motor stator and flat wire technology, applied in the stator structure field of three-phase motors, to achieve the effects of improving welding reliability, reducing end height, and reducing assembly difficulty

Pending Publication Date: 2018-01-05
ZHEJIANG FOUNDER MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because it is necessary to control the height of the end of the stator winding to be small enough, there are also certain restrictions on the arrangement of the guide bars of the stator winding

Method used

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  • Three-phase flat wire motor stator and motor
  • Three-phase flat wire motor stator and motor
  • Three-phase flat wire motor stator and motor

Examples

Experimental program
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Effect test

Embodiment 1

[0048] according to Figure 1 to Figure 12 As shown, the present embodiment provides a three-phase flat wire motor stator, which includes an annular stator core S and a stator winding T installed on the stator core.

[0049] The stator winding includes two winding units connected in parallel, including image 3 shown in the first winding unit T1 and Figure 4 The second winding unit T2 is shown. Each winding unit includes 3 phase windings T0 ( Figure 5 The phase winding shown is one of the phase windings in the second winding unit), each phase winding is composed of 23 guide bars connected end to end, and one end of each phase winding is connected with a lead wire, which belongs to the same winding unit The other ends of the three phase windings are connected by a neutral wire.

[0050] The inner wall of the stator core has 48 slots S1 equidistantly arranged along the circumference of the stator core for accommodating the stator windings, and the openings of each slot fac...

Embodiment 2

[0071] This embodiment provides a three-phase flat wire motor, including the stator of Embodiment 1 and a rotor located on the inner periphery of the stator and coaxially arranged with the stator; the stator is fixedly installed in the motor housing, and the rotor passes through the bearing installed in the motor housing.

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Abstract

The invention discloses a three-phase flat wire motor stator and a motor. The stator comprises an annular stator iron core and a stator winding installed on the stator iron core; the stator winding comprises two winding units connected in parallel, each winding unit comprises three phase windings connected in a star shape, each phase winding is formed by connecting 23 guiding strips in an end-to-end mode, a lead wire is connected to one end of each phase winding, and the other ends of the three phase windings belongs to the same winding unit are connected through a neutral line; 48 insertion grooves are formed in the inner wall of the stator iron core, arrayed at equal intervals in the circumferential direction of the stator iron core and used for containing the stator winding, and containing portions are arranged in the insertion grooves in the radius direction of the stator iron core and can contain 6 layers of the guiding strips or lead wires or neutral lines. By optimizing the arrangement mode of the guiding strips of the stator winding, only 12 kinds of guiding strips remain and include the neutral lines and the lead wires, in this way, the production cost for the guiding strips is lowered, and assembly difficulty is also lowered.

Description

technical field [0001] The invention belongs to the field of motor structure, and in particular relates to a stator structure of a three-phase motor used in an electric vehicle. Background technique [0002] The flat wire motor in the prior art requires multiple copper guide bars of different shapes to be spliced ​​together, and then each copper guide bar is welded end to end to form a complete winding coil. In the applicant’s previous flat wire motor design scheme, the stator winding There are usually more than 16 types of guide bars, and the number of guide bar types is directly proportional to the production cost of the guide bars and the difficulty and cost of assembling and welding the stator windings. Moreover, since the height of the end portion of the stator winding needs to be controlled to be sufficiently small, certain restrictions are imposed on the arrangement of the guide bars of the stator winding. On the premise of ensuring that the height of the end portion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K3/14H02K3/28H02K3/04H02K3/50
Inventor 张立峰吴建华朱松伟
Owner ZHEJIANG FOUNDER MOTOR
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