Three-antipode six-layer flat copper wire winding structure and motor using winding structure

A technology of winding structure and flat copper wire, which is applied in the field of motor winding structure and the motor applying the winding structure, which can solve the problem of the small number of series turns of each phase winding of the motor, the inability to simplify the way of lead-out wires, and the limited use of winding forms, etc. question

Pending Publication Date: 2020-02-28
ZHEJIANG LOONGSON ELECTRIC DRIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the flat copper wire also has its limitations, that is, the number of series turns of each phase winding of the motor can be selected less, because when the number of flat copper wire motor slots and the number of conductors per slot are determined, the number of series turns of each phase winding can only be passed Adjust the number of parallel branches
In order to meet the balance of each branch, the number of parallel branches will also be limited by the number of slots, pole pairs and conductors per slot
[0004] Most of the existing products adopt the form of wave winding, and the connection form of the winding has certain limitations, and the way of leading out wires cannot be simplified
In addition, with wave winding, 3 pairs of poles and 6-layer flat wire cannot form a completely balanced number of parallel branches, such as 6 branches, which limits the use of this type of winding form

Method used

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  • Three-antipode six-layer flat copper wire winding structure and motor using winding structure
  • Three-antipode six-layer flat copper wire winding structure and motor using winding structure
  • Three-antipode six-layer flat copper wire winding structure and motor using winding structure

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Embodiment 1

[0025] Such as figure 1 As shown, a winding structure of 72 slots, 3 pairs of poles, 6 layers of flat copper wires and 6 branches, which includes a three-phase winding structure distributed in at least six winding layers, and each phase winding structure includes a 6-phase winding structure composed of a plurality of winding units. winding branch. The six winding branches are evenly distributed on the circumference, and the winding units on each winding branch are distributed in one pair of poles.

[0026] In this embodiment, each winding branch includes a U-shaped lead-out terminal and a welding terminal. The pitches of the welded ends of each winding branch are equal, which is convenient for automatic wire insertion. The lead-out terminal of the U-shaped cable contains 3 pitch types, which are 11, 12 and 14 respectively. The lead-out terminals of each winding branch are arranged on the outermost winding layer, which is convenient for connecting each winding branch by mean...

Embodiment 2

[0032] Such as image 3 As shown, it is a schematic connection diagram of the winding structure of this embodiment, taking the U-phase stacked winding as an example (the V and W phases are similar to the U phase, and will not be described in detail here), it is a deformation on the structure of the embodiment 1, That is, X1 is connected to U2, and X2 is connected to U3 to form a branch; X4 is connected to U5, and X5 is connected to U6 to form another branch.

[0033] U-phase 1st branch winding from image 3 It goes in at the position of U1, and outputs from the position of X1 to the center point of the three phases. U phase second branch winding from image 3 The U2 in the circuit goes in at the position, and outputs from the position of X2 to the three-phase central point.

[0034] A motor for a new energy vehicle, comprising the above-mentioned 3-pair pole 6-layer flat copper wire winding structure of the present invention, the motor has a high power density and a small v...

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PUM

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Abstract

The object of the present invention is to disclose a three-antipode six-layer flat copper wire winding structure and a motor using the winding structure. The three-antipode six-layer flat copper wirewinding structure includes three phases of mixed winding structure distributed in at least six winding layers. Each phase of the mixed winding structure is composed of a plurality of winding branches.The winding branches are each formed by a plurality of winding elements evenly distributed in each of the winding layers, and adjacent winding elements are alternately distributed in the same slot oradjacent slots. Compared with the prior art, the winding structure can easily realize automatic wire insertion and convenient connection, simplifies a wire connection technique, and facilitates the connection of the respective winding branches by means of a common busbar so as to achieve the object of the present invention.

Description

technical field [0001] The invention relates to a motor winding structure and a motor using the winding structure, in particular to a 3-pair pole 6-layer flat copper wire winding structure and a motor using the winding structure. Background technique [0002] In the long run, miniaturization and high speed will be the main development trend of new energy vehicle motors, and miniaturization will inevitably require a significant increase in motor power density. The flat copper wire winding can increase the slot full rate of the motor, thereby reducing the resistance value and the thermal resistance between the winding and the iron core, thereby increasing the power density of the motor. [0003] The difference between a flat copper wire motor and a round copper wire motor lies in the cross-sectional area and molding method of the copper wire. The flat wire is conducive to the improvement of the motor slot fill rate. Generally, the slot fill rate of the round wire motor is abou...

Claims

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Application Information

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IPC IPC(8): H02K3/28H02K3/12
CPCH02K3/12H02K3/28H02K2213/03
Inventor 王丽
Owner ZHEJIANG LOONGSON ELECTRIC DRIVE TECH CO LTD
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