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Stator disc of permanent magnet disc motor

A permanent magnet motor and stator technology, applied in electrical components, electromechanical devices, etc., can solve the problem that heat cannot be dissipated well, and achieve the effect of simple process

Inactive Publication Date: 2012-08-01
深圳飞能能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to solve the technical problem that the heat generated by the stator disc of the disc permanent magnet motor in the prior art cannot be dissipated well

Method used

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  • Stator disc of permanent magnet disc motor
  • Stator disc of permanent magnet disc motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: The box 3 in this embodiment is a metal box with good thermal conductivity, which has a metal box wall 32, and the box wall 32 is in contact with the heat-conducting insulating powder 31, and conducts heat to the outside at this time. Part is the box wall 32. In this embodiment, the heat of the exposed wires 2 on the outer ring of the stator disk can be quickly transferred to the box wall 32 through the heat-conducting insulating powder 31 and then transferred to the outside of the casing through the heat transfer mechanism connected with the box. The heat in the middle of the stator disk can also be quickly transferred to the wire 2 on the outer ring of the stator disk through the good thermal conductivity of the wire 2 in the middle of the stator disk, and then dissipated by the aforementioned method.

Embodiment 2

[0024] Embodiment 2: The box 3 in this embodiment is made of non-thermally conductive material. The box 3 is also provided with a metal sheet, metal plate or metal tube (not shown in the figure) that can conduct heat to the outside, and the metal sheet, metal plate or metal tube is in contact with the heat-conducting insulating powder 31 , At this time, the external conducting member is the metal sheet, metal plate or metal tube. The metal sheet, metal plate or metal tube can be close to the part of the wire 2 exposed outside the insulating matrix 1, but not in contact with the wire 2, so as to avoid wearing out the insulating paint on the outside of the wire 2 and causing damage to the wire 2. Short circuit accident. When a larger cooling capacity is required, heat can be quickly transferred to the outside by passing cooling liquid into the metal tube. In this embodiment, the heat of the exposed wires 2 on the outer ring of the stator disk can be quickly transferred to the ...

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Abstract

Disclosed is a stator disc of a permanent magnet disc motor, comprising an insulating substrate and a wire embedded in the insulating substrate. The wire has a portion, which is arranged in an outer ring of the stator disc, and is exposed outside the insulating substrate. A box filled with thermal conductive insulation powder is sleeved on the outer ring of the stator disc, and is provided with an external conduction part capable of dissipating heat outward. The thermal conductive insulation powder contacts with the external conduction part and the portion located on the wire and exposed outside the insulating substrate, while the wire does not contact with the external conduction part. The permanent magnet disc motor provided by the invention is capable of rapidly giving off heat generated by the stator disc during working, regardless of whether or not it is vacuum inside the motor, and has the advantage of simple manufacturing process. Meanwhile, a long-term use of the motor will not wear out insulating paint as the thermal conductive insulation powder is soft fine powder, and even if the paint is slightly worn out, a short circuit accident will not occur due to insulation of the powder.

Description

technical field [0001] The invention relates to a disc permanent magnet motor, in particular to a stator disc structure on the motor. Background technique [0002] The basic structure of the double-rotor single-stator disc permanent magnet motor is that a stator disc is sandwiched between two rotor discs. The middle of the stator disc is the area of ​​electromagnetic action. Except for copper wires, no other conductive substances can be placed in this area, so the general The existing stator plate structure can be found in figure 1 As shown, epoxy resin is used as the matrix 1', and all the copper wires are sealed and fixed to form a thin disk structure. The advantage of the disc permanent magnet motor with the above structure is that the stator has no iron core and no ferromagnetic loss, so the efficiency is very high. [0003] However, since the stator disc is tightly clamped between the two rotor discs, the gap is very small, and the convective heat transfer is extremel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/02
Inventor 肖耀军李方
Owner 深圳飞能能源有限公司
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