Three-phase flat wire motor stator winding

A motor stator and three-phase winding technology, which is applied to the shape/style/structure of the winding conductors, and can solve the problems of poor mass production and manufacturing process of flat wire motor stator windings

Pending Publication Date: 2019-03-22
CHINA FIRST AUTOMOBILE
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies in the prior art, to provide a flat wire motor stator winding, and its purpose is to solve the problem th

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

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specific Embodiment approach

[0040] Such as Figure 1 to Figure 6As shown, the present invention provides a three-phase flat wire motor stator winding. The motor stator includes 8 poles and 48 rectangular stator slots at equal intervals. The number of conductors in each rectangular stator slot is 8 layers, and there are three phases in total. Winding structure, that is, U-phase winding structure, V-phase winding structure and W-phase winding structure, each phase winding structure has two branches and the two branches are connected in series, each phase winding structure includes insertion side 1 and welding side 6, welding Side 6 is equipped with power lead wires, the pitch of insertion side 1 is equal and the pitch is 6, the winding structure of each phase is U-shaped wire, the inner layer of the three-phase flat wire motor stator winding leads to the series lead wire, and the three-phase flat wire motor stator The outer layer of the winding leads to the power lead-out line and the star-point connection...

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Abstract

The invention provides a three-phase flat wire motor stator winding. The three-phase flat wire motor stator winding is characterized in that a stator comprises eight poles and 48 rectangular stator slots formed at equal intervals, a number of layers of conductors in each rectangular stator slot is eight, the stator has three phases of winding structures in total, each phase of winding structure comprises two branch circuits which are connected in series, each phase of winding structure comprises an insertion side and a welding side, each welding side is provided with a power supply leading-outwire, pitch of the insertion sides is 6, each phase of winding structure is a U-shaped wire, an inner layer of the stator winding leads out a serial leading-out wire, and an outer layer of the winding leads out the power supply leading-out wires and a star point connecting wire; and the three-phase flat wire motor stator winding processes the serial leading-out wire connection, star point connecting wire connection and power supply leading-out wire connection of the two branch circuits of the same phase on the outer layer in a centralized manner. The three-phase flat wire motor stator windingsimplifies the winding structure, improves the winding insertion and manufacturing processability, realizes mechanical automatic wire insertion, shortens the size of end portions of the winding, reduces the overall size of the flat wire motor, and reduces the axial installation space of a driving motor.

Description

technical field [0001] The invention relates to a three-phase flat wire motor for a new energy vehicle, in particular to a stator winding of a three-phase flat wire motor. Background technique [0002] With the rapid development of new energy vehicle technology, the performance requirements for vehicle drive motors are getting higher and higher. The increase in performance will inevitably lead to an increase in the volume of the drive motor. However, the axial space size of new energy vehicles is very limited, resulting in the drive motor. The contradiction between performance and volume is becoming increasingly prominent. [0003] Meanwhile, drive motors can be classified into distributed winding drive motors and concentrated winding drive motors according to the stator coil winding scheme. Distributed winding drive motors can be divided into round wires and flat copper wires according to the cross-sectional shape of the stator windings. Motors using flat copper wires are...

Claims

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Application Information

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IPC IPC(8): H02K3/28H02K3/12H02K3/04
CPCH02K3/28H02K3/04H02K3/12
Inventor 孙明冲张广会黄维陈子胜李明会李东旭
Owner CHINA FIRST AUTOMOBILE
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