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Permanent magnet arc-shaped motor with wedge-shaped tooth variable cross-section winding

An arc-shaped motor and variable cross-section technology, applied in the shape/style/structure of winding conductors, electromechanical devices, electrical components, etc., can solve the problems of low torque density, etc. The effect of reducing the tooth height

Pending Publication Date: 2022-06-24
南京迅传智能工业技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low torque density of the traditional disc permanent magnet arc motor, and propose a permanent magnet arc motor with wedge-shaped tooth variable cross-section winding

Method used

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  • Permanent magnet arc-shaped motor with wedge-shaped tooth variable cross-section winding
  • Permanent magnet arc-shaped motor with wedge-shaped tooth variable cross-section winding
  • Permanent magnet arc-shaped motor with wedge-shaped tooth variable cross-section winding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] like figure 1 and figure 2 As shown, this embodiment is a wedge-shaped tooth variable-section winding permanent magnet arc motor, which includes a primary component and a secondary component. Both the primary and secondary components are arc-shaped. The primary assembly includes a primary iron core 1 and an armature winding 2, and a cooling pipe 5 or no cooling pipe 5 is provided, depending on actual needs. Slots are formed on the primary iron core to form a structure of a primary yoke 1-1, S primary teeth 1-2 and Q primary slots 1-3 (both S and Q are integers). The secondary assembly consists of the secondary iron core 4 and the permanent magnet 3 . Between the primary assembly and the secondary assembly is an air gap 7 structure.

[0042] The arc inner diameter of the permanent magnet arc motor with wedge tooth variable section winding is r 1 , the outer diameter of the arc is r 2 , that is, the radius at the inner diameter is r 1 , the radius at the outer dia...

Embodiment 2

[0047] This example is further designed by, such as image 3 As shown, the cross section of each conductor of the armature winding is a rectangle, and at any arc radius r, the shape of the conductor adapts to the shape change of the primary slots 1-3. At the inner diameter of the arc, the width and height of the conductor cross-sections on both sides are respectively w 1 and hw 1 . At the outer diameter of the arc, the width and height of the conductor cross-section are respectively w 2 and hw 2 , w 1 ≠w 2 , hw 1 ≠hw 2 . Along the conductor winding direction, the inner diameter gradually changes from the outer diameter, the conductor cross-sectional shape changes, and the conductor cross-sectional width gradually changes from w 1 increase to w 2 , the height is given by hw 1 gradually decrease to hw 2 , the conductor cross-sectional area w at the inner diameter of the arc 1 ·h 1 Conductor cross-sectional area w with arc outer diameter 2 ·h 2 equal, i.e. w 1 ·h...

Embodiment 3

[0051] This example is further designed by, such as Figure 4 As shown, cooling pipes 5 can be arranged in the armature winding 2, and one cooling pipe is arranged in each primary slot 1-3. In the figure, the conductors 6-1, 6-2, 6-4, 6-5, 6-6 The structure of each layer is the same, and the cross-sectional shape of each position is the same. Each primary tank 1-3 is provided with a cooling pipe. In the figure, the cooling pipe 5-1 is in close contact with the conductor 6-3. Affected by the shape of the cooling pipe 5-1, the cross-sectional shape of the conductor 6-3 is different from that of the conductors 6-1, 6-2, 6-3, and 6 of other layers. -5, 6-6 are different, but the cross-sectional area is the same as the cross-sectional area of ​​other layer conductors 6-1, 6-2, 6-4, 6-5, 6-6 at any cross-sectional position. The cooling pipe adopts an annular structure, and the cooling pipe 5-2 and the cooling pipe 5-2 are connected annular pipes, which are introduced from one side...

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Abstract

The invention provides a wedge-shaped tooth variable cross-section winding permanent magnet arc-shaped motor, and belongs to the technical field of motors. Comprising a primary assembly and a secondary assembly, the primary assembly and the secondary assembly are arc-shaped, the arc-shaped inner diameter of the motor is r1, and the arc-shaped outer diameter is r2; each primary tooth is of a wedge-shaped structure, the primary teeth are gradually heightened in the direction from the arc-shaped inner diameter to the arc-shaped outer diameter, meanwhile, the section of any position of the primary groove is rectangular, and the areas of the rectangles are equal or similar; the armature winding is of a multi-layer conductor structure, and the areas of the sections of all conductors at any position are equal. The armature winding adopts an additive manufacturing process and has a variable cross section shape. A cooling pipeline can be arranged in the primary groove, and the shape of the primary winding can be changed according to the shape of the cooling pipeline. The secondary assembly is composed of a secondary iron core and a permanent magnet. The structure is beneficial to improving the slot fullness rate of the winding, enhancing the cooling of the winding and reducing the mass of the primary iron core, thereby being beneficial to improving the torque density and the dynamic performance of the motor.

Description

technical field [0001] The invention belongs to the field of motors, and mainly relates to a permanent magnet arc motor with a wedge-shaped tooth variable-section winding. Background technique [0002] High-end equipment processing and manufacturing, high-speed and high-precision material transmission in smart factories, etc., have put forward urgent needs for high torque force density and high dynamic disc permanent magnet arc motors. The traditional disc permanent magnet arc motor generally adopts two structures for the slot. The first is a structure with a narrow inner diameter and a wide outer diameter, and the second is a rectangular structure with the same inner and outer diameters. [0003] When the first structure is adopted, since the slot heights at the inner and outer diameters are equal, when the traditional winding structure is adopted, it is easy to have an excessively high slot full rate at the inner diameter, which makes it difficult to process, while the out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/08H02K3/18H02K3/24H02K3/28
CPCH02K1/08H02K3/18H02K3/24H02K3/28H02K2213/03
Inventor 黄旭珍刘岩松徐济安
Owner 南京迅传智能工业技术有限公司
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