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Stator core liquid cooling system

A stator core, liquid cooling technology, applied in cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve the problems of cooling system failure, high risk of short circuit, scale and impurities that are easy to block pipelines, etc., to achieve pipeline pressure. Low, improve the adaptation range, the effect of stable and reliable heat dissipation

Inactive Publication Date: 2020-06-26
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

[0008] c Once the seal fails, the risk of short circuit caused by water leakage is very large
[0009] d The water internal cooling system needs to have a water purification device, otherwise scale, impurities, etc. will easily block the pipeline and cause the cooling system to fail

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1 Stator core radial self-circulating liquid cooling system of horizontal motor

[0053]For horizontal motors, self-circulating liquid cooling can be realized by adopting stator iron core radial liquid cooling system. The flow of cooling medium does not need to be driven by circulating pumps. The cooling system is simple in structure and consumes almost no energy. The circulation mode of the radial self-circulating liquid cooling system of the stator core of the horizontal motor is as follows: figure 1 As shown, the arrows in the figure indicate the circulation direction of the cooling medium, among which, 001-cold plate, 002-outlet channel, 003-condenser, 004-liquid return channel, one end of the cold plate 001 or the core cooling pipe is connected to the outlet channel 002 , the other end is connected to the liquid return channel 004, and a condenser 003 is arranged between the gas outlet channel 002 and the liquid return channel 004. When the motor is run...

Embodiment 2

[0061] Embodiment 2 Stator core axial self-circulation liquid cooling system of vertical motor

[0062] For the vertical motor, the stator core axial liquid cooling system can realize self-circulating liquid cooling. The flow of the cooling medium does not need to be driven by a circulating pump. The cooling system has a simple structure and consumes almost no energy. The circulation mode of the axial self-circulating liquid cooling system of the stator core of the vertical motor is as follows: Figure 11 As shown, the arrows in the figure indicate the circulation direction of the cooling medium. Among them, 005-single-layer tubular core cooling pipe. The single-layer tubular core cooling tube 005 is a seamless metal tube arranged along the circumference in the stator core. When the single-layer tubular iron core cooling pipe 005 is in different radial positions, it can be coated with insulating material according to design requirements. When the motor is running, the heat ...

Embodiment 3

[0064] Embodiment 3 pump-driven stator core liquid cooling system

[0065] When the motor is installed obliquely at a small angle, within a certain angle, whether it is a radial liquid cooling system or an axial liquid cooling system, the iron core can be cooled by self-circulation. However, when the inclination angle of the motor is too large, when the radial liquid cooling system of the stator core is applied to a vertical motor, and when the axial liquid cooling system of the stator core is applied to a horizontal motor, it is necessary for the circulation pump to drive the cooling medium to overcome the flow resistance. cycle. Including the following two situations:

[0066] (1) Pump driven stator core radial liquid cooling system

[0067] When the motor is installed vertically or close to vertically inclined and the radial liquid cooling system of the stator core is used, the circulation power of the liquid cooling system is relatively small, and a circulating pump is r...

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Abstract

The invention relates to a stator core liquid cooling system, and belongs to the technical field of motor cooling. According to the liquid cooling system, one end of a cooling plate or an iron core cooling pipe is connected with an air outlet channel, the other end of the cooling plate or the iron core cooling pipe is connected with a liquid return channel, and a condenser is arranged between theair outlet channel and the liquid return channel. Heat generated by the iron core is absorbed by a cooling medium in the cooling plate or the iron core cooling pipe, and the cooling medium absorbs heat to be vaporized, penetrates through the air outlet channel, is cooled and condensed into liquid in the condenser and then flows back into the cooling plate or the iron core cooling pipe through theliquid return channel. According to the stator core liquid cooling system, the phase-change heat exchange of the cooling medium is utilized to cool target equipment, the heat exchange efficiency is high, and the temperature control is uniform.

Description

technical field [0001] The invention relates to a stator iron core liquid cooling system, which belongs to the technical field of motor cooling. Background technique [0002] Using air to cool the stator and rotor windings and the surface of the iron core is the mainstream heat dissipation method of the motor. Using hydrogen instead of air as the cooling medium in a large-capacity motor whose air cooling capacity has reached its limit can greatly increase the cooling intensity. However, the motor design, installation and explosion protection technology of hydrogen cooling are relatively complicated. The stator and rotor windings and the stator core of the water internal cooling motor, especially the full water internal cooling motor, adopt the water internal cooling method, which has excellent cooling effect and takes into account the efficient heat dissipation of the iron core. The operating temperature of the stator and rotor windings of the water-cooled motor is not onl...

Claims

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Application Information

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IPC IPC(8): H02K9/197
CPCH02K9/197
Inventor 阮琳王宇
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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