Iron-core-provided self-circulating evaporating cooling disk-type motor

A technology for evaporative cooling and disc motors, applied in cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve the problems of difficult implementation of disc motor closed structure, poor cooling water insulation, increased system cost, etc., to achieve improved Insulation and reliability, improved cooling effect, and improved efficiency

Inactive Publication Date: 2014-09-24
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cooling methods of high power density disc motors mainly include forced air cooling and water cooling. Forced air cooling disc motors require an external fan, and the flow direction of the wind must be parallel to the stator winding, which is difficult to implement for the closed structure of disc motors.
High-power-density disk motors are cooled by water-cooling methods, which require water pumps to provide external circulation power. The operating pressure is high, and additional deionization equipment must be equipped, which increases the cost of the system. At the same time, there is a

Method used

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  • Iron-core-provided self-circulating evaporating cooling disk-type motor

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, the disc motor of the present invention adopts an intermediate rotor with iron core stator structure on both sides. The rotor consists of a shaft 9, a bearing 8, a disc-shaped rotor core 10, and magnetic steel 11 fixed on both sides of the core. The rotor core 10 is fixedly welded on the rotor shaft 9; the stator consists of a casing 6, a stator core 1, and a stator coil. 2 and sealing disc 7; the evaporative cooling system is composed of condenser 3, steam inlet pipe 4, liquid return pipe 5, stator cavity 13 and evaporative cooling medium 12.

[0020] The sealing disk 7 is located between the stator and the rotor, and is close to the stator core. The sealing disk 7 and the casing 6 form two independent closed stator cavities 13 , and the stator cavities 13 are filled with evaporative cooling medium 12 . The ...

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Abstract

Disclosed is an iron-core-provided self-circulating evaporating cooling disk-type motor. A stator of the motor is composed of a stator iron core (1), a stator coil (2), an enclosure (6) and a sealing disk (7). A rotor is composed of a bearing (8), a shaft (9), a rotor iron core (10) and magnetic steel (11). An evaporating cooling system is composed of a condenser (3), a steam inlet pipe (4), a liquid return pipe (5), a stator cavity (13) and evaporating cooling media (12). The enclosure (6) and the sealing disk (7) form the stator cavity (13) and the stator cavity (13) is filled with the evaporating cooling media (12). When the disk-type motor runs, heat generated by the stator iron core (1) and the stator coil (2) due to losses is transmitted to the evaporating cooling media (12), so that the temperature of the evaporating cooling media rises, the evaporating cooling media are gasified, phase-change heat absorption is generated, and the evaporating cooling media enter the condenser (3) through the steam inlet pipe (4) to be cooled and become liquid and then flow back into the stator cavity (13) through the liquid return pipe (5). Thus, the self-circulating evaporating cooling system without external force driving is formed.

Description

technical field [0001] The invention relates to a high-power-density and high-power disc motor adopting evaporative cooling technology. Background technique [0002] The air gap of the disc motor is planar, and the air gap magnetic field is distributed along the axial direction, also known as the axial magnetic field motor. The disc motor has high power density, small size, compact structure, high efficiency, large radius and shaft length ratio, and is very suitable for high-torque applications; the stator and rotor are all disc structures, and can be designed as a multi-disk structure , It is convenient to increase the power of the motor; the stator and rotor of the motor are parallel to each other, and the distance between the stator and rotor can be adjusted to adjust the air gap magnetic density and so on. Compared with radial motors, disc motors have a relatively large air gap and multi-air gap structure, and it is generally believed that disc motors have better coolin...

Claims

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Application Information

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IPC IPC(8): H02K9/20H02K1/20
Inventor 栾凤飞宋福川陈彪袁佳毅余顺周侯哲顾国彪
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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