Disc-type coreless permanent magnet motor employing modular PCB stator

A technology of application modules and permanent magnet motors, applied in the shape/style/structure of winding conductors, static components of magnetic circuits, shape/style/structure of magnetic circuits, etc., can solve eddy current loss, cogging torque fluctuation, automation Problems such as complex off-line process and inconvenient mass production achieve compact axial space, simplify armature manufacturing process and printed circuit board assembly process, and enhance manufacturing flexibility

Inactive Publication Date: 2016-08-24
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of occupied space, if a traditional stator armature is to be used in a disc motor, the iron core needs to be slotted and wound, occupying a large space volume, and will also cause eddy current loss, cogging torque fluctuations, etc.
The iron co...

Method used

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  • Disc-type coreless permanent magnet motor employing modular PCB stator
  • Disc-type coreless permanent magnet motor employing modular PCB stator
  • Disc-type coreless permanent magnet motor employing modular PCB stator

Examples

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Embodiment

[0025] The present invention has a single-stator double-rotor structure. The rotor part includes a back iron support and a surface-mounted NdFeB permanent magnet. The stator is composed of several identical circular PCB circuit boards 1 stacked, and the outside can be pressed by an end cover. The thickness is fixed with screws, and the PCB circuit board 1 is divided into four 90° fan-shaped ring modules 2. The axial connection between each module 2 is realized by setting multiple holes at the inner or outer diameter of each module 2. like figure 1 As shown, each module 2 is uniformly printed with three winding coils 3 along the circumferential direction, and the winding coils 3 are set in a spiral shape, and six outlet holes for positive and negative three-phase are respectively set, such as A + , B + 、C + and A - , B - 、C - The three conductive connection holes 4 of the positive electrode are radially arranged along a diameter side of the module 2, so as to facilitate th...

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PUM

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Abstract

The invention discloses a disc-type coreless permanent magnet motor employing a modular PCB stator. The disc-type coreless permanent magnet motor comprises a rotor and a stator, wherein the stator is formed by superimposing PCBs along the axial direction; each PCB is at least divided into two modules; the same winding coils are evenly printed on each module along the circumferential direction; the winding coils of two adjacent modules in the circumferential direction are connected in series or in parallel; and the winding coils of two adjacent PCBs in the axial direction are connected in series or in parallel. By the disc-type coreless permanent magnet motor, the production cost is reduced; the power density of the motor is improved; and the disc-type coreless permanent magnet motor is suitable for being used as the disc-type permanent magnet motors with all structure types.

Description

technical field [0001] The invention relates to a disc motor, in particular to a disc-type coreless permanent magnet motor using a modular PCB stator. Background technique [0002] The disc permanent magnet motor belongs to the axial flux motor. Compared with the traditional radial flux structure motor, its structure is simpler, and it has the advantages of small size, light weight, low loss, high efficiency, and reliable operation. . In view of these advantages of disc permanent magnet motors, this type of motor is very suitable for high-performance servo motors and high-torque direct drive motors, and has been widely used in mechatronic equipment, especially suitable for electric vehicles and renewable energy systems , Flywheel energy storage systems and other occasions that require high torque density and compact space. [0003] One of the main advantages of the disc motor is its small size and delicate structure. In order to ensure that the size of the disc motor is wi...

Claims

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Application Information

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IPC IPC(8): H02K1/12H02K3/26H02K3/28
CPCH02K1/12H02K3/26H02K3/28
Inventor 王晓远楼斐李春鹏李响
Owner TIANJIN UNIV
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