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Stator core wire hanging framework, stator core and high-speed motor

A stator iron core and skeleton technology, applied in the field of stator iron core hanging wire skeleton and high-speed motor, can solve the problems of affecting the back EMF waveform, reducing motor efficiency, increasing harmonic components, etc., so as to improve motor efficiency, improve heat generation, and reduce iron consumption effect

Inactive Publication Date: 2019-03-08
覃世英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current high-speed motor stator core mainly includes stator teeth and stator yokes stamped from steel sheets as a whole. The space between the stator teeth and the stator teeth is the stator slot, which is used to place the stator coil. Magnetic materials, when the high-speed motor is running, will produce a large iron loss, which will cause serious heating of the motor and reduce the efficiency of the motor. In addition, the current high-speed motor stator core structure will have a large cogging effect, which seriously affects the back EMF waveform. Add harmonic content

Method used

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  • Stator core wire hanging framework, stator core and high-speed motor
  • Stator core wire hanging framework, stator core and high-speed motor
  • Stator core wire hanging framework, stator core and high-speed motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like figure 1 , figure 2 or image 3 As shown, the present embodiment provides a wire-hanging skeleton of a stator core, including a wire-hanging ring part 1, and a wire-hanging tooth part 2 is arranged on the outer peripheral surface of the wire-hanging ring part 1, and the wire-hanging tooth part 2 includes an even number Two hanging wire teeth 201 evenly distributed in the axial direction, and a wire hanging slot for placing the stator coil is formed between adjacent hanging wire teeth 201, wherein, the wire hanging ring part 1 and the wire hanging tooth part 2 are non-magnetic conduction Material.

[0028] It should be noted here that this embodiment is mainly used in high-speed motors or ultra-high-speed motors, specifically, it can be applied in high-speed brushless DC motors. Since high-speed motors or ultra-high-speed motors have very high current frequencies during operation, In order to reduce the iron loss, this embodiment provides a stator core hanging f...

Embodiment 2

[0036] like Figure 4 As shown, this embodiment provides a stator core, including a magnetically conductive ring part 3 and the stator core hanging frame provided in Embodiment 1, and the stator core hanging frame is installed on the inner peripheral surface of the magnetically conductive ring part 3 superior.

[0037] As an optimization, the inner peripheral surface of the magnetic conduction ring part 3 is provided with a positioning groove, and the wire hanging tooth part 2 of the stator core wire hanging frame is provided with a positioning convex edge, and the positioning convex edge is installed on the positioning in the slot.

[0038] As an optimization, one or more W-shaped grooves are arranged on the outer peripheral surface of the magnetic permeable ring part 3 in the axial direction.

[0039] What needs to be explained here is that the magnetically conductive ring part 3 in this embodiment can be laminated with silicon steel sheets, the positioning groove can be a...

Embodiment 3

[0041] like Figure 5 and Image 6 As shown, this embodiment provides a high-speed motor, including:

[0042] Stator, the stator includes the stator core provided in Embodiment 2; wherein, a stator coil is arranged in the wire hanging groove of the stator;

[0043] The rotor includes a rotor shaft 4 and a rotor core 5 sleeved on the rotor shaft 4, the rotor core 5 is located in the wire-hanging ring part 1 of the stator core, and the rotor shaft 4 is supported by at least one bearing 6 , the bearing is fixedly connected with the stator.

[0044] When specifically implementing this embodiment, the stator further includes a stator coil 7 , a housing 8 and a wiring device 9 connected to the stator coil 7 . The high-speed motor in this embodiment may be a high-speed brushless DC motor.

[0045]As an optimization, the rotor shaft 4 is provided with knurling at the junction with the rotor core 5 .

[0046] As an optimization, the bearing 6 is a gas bearing or an electromagnetic...

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Abstract

The invention relates to a stator core wire hanging framework comprising a wire hanging ring, wherein a wire hanging tooth part is arranged on the outer circumferential surface of the wire hanging ring, the wire hanging tooth part comprises an even number of wire hanging teeth uniformly distributed along an axial direction, and a wire hanging groove used for holding a stator coil is formed betweenthe adjacent wire hanging teeth, the wire hanging ring and the wire hanging tooth part are made from non-magnetic conductive material; the invention also relates to a stator core including the statorcore wire hanging framework and a high-speed motor. According to the stator core wire hanging framework, the stator core and the high-speed motor provided by the invention, the stator core wire hanging framework made from the non-magnetic conductive material is used for replacing the stator tooth part made from the magnetic conductive material in the existing motor, the stator core wire hanging framework is made of the non-magnetic conductive material, the magnetic conductive part of the stator core is only the stator yoke part with good integrality in the existing stator core, so that the iron consumption of the motor can be greatly reduced, and heating situation of the motor can be effectively improved, and the motor efficiency can be enhanced.

Description

technical field [0001] The present disclosure relates to the field of motors, and in particular to a stator core hanging frame, a stator core and a high-speed motor. Background technique [0002] High-speed motors are mainly reflected in two aspects. On the one hand, the rotor rotates at high speed. During the actual rotation of the high-speed motor, it can complete tens of thousands or even one hundred thousand times of rotation per minute. On the other hand, the stator winding current frequency is high. , in the actual rotation of the high-speed motor, the current frequency of the motor will be higher than 1000Hz. Therefore, in essence, there is a big difference between the high-speed motor and the ordinary motor. The common structural forms of the high-speed motor mainly include induction motors, reluctance motors and permanent magnet motor. [0003] The current high-speed motor stator core mainly includes stator teeth and stator yokes stamped from steel sheets as a whol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14
CPCH02K1/145
Inventor 覃世英
Owner 覃世英
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